Airworthiness Directives; Bombardier, Inc. Airplanes, 55353-55358 [2016-19480]

Download as PDF Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations jstallworth on DSK7TPTVN1PROD with RULES their comment on special conditions no. 25–612–SC. We provided a detailed response in special conditions no. 25– 612–SC and have now clearly defined the applicability for these Boeing 737– 8 special conditions. One aspect of Boeing’s comment that we did not address in special conditions no. 25– 612–SC is that some design changes may not change a lithium battery installation but affect it, which results in these special conditions being applicable. For example, adding a heat source next to a lithium battery can increase its possibility of entering into thermal runaway. Lithium battery installations affected by design changes must meet these special conditions. Some examples of changes that affect lithium battery installations are those that: • Increase the temperatures or pressures in a battery, • Increase the electrical load on a battery, • Increase potential for imbalance between battery cells, • Modify protective circuitry for a lithium battery, • Increase the airplane level risk due to the location of an existing lithium battery. An example is installation of a new oxygen line next to an existing part that has a lithium battery. The airplane level risk may increase due to the potential hazard of a lithium battery fire in the proximity of oxygen. The FAA has determined that ‘‘uncontrolled’’ in special condition 2 should be ‘‘uncontrollable’’ to more accurately describe the concern. This revision does not change the intended meaning of this special condition. Except as discussed above, the special conditions are adopted as proposed. Applicability As discussed above, these special conditions are applicable to the Model 737–8 airplane. Should the applicant apply at a later date for a change to the type certificate to include another model incorporating the same novel or unusual design feature, or should any other model already included on the same type certificate be modified to incorporate the same novel or unusual design feature, these special conditions would apply to that model as well. These special conditions are only applicable to design changes applied for after the effective date of the special conditions. The existing airplane fleet and follow-on deliveries of airplanes with previously certified nonrechargeable lithium battery installations are not affected. These special conditions are not applicable to previously certified non- VerDate Sep<11>2014 14:10 Aug 18, 2016 Jkt 238001 rechargeable lithium battery installations where the only change is either cosmetic or relocating the installation to improve the safety of the airplane and occupants. The FAA determined that this exclusion is in the public interest because the need to meet all of the special conditions might otherwise deter such design changes that involve relocating batteries. A cosmetic change is a change in appearance only, and does not change any function or safety characteristic of the battery installation. Conclusion This action affects only certain novel or unusual design features on one model of airplane. It is not a rule of general applicability. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. ■ The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. The Special Conditions Accordingly, the following special conditions are part of the type certification basis for the Boeing Model 737–8 airplane. Non-Rechargeable Lithium Battery Installations In lieu of § 25.1353(b)(1) through (b)(4) at Amendment 25–123, each nonrechargeable lithium battery installation must: 1. Maintain safe cell temperatures and pressures under all foreseeable operating conditions to prevent fire and explosion. 2. Prevent the occurrence of selfsustaining, uncontrollable increases in temperature or pressure. 3. Not emit explosive or toxic gases, either in normal operation or as a result of its failure, that may accumulate in hazardous quantities within the airplane. 4. Meet the requirements of § 25.863. 5. Not damage surrounding structure or adjacent systems, equipment, or electrical wiring from corrosive fluids or gases that may escape in such a way as to cause a major or more-severe failure condition. 6. Have provisions to prevent any hazardous effect on airplane structure or systems caused by the maximum amount of heat it can generate due to any failure of it or its individual cells. 7. Have a failure sensing and warning system to alert the flightcrew if its failure affects safe operation of the airplane. PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 55353 8. Have a means for the flightcrew or maintenance personnel to determine the battery charge state if the battery’s function is required for safe operation of the airplane. Note: A battery system consists of the battery and any protective, monitoring, and alerting circuitry or hardware inside or outside of the battery. It also includes vents (where necessary) and packaging. For the purpose of these special conditions, a ‘‘battery’’ and ‘‘battery system’’ are referred to as a battery. Issued in Renton, Washington, on August 12, 2016. Michael Kaszycki, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016–19856 Filed 8–18–16; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2015–3986; Directorate Identifier 2015–NM–057–AD; Amendment 39–18613; AD 2016–16–15] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes. This AD was prompted by reports of chafing damage due to insufficient clearance on the main landing gear (MLG) stabilizer brace, the nacelle A-frame structure, and the adjacent electrical wiring harnesses. An insufficient fillet radius may also exist on certain airplanes. This AD requires, depending on airplane configuration, an inspection of the nacelle A-frame structure for insufficient fillet radius; an inspection for cracking of affected structure, and rework or repair if necessary, and rework of the nacelle A-frame structure; repetitive inspections of the nacelle Aframe structure and the MLG stabilizer brace for insufficient clearance and damage, and repair if necessary, and rework of the nacelle A-frame structure, which would terminate the repetitive inspections; installation of new stop brackets and a shim on each MLG stabilizer brace assembly; and rework of the electrical wiring harnesses in the nacelle area. We are issuing this AD to SUMMARY: E:\FR\FM\19AUR1.SGM 19AUR1 55354 Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations jstallworth on DSK7TPTVN1PROD with RULES detect and correct chafing damage and subsequent premature cracking and fracture of the nacelle A-frame structure, which could result in failure of the MLG stabilizer brace and loss of the MLG down-lock indication, which could adversely affect the safe landing of the airplane. DATES: This AD is effective September 23, 2016. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 23, 2016. ADDRESSES: For Bombardier service information identified in this final rule, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416–375–4000; fax 416–375–4539; email thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. For Goodrich service information identified in this AD, contact Goodrich Corporation, Landing Gear, 1400 South Service Road, West Oakville, ON, Canada L6L 5Y7; phone: 905–825–1568; email: jean.breed@goodrich.com; Internet: https://www.goodrich.com/ TechPubs. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227– 1221. It is also available on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2015–3986. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2015– 3986; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone 800–647– 5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE– 171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7329; fax 516–794–5531. VerDate Sep<11>2014 14:10 Aug 18, 2016 Jkt 238001 SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes. The NPRM published in the Federal Register on October 19, 2015 (80 FR 63147) (‘‘the NPRM’’). The NPRM was prompted by reports of chafing damage due to insufficient clearance on the MLG stabilizer brace, the nacelle Aframe structure, and the adjacent electrical wiring harnesses. An insufficient fillet radius may also exist on certain airplanes. The NPRM proposed to require, depending on airplane configuration, an inspection of the nacelle A-frame structure for insufficient fillet radius; an inspection for cracking of affected structure, and rework or repair if necessary, and rework of the nacelle A-frame structure; repetitive inspections of the nacelle Aframe structure and the MLG stabilizer brace for insufficient clearance and damage, and repair if necessary, and rework of the nacelle A-frame structure, which would terminate the repetitive inspections; installation of new stop brackets and a shim on each MLG stabilizer brace assembly; and rework of the electrical wiring harnesses in the nacelle area. We are issuing this AD to detect and correct chafing damage and subsequent premature cracking and fracture of the nacelle A-frame structure, which could result in failure of the MLG stabilizer brace and loss of the MLG down-lock indication, which could adversely affect the safe landing of the airplane. Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian Airworthiness Directive CF–2014–45, dated December 23, 2014 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition on certain Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes. The MCAI states: The aeroplane manufacturer has discovered that an insufficient fillet radius may exist on the flange of the nacelle Aframe structure on certain aeroplanes. There have also been several in-service reports of chafing damage on the main landing gear (MLG) stabilizer brace, the nacelle A-frame structure and its adjacent electrical wiring harnesses due to insufficient clearance. An insufficient fillet radius and chafing damage on the nacelle A-frame structure and MLG stabilizer brace could lead to premature cracking. Fracture of the nacelle A-frame structure or failure of the MLG stabilizer brace could adversely affect the safe landing PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 of the aeroplane. The damage to the electrical wiring harnesses could result in the loss of the MLG downlock indication. This [Canadian] AD mandates the inspection and rework of the nacelle A-frame structure, and the rework of the forward MLG stabilizer brace assembly and the electrical harnesses in the nacelle area adjacent to the A-frame structure. The following actions are required, depending on airplane configuration. • A detailed inspection of the nacelle A-frame structure for insufficient fillet radius, an eddy current or fluorescent dye penetrant inspection for cracking of affected structure, and rework or repair if necessary. • Rework of the left-hand (LH) side and right-hand (RH) side nacelle Aframe structure, including doing a measurement of the clearance between the fasteners/A-frame structure and MLG stabilizer brace assembly and making sure no fouling condition exists, and repair if necessary. • Repetitive detailed inspections of the nacelle A-frame structure and the MLG stabilizer brace for insufficient clearance and damage, and repair if necessary. • Rework of the nacelle A-frame structure, including a measurement of the clearance between the A-frame structure and MLG stabilizer brace assembly, and a fluorescent dye penetrant inspection or high frequency eddy current inspection for cracking and repair if necessary, which would terminate the repetitive inspections. • Installation of new stop brackets and a shim on each MLG stabilizer brace assembly. • Rework of the electrical wiring harnesses in the nacelle area. The rework includes a detailed inspection of the conduit assembly for certain conditions and repair if any condition is found, replacement of damaged conduit, a measurement of the clearance between the stabilizer brace and electrical harness on both LH and RH nacelles to make sure there is 0.100 inch (2.54 millimeters (mm)) minimum clearance between the MLG stabilizer brace, and a check for damage on the A-frame structure and MLG stabilizer brace and repair if necessary. You may examine the MCAI in the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2015– 3986. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA’s response to each comment. E:\FR\FM\19AUR1.SGM 19AUR1 Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations address the unsafe condition; therefore, there are no changes necessary in those paragraphs in this regard. However, we Horizon Air asked that the following revised service information be included have revised paragraph (k) of this AD to specify doing only the actions provided in the proposed AD for the applicable in ‘‘Part B—Procedure,’’ of the actions: • Bombardier Service Bulletin 84–54– Accomplishment Instructions of Bombardier Service Bulletin 84–32–114, 20, Revision C, dated March 5, 2015. • Bombardier Service Bulletin 84–32– Revision B, dated February 3, 2015, for the required actions specified in that 112, Revision C, dated April 2, 2015. • Bombardier Service Bulletin 84–32– paragraph. 114, Revision B, dated February 3, 2015. Request To Clarify a Certain Reference • Goodrich Service Bulletin 46400– Horizon Air asked that we revise the 32–102 R2, Revision 2, dated February paragraph references in paragraph (l)(1) 17, 2015. of the proposed AD for clarity. Horizon Horizon Air pointed out that several Air stated that paragraph (l)(1) of the of the service documents specified in proposed AD refers to Bombardier the proposed AD have been updated, ModSum IS4Q5450002, Revision B, and asserted that the proposed AD dated June 22, 2012, as acceptable for should be revised to reference the compliance with the actions specified in updated service information. Horizon paragraph (g) of the proposed AD. Air also asked that credit be given for Horizon Air noted that for greater actions done using the previous clarity, the reference should be to revisions of the revised service paragraph (g)(2) of the proposed AD. information. We agree with the commenter’s We agree with the commenter’s request for the reasons provided. We requests. No new work is specified by have changed paragraph (l)(1) of this AD the revised service information; to specify that installing specified therefore, we have revised the ‘‘Related fasteners on the MLG A-frame, in both Service Information under 1 CFR part LH and RH nacelles, in accordance with 51’’ section and the applicable Bombardier ModSum IS4Q5450002, requirements of this AD to refer to the Revision B, dated June 22, 2012, is updated service information. We have acceptable for compliance with the also revised paragraph (m) of this AD to actions specified in paragraph (g)(2) of provide credit for certain actions this AD. required by this AD, if those actions were performed before the effective date Conclusion of this AD using earlier revisions of the We reviewed the relevant data, service information identified considered the comments received, and previously. determined that air safety and the public interest require adopting this AD Request To Omit Job Set-Up and Close with the changes described previously Out Actions and minor editorial changes. We have Horizon Air asked that we not determined that these minor changes: mandate the ‘‘Job Set-up’’ and ‘‘Close • Are consistent with the intent that Out’’ sections of the Accomplishment was proposed in the NPRM for Instructions of certain service correcting the unsafe condition; and information referenced in the NPRM. • Do not add any additional burden Horizon Air stated that these upon the public than was already instructions do not directly correct the proposed in the NPRM. unsafe condition, but they do restrict an We also determined that these operator’s ability to perform other changes will not increase the economic maintenance in conjunction with the burden on any operator or increase the instructions that correct the unsafe scope of this AD. condition. Horizon Air added that only Related Service Information Under the section in the Accomplishment 1 CFR Part 51 Instructions that directly corrects the unsafe condition should be required. Bombardier has issued the following We agree with the commenter’s service information. request to exclude the ‘‘Job Set-up’’ and • ModSum IS4Q2400028, Revision B, ‘‘Close Out’’ sections of the dated December 11, 2012; and ModSum Accomplishment Instructions of certain IS4Q2400029, Revision A, dated July 6, service information identified in this 2012. These modsums describe AD. Paragraphs (g), (h), (i), and (j) of this procedures for rerouting certain AD already identify the specific sections electrical harnesses and installing of the Accomplishment Instructions of grommets. • ModSum IS4Q5450002, Revision B, the applicable service information for dated June 22, 2012. This modsum doing only the actions that directly jstallworth on DSK7TPTVN1PROD with RULES Request To Incorporate Revised Service Information and Provide Credit VerDate Sep<11>2014 14:10 Aug 18, 2016 Jkt 238001 PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 55355 describes procedures for installing specified fasteners on the MLG A-frame, in both the LH and RH nacelles. • ModSum IS4Q5450003, Revision C, dated November 29, 2012. This modsum describes procedures for trimming the horizontal and vertical stiffeners on the MLG A frame in both the LH and RH nacelles. • Service Bulletin 84–32–112, Revision C, dated April 2, 2015. This service information describes procedures for incorporating Bombardier ModSum 4–902416 by installing new stop brackets and new stop shims for all MLG stabilizer brace assemblies. • Service Bulletin 84–32–114, Revision B, dated February 3, 2015. This service information describes procedures for rework of the electrical wiring harnesses in the nacelle area. The rework includes a detailed inspection of the conduit assembly for certain conditions, and repair, replacement of damaged conduit, a measurement of the clearance to make sure there is 0.100 inch (2.54 mm) minimum clearance between the MLG stabilizer brace, and a check for damage on the A-frame structure and MLG stabilizer brace and repair. • Service Bulletin 84–54–19, dated April 18, 2013. This service information describes procedures for detailed inspections of the nacelle A-frame structure for insufficient fillet radius, an eddy current or fluorescent dye penetrant inspection for cracking of affected structure, and rework or repair. • Service Bulletin 84–54–20, Revision C, dated March 5, 2015. This service information describes procedures for detailed inspections of the nacelle Aframe structure and the MLG stabilizer brace for insufficient clearance and damage, and repair. This service information also describes procedures for rework of the nacelle A-frame structure, including a measurement of the clearance between the A-frame structure and MLG stabilizer brace assembly, and a fluorescent dye penetrant inspection or high frequency eddy current inspection for cracking and repair, which would end the inspections. • Service Bulletin 84–54–21, dated May 9, 2013. This service information describes procedures for rework of the LH side and RH side nacelle A-frame structure, including a measurement of the clearance between the fasteners/Aframe structure and MLG stabilizer brace assembly and to make sure no fouling condition exists, and repair. Goodrich has issued the following service information. E:\FR\FM\19AUR1.SGM 19AUR1 55356 Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations • Service Bulletin 46400–32–102 R2, Revision 2, dated February 17, 2015. This service information describes procedures for installing new stop brackets and new stop shims for all MLG stabilizer brace assemblies. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Costs of Compliance We estimate that this AD affects 80 airplanes of U.S. registry. We also estimate that it takes up to 50 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $85 per work-hour. Required parts will cost $8,452 per product. Based on these figures, we estimate the cost of this AD on U.S. operators to be up to $1,016,160, or $12,702 per product. We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this AD. Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. jstallworth on DSK7TPTVN1PROD with RULES Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 14:10 Aug 18, 2016 Jkt 238001 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 Authority for This Rulemaking VerDate Sep<11>2014 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; and 4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ 2016–16–15 Bombardier, Inc.: Amendment 39–18613; Docket No. FAA–2015–3986; Directorate Identifier 2015–NM–057–AD. (a) Effective Date This AD is effective September 23, 2016. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes, certificated in any category, serial numbers (S/Ns) 4001 through 4431 inclusive. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear. (e) Reason This AD was prompted by reports of chafing damage due to insufficient clearance on the main landing gear (MLG) stabilizer brace, the nacelle A-frame structure, and the adjacent electrical wiring harnesses. An insufficient fillet radius might also exist on certain airplanes. We are issuing this AD to detect and correct chafing damage and subsequent premature cracking and fracture of the nacelle A-frame structure, which could result in failure of the MLG stabilizer brace and loss of the MLG down-lock indication, which could adversely affect the safe landing of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 (g) Inspection, Corrective Actions, and Rework For airplanes having S/Ns 4001 through 4055 inclusive: Do the actions required by paragraphs (g)(1) and (g)(2) of this AD. (1) Within 600 flight hours or 100 days after the effective date of this AD, whichever occurs first: Do a detailed inspection of the left-hand (LH) side and right-hand (RH) side nacelle A-frame structure for insufficient fillet radius, in accordance with ‘‘Part A— Inspection’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–19, dated April 18, 2013. If an insufficient fillet radius exists, before further flight, do an eddy current or fluorescent dye penetrant inspection for cracking, in accordance with ‘‘Part A—Inspection’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–19, dated April 18, 2013. (i) If any cracking is found: Before further flight, repair using a method approved by the Manager, New York Aircraft Certification Office (ACO), ANE–170, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.’s TCCA Design Approval Organization (DAO). (ii) If no cracking is found: Before further flight, rework the structure, in accordance with ‘‘Part B—Rectification’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–19, dated April 18, 2013. (2) Within 6,000 flight hours or 36 months after the effective date of this AD, whichever occurs first: Rework the LH side and RH side nacelle A-frame structure, including doing a measurement of the clearance between the fasteners/A-frame structure and MLG stabilizer brace assembly and making sure no fouling condition exists, in accordance with paragraph 3.B., ‘‘Procedure,’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–21, dated May 9, 2013. If the clearance is found to be less than 0.100 inch (2.54 millimeters (mm)) between the fasteners/A-frame structure and MLG stabilizer brace assembly after the rework is done, or a fouling condition exists during the extension of the MLG after rework is done, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (h) Repetitive Inspections and Corrective Actions For airplanes having S/Ns 4056 through 4426 inclusive: Within 600 flight hours or 100 days after the effective date of this AD, whichever occurs first, do a detailed inspection of the LH side and RH side nacelle A-frame structure and upper surface of the MLG stabilizer brace for insufficient clearance and damage (e.g., cracking), in accordance with ‘‘Part A—Inspection’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–20, Revision C, dated March 5, 2015. If no damage is found and clearance is sufficient: Repeat the inspection thereafter at intervals not to exceed 600 flight hours until the terminating action required by paragraph (i) of this AD has been done. (1) If a clearance less than 0.100 inch (2.54 mm) exists between the A-frame structure E:\FR\FM\19AUR1.SGM 19AUR1 Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations and the MLG stabilizer brace assembly in the retracted position, after the rework is done, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (2) If any damage is found: Before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (i) Terminating Action for Certain Airplanes For airplanes having S/Ns 4056 through 4426 inclusive: Within 6,000 flight hours or 36 months after the effective date of this AD, whichever occurs first, rework the LH side and RH side nacelle A-frame structure, including doing a measurement of the clearance between the A-frame structure and MLG stabilizer brace assembly and doing a fluorescent dye penetrant inspection or high frequency eddy current inspection for cracking, in accordance with ‘‘Part B— Rework’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–54–20, Revision C, dated March 5, 2015. Accomplishment of the actions required by this paragraph terminates the repetitive inspections required by paragraph (h) of this AD. (1) If a clearance less than 0.100 inch (2.54 mm) exists between the A-frame structure and the MLG stabilizer brace assembly in the retracted position, after the rework is done, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (2) If any cracking is found: Before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. jstallworth on DSK7TPTVN1PROD with RULES (j) Modification of MLG Stabilizer Brace Assembly For airplanes having S/Ns 4001 through 4431 inclusive with a MLG stabilizer brace assembly having part number (P/N) 46400–27 installed: Within 6,000 flight hours or 36 months after the effective date of this AD, whichever occurs first, incorporate Bombardier ModSum 4–902416 by installing new stop brackets and a new shim on each MLG stabilizer brace assembly, in accordance with paragraph 3.B., ‘‘Procedure,’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–32–112, Revision C, dated April 2, 2015; and Goodrich Service Bulletin 46400–32–102 R2, Revision 2, dated February 17, 2015. (k) Rework of the Electrical Wiring Harnesses For airplanes having S/Ns 4001 through 4411 inclusive: Within 6,000 flight hours or 36 months after the effective date of this AD, whichever occurs first, rework the LH and RH sides of the electrical wiring harnesses in the nacelle area adjacent to the A-frame structure, including doing the actions specified in paragraphs (k)(1) through (k)(4) of this AD, in accordance with ‘‘Part B— Procedure’’ of the Accomplishment Instructions of Bombardier Service Bulletin 84–32–114, Revision B, dated February 3, 2015. If any damage is found on the A-frame structure or MLG stabilizer brace, before VerDate Sep<11>2014 14:10 Aug 18, 2016 Jkt 238001 further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (1) Doing a detailed inspection of the conduit assembly for the conditions specified in Bombardier Service Bulletin 84–32–114, Revision B, dated February 3, 2015, and, before further flight, repairing if any condition is found. (2) Replacing damaged conduit. (3) Measuring the clearance between the stabilizer brace and electrical harness on both LH and RH nacelles to make sure there is 0.100 inch (2.54 mm) minimum clearance between the MLG stabilizer brace. (4) Checking for damage on the A-frame structure and MLG stabilizer brace. (l) Optional Installations (1) Installing specified fasteners on the MLG A-frame, in both LH and RH nacelles, in accordance with Bombardier ModSum IS4Q5450002, Revision B, dated June 22, 2012, is acceptable for compliance with the actions specified in paragraph (g)(2) of this AD, provided the actions specified in Bombardier ModSum IS4Q5450002 are done within the applicable compliance time specified in paragraph (g) of this AD, except where ModSum IS4Q5450002, Revision B, dated June 22, 2012, specifies to contact Bombardier for reduced clearances, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (2) Trimming the horizontal and vertical stiffeners on the MLG A-frame in both LH and RH nacelles, in accordance with Bombardier ModSum IS4Q5450003, Revision C, dated November 29, 2012, is acceptable for compliance with the actions specified in paragraph (i) of this AD, provided the actions specified in Bombardier ModSum IS4Q5450003 are done within the compliance time specified in paragraph (i) of this AD, except where ModSum IS4Q5450003, Revision C, released November 29, 2012, specifies to contact Bombardier for reduced clearances, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. (3) Rerouting certain electrical harnesses and installing grommets, in accordance with Bombardier ModSum IS4Q2400028, Revision B, dated December 11, 2012 (for S/Ns 4001 through 4098 inclusive); or Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 2012 (for S/Ns 4090 through 4411 inclusive); is acceptable for compliance with the actions specified in paragraph (k) of this AD, provided the actions specified in the applicable modsum are done within the compliance time specified in paragraph (k) of this AD, except where Bombardier ModSum IS4Q2400028, Revision B, dated December 11, 2012; and Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 2012; specify to contact Bombardier to report stabilizer brace or structural damaged findings, before further flight, repair using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 55357 (m) Credit for Previous Actions (1) This paragraph provides credit for actions required by paragraph (i) of this AD, if those actions were performed before the effective date of this AD using the applicable service information specified in paragraph (m)(1)(i), (m)(1)(ii), or (m)(1)(iii) of this AD. This service information is not incorporated by reference in this AD. (i) Bombardier Service Bulletin 84–54–20, dated April 25, 2013. (ii) Bombardier Service Bulletin 84–54–20, Revision A, dated April 9, 2014. (iii) Bombardier Service Bulletin 84–54–20, Revision B, dated October 2, 2014. (2) This paragraph provides credit for actions required by paragraph (j) of this AD, if those actions were performed before the effective date of this AD using the applicable service information specified in paragraph (m)(2)(i), (m)(2)(ii), (m)(2)(iii), or (m)(2)(iv) of this AD. This service information is not incorporated by reference in this AD. (i) Bombardier Service Bulletin 84–32–112, dated December 20, 2012. (ii) Bombardier Service Bulletin 84–32– 112, Revision A, dated April 16, 2014. (iii) Bombardier Service Bulletin 84–32– 112, Revision B, dated September 12, 2014. (iv) Goodrich Service Bulletin 46400–32– 102 R1, Revision 1, dated June 24, 2013. (3) This paragraph provides credit for actions required by paragraph (k) of this AD, if those actions were performed before the effective date of this AD using the applicable service information specified in paragraph (m)(3)(i) or (m)(3)(ii) of this AD. This service information is not incorporated by reference in this AD. (i) Bombardier Service Bulletin 84–32–114, dated June 6, 2013. (ii) Bombardier Service Bulletin 84–32– 114, Revision A, dated September 18, 2013. (n) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York ACO, ANE–170, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the ACO, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7300; fax 516–794–5531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO, ANE–170, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature. E:\FR\FM\19AUR1.SGM 19AUR1 55358 Federal Register / Vol. 81, No. 161 / Friday, August 19, 2016 / Rules and Regulations (o) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian Airworthiness Directive CF–2014–45, dated December 23, 2014, for related information. This MCAI may be found in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2015–3986. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (p)(3), (p)(4), and (p)(5) of this AD. jstallworth on DSK7TPTVN1PROD with RULES (p) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) Bombardier ModSum IS4Q2400028, Revision B, dated December 11, 2012. (This document has 33 pages; the first page of the modsum indicates that there are 32 pages.) (ii) Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 2012. (iii) Bombardier ModSum IS4Q5450002, Revision B, dated June 22, 2012. (iv) Bombardier ModSum IS4Q5450003, Revision C, dated November 29, 2012. (v) Bombardier Service Bulletin 84–32– 112, Revision C, dated April 2, 2015. (vi) Bombardier Service Bulletin 84–32– 114, Revision B, dated February 3, 2015. (vii) Bombardier Service Bulletin 84–54– 19, dated April 18, 2013. (viii) Bombardier Service Bulletin 84–54– 20, Revision C, dated March 5, 2015. (ix) Bombardier Service Bulletin 84–54–21, dated May 9, 2013. (x) Goodrich Service Bulletin 46400–32– 102 R2, Revision 2, dated February 17, 2015. (3) For Bombardier service information identified in this AD, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416–375–4000; fax 416–375–4539; email thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. (4) For Goodrich service information identified in this AD, contact Goodrich Corporation, Landing Gear, 1400 South Service Road, West Oakville, ON, Canada L6L 5Y7; phone: 905–825–1568; email: jean.breed@goodrich.com; Internet: https:// www.goodrich.com/TechPubs. (5) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. (6) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. VerDate Sep<11>2014 14:10 Aug 18, 2016 Jkt 238001 Issued in Renton, Washington, on August 4, 2016. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016–19480 Filed 8–18–16; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2016–4226; Directorate Identifier 2015–NM–095–AD; Amendment 39–18616; AD 2016–17–03] RIN 2120–AA64 Airworthiness Directives; Airbus Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: We are superseding Airworthiness Directive (AD) 2003–25– 07 for certain Airbus Model A319 and A320 series airplanes, and AD 2005–13– 39 for certain Airbus Model A321 series airplanes. AD 2003–25–07 required a revision to the airplane flight manual (AFM) and replacement of both elevator aileron computers (ELACs) having L80 standards with new ELACs having L81 standards. AD 2005–13–39 required a revision to the AFM, replacement of existing ELACs with ELACs having L83 or L91 standards, as applicable; and a concurrent action. Since we issued AD 2003–25–07 and AD 2005–13–39, we have determined that new ELAC standards must be incorporated. The ELAC standards have been upgraded to version L97+, which implements enhanced angle-of-attack (AOA) monitoring to better detect AOA blockage, including multiple AOA blockages. This AD requires replacing existing ELACs with new ELACs having L97+ standards or revising the software in an existing ELAC to the L97+ standards, as applicable, which terminates the requirements of AD 2003–25–07 and AD 2005–13–39. This AD also expands the applicability to include all Airbus Model A318, A319, A320, and A321 series airplanes. We are issuing this AD to prevent inadvertent activation of the AOA protections. Inadvertent activation of the AOA protections could result in a continuous nose-down pitch rate that could result in reduced controllability of the airplane. DATES: This AD is effective September 23, 2016. SUMMARY: PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 23, 2016. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of August 9, 2005 (70 FR 38580, July 5, 2005). The Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD as of January 22, 2004 (68 FR 70431, December 18, 2003). ADDRESSES: For service information identified in this final rule, contact Airbus, Airworthiness Office—EIAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airworth-eas@airbus.com; Internet https://www.airbus.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. It is also available on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 4226. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 4226; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (telephone 800–647–5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057–3356; telephone 425–227–1405; fax 425–227–1149. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2003–25–07, Amendment 39–13390 (68 FR 70431, December 18, 2003) (‘‘AD 2003–25– 07’’); and AD 2005–13–39, Amendment E:\FR\FM\19AUR1.SGM 19AUR1

Agencies

[Federal Register Volume 81, Number 161 (Friday, August 19, 2016)]
[Rules and Regulations]
[Pages 55353-55358]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-19480]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-3986; Directorate Identifier 2015-NM-057-AD; 
Amendment 39-18613; AD 2016-16-15]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes. This AD was 
prompted by reports of chafing damage due to insufficient clearance on 
the main landing gear (MLG) stabilizer brace, the nacelle A-frame 
structure, and the adjacent electrical wiring harnesses. An 
insufficient fillet radius may also exist on certain airplanes. This AD 
requires, depending on airplane configuration, an inspection of the 
nacelle A-frame structure for insufficient fillet radius; an inspection 
for cracking of affected structure, and rework or repair if necessary, 
and rework of the nacelle A-frame structure; repetitive inspections of 
the nacelle A-frame structure and the MLG stabilizer brace for 
insufficient clearance and damage, and repair if necessary, and rework 
of the nacelle A-frame structure, which would terminate the repetitive 
inspections; installation of new stop brackets and a shim on each MLG 
stabilizer brace assembly; and rework of the electrical wiring 
harnesses in the nacelle area. We are issuing this AD to

[[Page 55354]]

detect and correct chafing damage and subsequent premature cracking and 
fracture of the nacelle A-frame structure, which could result in 
failure of the MLG stabilizer brace and loss of the MLG down-lock 
indication, which could adversely affect the safe landing of the 
airplane.

DATES: This AD is effective September 23, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of September 23, 
2016.

ADDRESSES: For Bombardier service information identified in this final 
rule, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 
Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-
4000; fax 416-375-4539; email thd.qseries@aero.bombardier.com; Internet 
https://www.bombardier.com. For Goodrich service information identified 
in this AD, contact Goodrich Corporation, Landing Gear, 1400 South 
Service Road, West Oakville, ON, Canada L6L 5Y7; phone: 905-825-1568; 
email: jean.breed@goodrich.com; Internet: https://www.goodrich.com/TechPubs. You may view this referenced service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 425-
227-1221. It is also available on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
3986.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
3986; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The street address for the Docket Office (telephone 
800-647-5527) is Docket Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7329; fax 516-794-5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain Bombardier, Inc. 
Model DHC-8-400, -401, and -402 airplanes. The NPRM published in the 
Federal Register on October 19, 2015 (80 FR 63147) (``the NPRM''). The 
NPRM was prompted by reports of chafing damage due to insufficient 
clearance on the MLG stabilizer brace, the nacelle A-frame structure, 
and the adjacent electrical wiring harnesses. An insufficient fillet 
radius may also exist on certain airplanes. The NPRM proposed to 
require, depending on airplane configuration, an inspection of the 
nacelle A-frame structure for insufficient fillet radius; an inspection 
for cracking of affected structure, and rework or repair if necessary, 
and rework of the nacelle A-frame structure; repetitive inspections of 
the nacelle A-frame structure and the MLG stabilizer brace for 
insufficient clearance and damage, and repair if necessary, and rework 
of the nacelle A-frame structure, which would terminate the repetitive 
inspections; installation of new stop brackets and a shim on each MLG 
stabilizer brace assembly; and rework of the electrical wiring 
harnesses in the nacelle area. We are issuing this AD to detect and 
correct chafing damage and subsequent premature cracking and fracture 
of the nacelle A-frame structure, which could result in failure of the 
MLG stabilizer brace and loss of the MLG down-lock indication, which 
could adversely affect the safe landing of the airplane.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2014-45, dated December 23, 2014 (referred to after this as the 
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to 
correct an unsafe condition on certain Bombardier, Inc. Model DHC-8-
400, -401, and -402 airplanes. The MCAI states:

    The aeroplane manufacturer has discovered that an insufficient 
fillet radius may exist on the flange of the nacelle A-frame 
structure on certain aeroplanes. There have also been several in-
service reports of chafing damage on the main landing gear (MLG) 
stabilizer brace, the nacelle A-frame structure and its adjacent 
electrical wiring harnesses due to insufficient clearance.
    An insufficient fillet radius and chafing damage on the nacelle 
A-frame structure and MLG stabilizer brace could lead to premature 
cracking. Fracture of the nacelle A-frame structure or failure of 
the MLG stabilizer brace could adversely affect the safe landing of 
the aeroplane. The damage to the electrical wiring harnesses could 
result in the loss of the MLG downlock indication.
    This [Canadian] AD mandates the inspection and rework of the 
nacelle A-frame structure, and the rework of the forward MLG 
stabilizer brace assembly and the electrical harnesses in the 
nacelle area adjacent to the A-frame structure.

The following actions are required, depending on airplane 
configuration.
     A detailed inspection of the nacelle A-frame structure for 
insufficient fillet radius, an eddy current or fluorescent dye 
penetrant inspection for cracking of affected structure, and rework or 
repair if necessary.
     Rework of the left-hand (LH) side and right-hand (RH) side 
nacelle A-frame structure, including doing a measurement of the 
clearance between the fasteners/A-frame structure and MLG stabilizer 
brace assembly and making sure no fouling condition exists, and repair 
if necessary.
     Repetitive detailed inspections of the nacelle A-frame 
structure and the MLG stabilizer brace for insufficient clearance and 
damage, and repair if necessary.
     Rework of the nacelle A-frame structure, including a 
measurement of the clearance between the A-frame structure and MLG 
stabilizer brace assembly, and a fluorescent dye penetrant inspection 
or high frequency eddy current inspection for cracking and repair if 
necessary, which would terminate the repetitive inspections.
     Installation of new stop brackets and a shim on each MLG 
stabilizer brace assembly.
     Rework of the electrical wiring harnesses in the nacelle 
area. The rework includes a detailed inspection of the conduit assembly 
for certain conditions and repair if any condition is found, 
replacement of damaged conduit, a measurement of the clearance between 
the stabilizer brace and electrical harness on both LH and RH nacelles 
to make sure there is 0.100 inch (2.54 millimeters (mm)) minimum 
clearance between the MLG stabilizer brace, and a check for damage on 
the A-frame structure and MLG stabilizer brace and repair if necessary.

You may examine the MCAI in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
3986.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM and 
the FAA's response to each comment.

[[Page 55355]]

Request To Incorporate Revised Service Information and Provide Credit

    Horizon Air asked that the following revised service information be 
included in the proposed AD for the applicable actions:
     Bombardier Service Bulletin 84-54-20, Revision C, dated 
March 5, 2015.
     Bombardier Service Bulletin 84-32-112, Revision C, dated 
April 2, 2015.
     Bombardier Service Bulletin 84-32-114, Revision B, dated 
February 3, 2015.
     Goodrich Service Bulletin 46400-32-102 R2, Revision 2, 
dated February 17, 2015.
    Horizon Air pointed out that several of the service documents 
specified in the proposed AD have been updated, and asserted that the 
proposed AD should be revised to reference the updated service 
information. Horizon Air also asked that credit be given for actions 
done using the previous revisions of the revised service information.
    We agree with the commenter's requests. No new work is specified by 
the revised service information; therefore, we have revised the 
``Related Service Information under 1 CFR part 51'' section and the 
applicable requirements of this AD to refer to the updated service 
information. We have also revised paragraph (m) of this AD to provide 
credit for certain actions required by this AD, if those actions were 
performed before the effective date of this AD using earlier revisions 
of the service information identified previously.

Request To Omit Job Set-Up and Close Out Actions

    Horizon Air asked that we not mandate the ``Job Set-up'' and 
``Close Out'' sections of the Accomplishment Instructions of certain 
service information referenced in the NPRM. Horizon Air stated that 
these instructions do not directly correct the unsafe condition, but 
they do restrict an operator's ability to perform other maintenance in 
conjunction with the instructions that correct the unsafe condition. 
Horizon Air added that only the section in the Accomplishment 
Instructions that directly corrects the unsafe condition should be 
required.
    We agree with the commenter's request to exclude the ``Job Set-up'' 
and ``Close Out'' sections of the Accomplishment Instructions of 
certain service information identified in this AD. Paragraphs (g), (h), 
(i), and (j) of this AD already identify the specific sections of the 
Accomplishment Instructions of the applicable service information for 
doing only the actions that directly address the unsafe condition; 
therefore, there are no changes necessary in those paragraphs in this 
regard. However, we have revised paragraph (k) of this AD to specify 
doing only the actions provided in ``Part B--Procedure,'' of the 
Accomplishment Instructions of Bombardier Service Bulletin 84-32-114, 
Revision B, dated February 3, 2015, for the required actions specified 
in that paragraph.

Request To Clarify a Certain Reference

    Horizon Air asked that we revise the paragraph references in 
paragraph (l)(1) of the proposed AD for clarity. Horizon Air stated 
that paragraph (l)(1) of the proposed AD refers to Bombardier ModSum 
IS4Q5450002, Revision B, dated June 22, 2012, as acceptable for 
compliance with the actions specified in paragraph (g) of the proposed 
AD. Horizon Air noted that for greater clarity, the reference should be 
to paragraph (g)(2) of the proposed AD.
    We agree with the commenter's request for the reasons provided. We 
have changed paragraph (l)(1) of this AD to specify that installing 
specified fasteners on the MLG A-frame, in both LH and RH nacelles, in 
accordance with Bombardier ModSum IS4Q5450002, Revision B, dated June 
22, 2012, is acceptable for compliance with the actions specified in 
paragraph (g)(2) of this AD.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information.
     ModSum IS4Q2400028, Revision B, dated December 11, 2012; 
and ModSum IS4Q2400029, Revision A, dated July 6, 2012. These modsums 
describe procedures for rerouting certain electrical harnesses and 
installing grommets.
     ModSum IS4Q5450002, Revision B, dated June 22, 2012. This 
modsum describes procedures for installing specified fasteners on the 
MLG A-frame, in both the LH and RH nacelles.
     ModSum IS4Q5450003, Revision C, dated November 29, 2012. 
This modsum describes procedures for trimming the horizontal and 
vertical stiffeners on the MLG A frame in both the LH and RH nacelles.
     Service Bulletin 84-32-112, Revision C, dated April 2, 
2015. This service information describes procedures for incorporating 
Bombardier ModSum 4-902416 by installing new stop brackets and new stop 
shims for all MLG stabilizer brace assemblies.
     Service Bulletin 84-32-114, Revision B, dated February 3, 
2015. This service information describes procedures for rework of the 
electrical wiring harnesses in the nacelle area. The rework includes a 
detailed inspection of the conduit assembly for certain conditions, and 
repair, replacement of damaged conduit, a measurement of the clearance 
to make sure there is 0.100 inch (2.54 mm) minimum clearance between 
the MLG stabilizer brace, and a check for damage on the A-frame 
structure and MLG stabilizer brace and repair.
     Service Bulletin 84-54-19, dated April 18, 2013. This 
service information describes procedures for detailed inspections of 
the nacelle A-frame structure for insufficient fillet radius, an eddy 
current or fluorescent dye penetrant inspection for cracking of 
affected structure, and rework or repair.
     Service Bulletin 84-54-20, Revision C, dated March 5, 
2015. This service information describes procedures for detailed 
inspections of the nacelle A-frame structure and the MLG stabilizer 
brace for insufficient clearance and damage, and repair. This service 
information also describes procedures for rework of the nacelle A-frame 
structure, including a measurement of the clearance between the A-frame 
structure and MLG stabilizer brace assembly, and a fluorescent dye 
penetrant inspection or high frequency eddy current inspection for 
cracking and repair, which would end the inspections.
     Service Bulletin 84-54-21, dated May 9, 2013. This service 
information describes procedures for rework of the LH side and RH side 
nacelle A-frame structure, including a measurement of the clearance 
between the fasteners/A-frame structure and MLG stabilizer brace 
assembly and to make sure no fouling condition exists, and repair.
    Goodrich has issued the following service information.

[[Page 55356]]

     Service Bulletin 46400-32-102 R2, Revision 2, dated 
February 17, 2015. This service information describes procedures for 
installing new stop brackets and new stop shims for all MLG stabilizer 
brace assemblies.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 80 airplanes of U.S. registry.
    We also estimate that it takes up to 50 work-hours per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour. Required parts will cost $8,452 per product. 
Based on these figures, we estimate the cost of this AD on U.S. 
operators to be up to $1,016,160, or $12,702 per product.
    We have received no definitive data that would enable us to provide 
cost estimates for the on-condition actions specified in this AD.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2016-16-15 Bombardier, Inc.: Amendment 39-18613; Docket No. FAA-
2015-3986; Directorate Identifier 2015-NM-057-AD.

(a) Effective Date

    This AD is effective September 23, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes, certificated in any category, serial numbers (S/Ns) 
4001 through 4431 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
Gear.

(e) Reason

    This AD was prompted by reports of chafing damage due to 
insufficient clearance on the main landing gear (MLG) stabilizer 
brace, the nacelle A-frame structure, and the adjacent electrical 
wiring harnesses. An insufficient fillet radius might also exist on 
certain airplanes. We are issuing this AD to detect and correct 
chafing damage and subsequent premature cracking and fracture of the 
nacelle A-frame structure, which could result in failure of the MLG 
stabilizer brace and loss of the MLG down-lock indication, which 
could adversely affect the safe landing of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Inspection, Corrective Actions, and Rework

    For airplanes having S/Ns 4001 through 4055 inclusive: Do the 
actions required by paragraphs (g)(1) and (g)(2) of this AD.
    (1) Within 600 flight hours or 100 days after the effective date 
of this AD, whichever occurs first: Do a detailed inspection of the 
left-hand (LH) side and right-hand (RH) side nacelle A-frame 
structure for insufficient fillet radius, in accordance with ``Part 
A--Inspection'' of the Accomplishment Instructions of Bombardier 
Service Bulletin 84-54-19, dated April 18, 2013. If an insufficient 
fillet radius exists, before further flight, do an eddy current or 
fluorescent dye penetrant inspection for cracking, in accordance 
with ``Part A--Inspection'' of the Accomplishment Instructions of 
Bombardier Service Bulletin 84-54-19, dated April 18, 2013.
    (i) If any cracking is found: Before further flight, repair 
using a method approved by the Manager, New York Aircraft 
Certification Office (ACO), ANE-170, FAA; or Transport Canada Civil 
Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval 
Organization (DAO).
    (ii) If no cracking is found: Before further flight, rework the 
structure, in accordance with ``Part B--Rectification'' of the 
Accomplishment Instructions of Bombardier Service Bulletin 84-54-19, 
dated April 18, 2013.
    (2) Within 6,000 flight hours or 36 months after the effective 
date of this AD, whichever occurs first: Rework the LH side and RH 
side nacelle A-frame structure, including doing a measurement of the 
clearance between the fasteners/A-frame structure and MLG stabilizer 
brace assembly and making sure no fouling condition exists, in 
accordance with paragraph 3.B., ``Procedure,'' of the Accomplishment 
Instructions of Bombardier Service Bulletin 84-54-21, dated May 9, 
2013. If the clearance is found to be less than 0.100 inch (2.54 
millimeters (mm)) between the fasteners/A-frame structure and MLG 
stabilizer brace assembly after the rework is done, or a fouling 
condition exists during the extension of the MLG after rework is 
done, before further flight, repair using a method approved by the 
Manager, New York ACO, ANE-170, FAA; or TCCA; or Bombardier, Inc.'s 
TCCA DAO.

(h) Repetitive Inspections and Corrective Actions

    For airplanes having S/Ns 4056 through 4426 inclusive: Within 
600 flight hours or 100 days after the effective date of this AD, 
whichever occurs first, do a detailed inspection of the LH side and 
RH side nacelle A-frame structure and upper surface of the MLG 
stabilizer brace for insufficient clearance and damage (e.g., 
cracking), in accordance with ``Part A--Inspection'' of the 
Accomplishment Instructions of Bombardier Service Bulletin 84-54-20, 
Revision C, dated March 5, 2015. If no damage is found and clearance 
is sufficient: Repeat the inspection thereafter at intervals not to 
exceed 600 flight hours until the terminating action required by 
paragraph (i) of this AD has been done.
    (1) If a clearance less than 0.100 inch (2.54 mm) exists between 
the A-frame structure

[[Page 55357]]

and the MLG stabilizer brace assembly in the retracted position, 
after the rework is done, before further flight, repair using a 
method approved by the Manager, New York ACO, ANE-170, FAA; or TCCA; 
or Bombardier, Inc.'s TCCA DAO.
    (2) If any damage is found: Before further flight, repair using 
a method approved by the Manager, New York ACO, ANE-170, FAA; or 
TCCA; or Bombardier, Inc.'s TCCA DAO.

(i) Terminating Action for Certain Airplanes

    For airplanes having S/Ns 4056 through 4426 inclusive: Within 
6,000 flight hours or 36 months after the effective date of this AD, 
whichever occurs first, rework the LH side and RH side nacelle A-
frame structure, including doing a measurement of the clearance 
between the A-frame structure and MLG stabilizer brace assembly and 
doing a fluorescent dye penetrant inspection or high frequency eddy 
current inspection for cracking, in accordance with ``Part B--
Rework'' of the Accomplishment Instructions of Bombardier Service 
Bulletin 84-54-20, Revision C, dated March 5, 2015. Accomplishment 
of the actions required by this paragraph terminates the repetitive 
inspections required by paragraph (h) of this AD.
    (1) If a clearance less than 0.100 inch (2.54 mm) exists between 
the A-frame structure and the MLG stabilizer brace assembly in the 
retracted position, after the rework is done, before further flight, 
repair using a method approved by the Manager, New York ACO, ANE-
170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO.
    (2) If any cracking is found: Before further flight, repair 
using a method approved by the Manager, New York ACO, ANE-170, FAA; 
or TCCA; or Bombardier, Inc.'s TCCA DAO.

(j) Modification of MLG Stabilizer Brace Assembly

    For airplanes having S/Ns 4001 through 4431 inclusive with a MLG 
stabilizer brace assembly having part number (P/N) 46400-27 
installed: Within 6,000 flight hours or 36 months after the 
effective date of this AD, whichever occurs first, incorporate 
Bombardier ModSum 4-902416 by installing new stop brackets and a new 
shim on each MLG stabilizer brace assembly, in accordance with 
paragraph 3.B., ``Procedure,'' of the Accomplishment Instructions of 
Bombardier Service Bulletin 84-32-112, Revision C, dated April 2, 
2015; and Goodrich Service Bulletin 46400-32-102 R2, Revision 2, 
dated February 17, 2015.

(k) Rework of the Electrical Wiring Harnesses

    For airplanes having S/Ns 4001 through 4411 inclusive: Within 
6,000 flight hours or 36 months after the effective date of this AD, 
whichever occurs first, rework the LH and RH sides of the electrical 
wiring harnesses in the nacelle area adjacent to the A-frame 
structure, including doing the actions specified in paragraphs 
(k)(1) through (k)(4) of this AD, in accordance with ``Part B--
Procedure'' of the Accomplishment Instructions of Bombardier Service 
Bulletin 84-32-114, Revision B, dated February 3, 2015. If any 
damage is found on the A-frame structure or MLG stabilizer brace, 
before further flight, repair using a method approved by the 
Manager, New York ACO, ANE-170, FAA; or TCCA; or Bombardier, Inc.'s 
TCCA DAO.
    (1) Doing a detailed inspection of the conduit assembly for the 
conditions specified in Bombardier Service Bulletin 84-32-114, 
Revision B, dated February 3, 2015, and, before further flight, 
repairing if any condition is found.
    (2) Replacing damaged conduit.
    (3) Measuring the clearance between the stabilizer brace and 
electrical harness on both LH and RH nacelles to make sure there is 
0.100 inch (2.54 mm) minimum clearance between the MLG stabilizer 
brace.
    (4) Checking for damage on the A-frame structure and MLG 
stabilizer brace.

(l) Optional Installations

    (1) Installing specified fasteners on the MLG A-frame, in both 
LH and RH nacelles, in accordance with Bombardier ModSum 
IS4Q5450002, Revision B, dated June 22, 2012, is acceptable for 
compliance with the actions specified in paragraph (g)(2) of this 
AD, provided the actions specified in Bombardier ModSum IS4Q5450002 
are done within the applicable compliance time specified in 
paragraph (g) of this AD, except where ModSum IS4Q5450002, Revision 
B, dated June 22, 2012, specifies to contact Bombardier for reduced 
clearances, before further flight, repair using a method approved by 
the Manager, New York ACO, ANE-170, FAA; or TCCA; or Bombardier, 
Inc.'s TCCA DAO.
    (2) Trimming the horizontal and vertical stiffeners on the MLG 
A-frame in both LH and RH nacelles, in accordance with Bombardier 
ModSum IS4Q5450003, Revision C, dated November 29, 2012, is 
acceptable for compliance with the actions specified in paragraph 
(i) of this AD, provided the actions specified in Bombardier ModSum 
IS4Q5450003 are done within the compliance time specified in 
paragraph (i) of this AD, except where ModSum IS4Q5450003, Revision 
C, released November 29, 2012, specifies to contact Bombardier for 
reduced clearances, before further flight, repair using a method 
approved by the Manager, New York ACO, ANE-170, FAA; or TCCA; or 
Bombardier, Inc.'s TCCA DAO.
    (3) Rerouting certain electrical harnesses and installing 
grommets, in accordance with Bombardier ModSum IS4Q2400028, Revision 
B, dated December 11, 2012 (for S/Ns 4001 through 4098 inclusive); 
or Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 2012 
(for S/Ns 4090 through 4411 inclusive); is acceptable for compliance 
with the actions specified in paragraph (k) of this AD, provided the 
actions specified in the applicable modsum are done within the 
compliance time specified in paragraph (k) of this AD, except where 
Bombardier ModSum IS4Q2400028, Revision B, dated December 11, 2012; 
and Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 2012; 
specify to contact Bombardier to report stabilizer brace or 
structural damaged findings, before further flight, repair using a 
method approved by the Manager, New York ACO, ANE-170, FAA; or TCCA; 
or Bombardier, Inc.'s TCCA DAO.

(m) Credit for Previous Actions

    (1) This paragraph provides credit for actions required by 
paragraph (i) of this AD, if those actions were performed before the 
effective date of this AD using the applicable service information 
specified in paragraph (m)(1)(i), (m)(1)(ii), or (m)(1)(iii) of this 
AD. This service information is not incorporated by reference in 
this AD.
    (i) Bombardier Service Bulletin 84-54-20, dated April 25, 2013.
    (ii) Bombardier Service Bulletin 84-54-20, Revision A, dated 
April 9, 2014.
    (iii) Bombardier Service Bulletin 84-54-20, Revision B, dated 
October 2, 2014.
    (2) This paragraph provides credit for actions required by 
paragraph (j) of this AD, if those actions were performed before the 
effective date of this AD using the applicable service information 
specified in paragraph (m)(2)(i), (m)(2)(ii), (m)(2)(iii), or 
(m)(2)(iv) of this AD. This service information is not incorporated 
by reference in this AD.
    (i) Bombardier Service Bulletin 84-32-112, dated December 20, 
2012.
    (ii) Bombardier Service Bulletin 84-32-112, Revision A, dated 
April 16, 2014.
    (iii) Bombardier Service Bulletin 84-32-112, Revision B, dated 
September 12, 2014.
    (iv) Goodrich Service Bulletin 46400-32-102 R1, Revision 1, 
dated June 24, 2013.
    (3) This paragraph provides credit for actions required by 
paragraph (k) of this AD, if those actions were performed before the 
effective date of this AD using the applicable service information 
specified in paragraph (m)(3)(i) or (m)(3)(ii) of this AD. This 
service information is not incorporated by reference in this AD.
    (i) Bombardier Service Bulletin 84-32-114, dated June 6, 2013.
    (ii) Bombardier Service Bulletin 84-32-114, Revision A, dated 
September 18, 2013.

(n) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO, ANE-170, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. In 
accordance with 14 CFR 39.19, send your request to your principal 
inspector or local Flight Standards District Office, as appropriate. 
If sending information directly to the ACO, send it to ATTN: Program 
Manager, Continuing Operational Safety, FAA, New York ACO, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7300; fax 516-794-5531. Before using any approved AMOC, notify your 
appropriate principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office/
certificate holding district office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, New York ACO, 
ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved 
by the DAO, the approval must include the DAO-authorized signature.

[[Page 55358]]

(o) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2014-45, dated December 
23, 2014, for related information. This MCAI may be found in the AD 
docket on the Internet at https://www.regulations.gov by searching 
for and locating Docket No. FAA-2015-3986.
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (p)(3), (p)(4), and (p)(5) of this AD.

(p) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Bombardier ModSum IS4Q2400028, Revision B, dated December 
11, 2012. (This document has 33 pages; the first page of the modsum 
indicates that there are 32 pages.)
    (ii) Bombardier ModSum IS4Q2400029, Revision A, dated July 6, 
2012.
    (iii) Bombardier ModSum IS4Q5450002, Revision B, dated June 22, 
2012.
    (iv) Bombardier ModSum IS4Q5450003, Revision C, dated November 
29, 2012.
    (v) Bombardier Service Bulletin 84-32-112, Revision C, dated 
April 2, 2015.
    (vi) Bombardier Service Bulletin 84-32-114, Revision B, dated 
February 3, 2015.
    (vii) Bombardier Service Bulletin 84-54-19, dated April 18, 
2013.
    (viii) Bombardier Service Bulletin 84-54-20, Revision C, dated 
March 5, 2015.
    (ix) Bombardier Service Bulletin 84-54-21, dated May 9, 2013.
    (x) Goodrich Service Bulletin 46400-32-102 R2, Revision 2, dated 
February 17, 2015.
    (3) For Bombardier service information identified in this AD, 
contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt 
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; 
fax 416-375-4539; email thd.qseries@aero.bombardier.com; Internet 
https://www.bombardier.com.
    (4) For Goodrich service information identified in this AD, 
contact Goodrich Corporation, Landing Gear, 1400 South Service Road, 
West Oakville, ON, Canada L6L 5Y7; phone: 905-825-1568; email: 
jean.breed@goodrich.com; Internet: https://www.goodrich.com/TechPubs.
    (5) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (6) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.


    Issued in Renton, Washington, on August 4, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-19480 Filed 8-18-16; 8:45 am]
 BILLING CODE 4910-13-P
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