Airworthiness Directives; Bombardier, Inc. Airplanes, 13385-13388 [2017-04514]

Download as PDF Federal Register / Vol. 82, No. 47 / Monday, March 13, 2017 / Rules and Regulations TABLE 2 TO PARAGRAPHS (g) AND (i) OF THIS AD—Parts To Be Inspected/Installed [Airbus Service Bulletin A320–53–1293] Acceptable replacement P/N Affected P/N D2707033520000 D2827027120000 D2827093500400 D2907013701200 D2907013800400 D3247012900000 D3817003820000 D3817012320200 D3837021201600 D3837033300400 D4918518320200 D5347043420400 D9248511000000 D9249254100200 D9249282300000 Area D2707033520000 D2827027120000 D2827093500400 D2907013701251 D2907013800451 D3247012900051 D3817003820000 D3817012320251 D3837021201600 D3837033300400 D4918518320200 D5347043420451 D9248511000051 D9249254100251 D9249282300000 Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. Cargo. TABLE 3 TO PARAGRAPHS (g) AND (i) OF THIS AD—Parts To Be Inspected/Installed [Airbus Service Bulletin A320–53–1294] Acceptable replacement P/N Affected P/N jstallworth on DSK7TPTVN1PROD with RULES D2827098326800 D5347051620600 D5347051720600 D5347057120000 D5347067520600 D5347067521400 D5347067520800 D5347067521000 D5347067521600 D5347067620600 D5347067720200 D5347067720400 D5347986520200 Area D2827098326851 D5347051620651 D5347051720651 D5347057120051 D5347067520651 D5347067521451 D5347067520851 D5347067521051 D5347067521651 D5347067620600 D5347067720251 D5347067720451 D5347986520251 Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. Frame. (h) Exception to Paragraph (g) of This AD Where Subtask 531293–832–207–001 of Airbus Service Bulletin A320–53–1293, dated July 23, 2015; including Appendixes 01 and 02, dated July 23, 2015, specifies inspecting Item 19 of Figure A–GVAAA for material heat treatment conformity, and that figure (incorrectly) identifies the inspection area for Item 19 as the four hinge brackets adjacent to the A-profile, this AD requires inspecting part number D491–85183–202–00, which is the A-profile, and not just the brackets. Note 1 to paragraph (h) of this AD: Airbus Technical Adaptation 80095365/011/2016, Issue 1, dated December 1, 2016 (‘‘TA’’) specifies that for Figure A–GVAAA, Sheet 01, of Airbus Service Bulletin A320–53–1293, dated July 30, 2015, Item 19 should point to part number D491–85183–202–00 (and not just to the brackets). The TA also specifies that for Figure A–GRAAA, Sheet 01, of Airbus Service Bulletin A320–53–1293, dated July 30, 2015, the correct Item 19 identification is part number D491–85183– 202–00. (i) Replacement If during the measurement required by paragraph (g) of this AD, any affected part number specified in table 1, 2, or 3 to VerDate Sep<11>2014 14:45 Mar 10, 2017 Jkt 241001 paragraphs (g) and (i) of this AD is found to have a measured value greater than that specified in Figure A–GFAAA, Sheet 01, ‘‘Inspection Flowchart,’’ of the applicable service information identified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD: Before further flight, replace the affected part with the corresponding acceptable replacement part specified in table 1, 2, or 3 to paragraphs (g) and (i) of this AD, in accordance with the Accomplishment Instructions of the applicable service information identified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD. (j) No Reporting Requirement Although the service information identified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD specifies to submit certain information to the manufacturer, this AD does not include that requirement. (k) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM–116, Transport Airplane Directorate, 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 International Branch, send it to ATTN: 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. Information may be emailed to: 9ANM-116-AMOC-REQUESTS@faa.gov. 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, International Branch, ANM– 116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or Airbus’s EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (3) Required for Compliance (RC): If any service information contains procedures or tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator’s maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC. PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 13385 (l) Related Information Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA AD 2015–0219, dated November 3, 2015, 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–2016–6431. (m) 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) Airbus Service Bulletin A320–53–1292, dated July 23, 2015; including Appendixes 01 and 02, dated July 23, 2015. (ii) Airbus Service Bulletin A320–53–1293, dated July 30, 2015; including Appendixes 01 and 02, dated July 30, 2015. (iii) Airbus Service Bulletin A320–53– 1294, dated July 23, 2015; including Appendixes 01 and 02, dated July 23, 2015. (3) For service information identified in this AD, 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. (4) 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. (5) 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. Issued in Renton, Washington, on March 2, 2017. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2017–04657 Filed 3–10–17; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2016–8183; Directorate Identifier 2015–NM–083–AD; Amendment 39–18822; AD 2017–05–11] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: E:\FR\FM\13MRR1.SGM 13MRR1 13386 Federal Register / Vol. 82, No. 47 / Monday, March 13, 2017 / Rules and Regulations We are superseding Airworthiness Directive (AD) 2012–08– 11 for certain Bombardier, Inc. Model DHC–8–400 series airplanes. AD 2012– 08–11 required repetitive inspections for defects and damage of the retract port flexible hoses on the main landing gear (MLG) retraction actuators, and replacement if necessary. This AD continues to require the actions in AD 2012–08–11, requires reorientation of the retraction actuator of the MLG, and removes airplanes from the applicability. This AD was prompted by test results that showed that failure of a retract port flexible hose of a MLG retraction actuator could cause excessive hydraulic fluid leakage. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective April 17, 2017. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of April 17, 2017. The Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD as of May 29, 2012 (77 FR 24351, April 24, 2012). 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 final rule, contact Goodrich Aerospace Canada Ltd., Landing Systems, 1400 South Service Road, West Oakville, ON, Canada L6L 5Y7; telephone +1–877– 808–7575; fax: +1–905–825–6320; email: crc@utas.utc.com; Internet: https://techpubs.goodrich.com/ ContactUs. 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–2016–8183. SUMMARY: jstallworth on DSK7TPTVN1PROD with RULES 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– 8183; 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 VerDate Sep<11>2014 14:45 Mar 10, 2017 Jkt 241001 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: Cesar Gomez, Mechanical Systems Engineer, Airframe and Mechanical Systems Branch, ANE–171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516– 228–7318; fax 516–794–5531. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2012–08–11, Amendment 39–17028 (77 FR 24351, April 24, 2012) (‘‘AD 2012–08–11’’). AD 2012–08–11 applied to certain Bombardier, Inc. Model DHC–8–400 series airplanes. The NPRM published in the Federal Register on August 5, 2016 (81 FR 51821). The NPRM was prompted by our determination that the left and right MLG retraction actuator ports must be reoriented and the retract port flexible hoses replaced with hydraulic tube assemblies to address the identified unsafe condition. The NPRM proposed to continue to require the actions required by AD 2012–08–11. The NPRM also proposed to require reorientation of the retraction actuator of the MLG, which would terminate the repetitive inspections, and to remove certain airplanes from the applicability. We are issuing this AD to prevent hydraulic fluid leakage in the event of a retract port flexible hose failure; this condition could lead to an undamped extension of the MLG and could result in MLG structural failure, leading to an unsafe, asymmetric landing configuration. Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF–2011–14R1, effective May 21, 2015 (referred to after this as the Mandatory Continuing Airworthiness Information, or ’’the MCAI’’), to correct an unsafe condition for certain Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes. This AD also removes airplanes from the applicability of AD 2012–08–11. The MCAI states: Testing has shown that in the event of a main landing gear (MLG) retraction actuator retract port flexible hose failure, in-flight vibrations may cause excessive hydraulic PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 fluid leakage. This could potentially lead to an undamped extension of the MLG, which may result in MLG structural failure, leading to an unsafe asymmetric landing configuration. The original issue of this [Canadian] AD mandated the [detailed] inspection [for defects and damage] of the retract port flexible hose and its replacement [installing a new retract port flexible hose], when required, to prevent damage to the MLG caused by undamped gear extensions. Revision 1 of this [Canadian] AD mandates the reorientation of the MLG Retraction Actuator to prevent hydraulic fluid leakage in the event of a damaged retract port flexible hose. Airplanes having serial number 4425 and on were modified in production and, therefore, the identified unsafe condition does not apply to these airplanes. 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–2016– 8183. 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. Request To Refer to Updated Service Information Horizon Air requested that the NPRM be revised to refer to Bombardier Service Bulletin 84–32–106, Revision B, dated June 18, 2015. As a result, Horizon Air stated that Bombardier Service Bulletin 84–32–106, Revision A, dated April 24, 2015, should be included in paragraph (i), ‘‘Credit for Previous Actions,’’ of the proposed AD along with Bombardier Service Bulletin 84–32–106, dated September 28, 2012. We agree to refer to the latest service information. We have confirmed that the revised service information does not require any work beyond what was published in the NPRM. We have revised this AD to refer to Bombardier Service Bulletin 84–32–106, Revision B, dated June 18, 2015, as the appropriate source of service information for completing certain actions (Modification Summary (ModSum) 4– 902418) required by this AD. We have also revised this AD to provide credit for actions done before the effective date of this AD using Bombardier Service Bulletin 84–32–106, Revision A, dated April 24, 2015. Request To Correct MCAI Number Contact Air Technik GmbH commented that Canadian AD CF– 2011–14R1, effective May 21, 2015, is incorrectly referenced in paragraph (k), E:\FR\FM\13MRR1.SGM 13MRR1 13387 Federal Register / Vol. 82, No. 47 / Monday, March 13, 2017 / Rules and Regulations ‘‘Related Information,’’ of the proposed AD as Canadian AD CF–2011–24R1, effective May 21, 2015. We agree that paragraph (k)(1) of this AD should refer to Canadian AD CF– 2011–14R1, effective May 21, 2015. We have revised paragraph (k)(1) of this AD accordingly. Conclusion We reviewed the available data, including 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 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. procedures for reworking and reorienting the retraction actuators. • Goodrich Service Bulletin 46455– 32–100 R1, dated March 20, 2013. This service information describes procedures for reworking and installing reconfigured hydraulic tube assemblies for the retraction actuators. These service bulletins contain different requirements and must be accomplished at the same time. 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. Related Service Information Under 1 CFR Part 51 Bombardier, Inc. has issued the following service information. • Bombardier Service Bulletin 84–32– 105, Revision A, dated April 24, 2015. This service information describes procedures for reworking and reorienting the retraction actuators (ModSum 4–902327). • Bombardier Service Bulletin 84–32– 106, Revision B, dated June 18, 2015. This service information describes procedures for reworking and installing reconfigured hydraulic tube assemblies for the retraction actuators (ModSum 4– 902418). Goodrich Aerospace Canada Ltd. has issued the following service information. • Goodrich Service Bulletin 46550– 32–99 R2, dated February 19, 2015. This service information describes Costs of Compliance We estimate that this AD affects 82 airplanes of U.S. registry. We estimate the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Inspection (retained action from AD 2012–08–11). Reorient MLG retraction actuators (new action). 1 work-hour × $85 per hour = $85 per inspection cycle. 4 work-hours × $85 per hour = $340 ...... We estimate the following costs to do any necessary replacements that will be Parts cost required based on the results of the required inspection. We have no way of Cost per product $0 0 $85 per inspection cycle. $340 ........................ Cost on U.S. operators $6,970 per inspection cycle. $27,880. determining the number of aircraft that might need this replacement: ON-CONDITION COSTS Action Labor cost Replace the retract port flexible hose (retained action from AD 2012-08-11). 4 work-hours × $85 per hour = $340 ............................... jstallworth on DSK7TPTVN1PROD with RULES According to the manufacturer, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all costs in our cost estimate. 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 VerDate Sep<11>2014 14:45 Mar 10, 2017 Jkt 241001 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: PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 Parts cost Cost per product $713 $1,053 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: E:\FR\FM\13MRR1.SGM 13MRR1 13388 Federal Register / Vol. 82, No. 47 / Monday, March 13, 2017 / Rules and Regulations by paragraph (h) of this AD terminates the inspections required by this paragraph. PART 39—AIRWORTHINESS DIRECTIVES (h) New Requirement of This AD: Reorient MLG Retraction Actuators 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing Airworthiness Directive (AD) 2012–08–11, Amendment 39–17028 (77 FR 24351, April 24, 2012), and adding the following new AD: ■ 2017–05–11 Bombardier, Inc.: Amendment 39–18822; Docket No. FAA–2016–8183; Directorate Identifier 2015–NM–083–AD. (a) Effective Date This AD is effective April 17, 2017. (b) Affected ADs This AD replaces AD 2012–08–11, Amendment 39–17028 (77 FR 24351, April 24, 2012) (‘‘AD 2012–08–11’’). (c) Applicability This AD applies to Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes, certificated in any category, serial numbers 4001 through 4424 inclusive. (d) Subject Air Transport Association (ATA) of America Code 32, Landing gear. (e) Reason This AD was prompted by test reports that showed that failure of a retract port flexible hose of a main landing gear (MLG) retraction actuator could cause excessive hydraulic fluid leakage. We are issuing this AD to prevent hydraulic fluid leakage in the event of a retract port flexible hose failure; this condition could lead to an undamped extension of the MLG and could result in MLG structural failure, leading to an unsafe asymmetric landing configuration. jstallworth on DSK7TPTVN1PROD with RULES (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Repetitive Inspections and Follow-on Action, With New Reference This paragraph restates the requirements of paragraph (g) of AD 2012–08–11, with new reference to terminating action. Within 600 flight hours after May 29, 2012 (the effective date of AD 2012–08–11), do a detailed inspection for defects and damage of the retract port flexible hose of the left and right MLG retraction actuators, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–32–89, dated March 22, 2011. Repeat the inspection thereafter at intervals not to exceed 600 flight hours. If any defect or damage is found, before further flight, replace the retract port flexible hose with a new or serviceable retract port flexible hose, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–32–89, dated March 22, 2011. Doing the actions required VerDate Sep<11>2014 14:45 Mar 10, 2017 Jkt 241001 Within 6,000 flight hours or 36 months, whichever occurs first after the effective date of this AD: Reorient the MLG retraction actuator by incorporating Bombardier Modification Summaries 4–902418 and 4– 902327, in accordance with the Accomplishment Instructions of the applicable service information specified in paragraphs (h)(1) and (h)(2) of this AD. Accomplishment of the actions required by this paragraph terminates the actions required by paragraph (g) of this AD. (1) Bombardier Service Bulletin 84–32– 105, Revision A, dated April 24, 2015; and Goodrich Service Bulletin 46550–32–99 R2, dated February 19, 2015. (2) Bombardier Service Bulletin 84–32– 106, Revision B, dated June 18, 2015; and Goodrich Service Bulletin 46455–32–100 R1, dated March 20, 2013. (i) Credit for Previous Actions This paragraph provides credit for actions required by paragraph (h) of this AD, if those actions were performed before the effective date of this AD using the service information identified in paragraph (i)(1), (i)(2), or (i)(3) of this AD, as applicable. (1) Bombardier Service Bulletin 84–32– 105, dated September 28, 2012. (2) Bombardier Service Bulletin 84–32– 106, dated September 10, 2012. (3) Bombardier Service Bulletin 84–32– 106, Revision A, dated April 24, 2015. (j) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office (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 New York 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. (i) 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. (ii) AMOCs approved previously for AD 2012–08–11 are approved as AMOCs for the corresponding provisions of this AD. (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 Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.’s TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. PO 00000 Frm 00010 Fmt 4700 Sfmt 9990 (k) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF–2011–14R1, dated May 21, 2015, 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–2016–8183. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (l)(4), (l)(5), and (l)(6) of this AD. (l) 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 Service Bulletin 84–32–105, Revision A, dated April 24, 2015. (ii) Bombardier Service Bulletin 84–32– 106, Revision B, dated June 18, 2015. (iii) Goodrich Service Bulletin 46550–32– 99 R2, dated February 19, 2015. (iv) Goodrich Service Bulletin 46455–32– 100 R1, dated March 20, 2013. (3) The following service information was approved for IBR on May 29, 2012 (77 FR 24351, April 24, 2012). (i) Bombardier Service Bulletin 84–32–89, dated March 22, 2011. (ii) Reserved. (4) 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. (5) For Goodrich service information identified in this AD, contact Goodrich Aerospace Canada Ltd., Landing Systems, 1400 South Service Road, West Oakville, ON, Canada L6L 5Y7; telephone +1–877–808– 7575; fax: +1–905–825–6320; email: crc@ utas.utc.com; Internet: https:// techpubs.goodrich.com/ContactUs. (6) 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. (7) 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. Issued in Renton, Washington, on February 28, 2017. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2017–04514 Filed 3–10–17; 8:45 am] BILLING CODE 4910–13–P E:\FR\FM\13MRR1.SGM 13MRR1

Agencies

[Federal Register Volume 82, Number 47 (Monday, March 13, 2017)]
[Rules and Regulations]
[Pages 13385-13388]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-04514]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-8183; Directorate Identifier 2015-NM-083-AD; 
Amendment 39-18822; AD 2017-05-11]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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[[Page 13386]]

SUMMARY: We are superseding Airworthiness Directive (AD) 2012-08-11 for 
certain Bombardier, Inc. Model DHC-8-400 series airplanes. AD 2012-08-
11 required repetitive inspections for defects and damage of the 
retract port flexible hoses on the main landing gear (MLG) retraction 
actuators, and replacement if necessary. This AD continues to require 
the actions in AD 2012-08-11, requires reorientation of the retraction 
actuator of the MLG, and removes airplanes from the applicability. This 
AD was prompted by test results that showed that failure of a retract 
port flexible hose of a MLG retraction actuator could cause excessive 
hydraulic fluid leakage. We are issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective April 17, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of April 17, 
2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of May 
29, 2012 (77 FR 24351, April 24, 2012).

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 final rule, contact Goodrich Aerospace Canada Ltd., Landing 
Systems, 1400 South Service Road, West Oakville, ON, Canada L6L 5Y7; 
telephone +1-877-808-7575; fax: +1-905-825-6320; email: 
crc@utas.utc.com; Internet: https://techpubs.goodrich.com/ContactUs. 
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-2016-8183.

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-
8183; 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: Cesar Gomez, Mechanical Systems 
Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New 
York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 
410, Westbury, NY 11590; telephone 516-228-7318; fax 516-794-5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2012-08-11, Amendment 39-17028 (77 FR 24351, 
April 24, 2012) (``AD 2012-08-11''). AD 2012-08-11 applied to certain 
Bombardier, Inc. Model DHC-8-400 series airplanes. The NPRM published 
in the Federal Register on August 5, 2016 (81 FR 51821). The NPRM was 
prompted by our determination that the left and right MLG retraction 
actuator ports must be reoriented and the retract port flexible hoses 
replaced with hydraulic tube assemblies to address the identified 
unsafe condition. The NPRM proposed to continue to require the actions 
required by AD 2012-08-11. The NPRM also proposed to require 
reorientation of the retraction actuator of the MLG, which would 
terminate the repetitive inspections, and to remove certain airplanes 
from the applicability. We are issuing this AD to prevent hydraulic 
fluid leakage in the event of a retract port flexible hose failure; 
this condition could lead to an undamped extension of the MLG and could 
result in MLG structural failure, leading to an unsafe, asymmetric 
landing configuration.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2011-14R1, effective 
May 21, 2015 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ''the MCAI''), to correct an unsafe 
condition for certain Bombardier, Inc. Model DHC-8-400, -401, and -402 
airplanes. This AD also removes airplanes from the applicability of AD 
2012-08-11. The MCAI states:

    Testing has shown that in the event of a main landing gear (MLG) 
retraction actuator retract port flexible hose failure, in-flight 
vibrations may cause excessive hydraulic fluid leakage. This could 
potentially lead to an undamped extension of the MLG, which may 
result in MLG structural failure, leading to an unsafe asymmetric 
landing configuration.
    The original issue of this [Canadian] AD mandated the [detailed] 
inspection [for defects and damage] of the retract port flexible 
hose and its replacement [installing a new retract port flexible 
hose], when required, to prevent damage to the MLG caused by 
undamped gear extensions.
    Revision 1 of this [Canadian] AD mandates the reorientation of 
the MLG Retraction Actuator to prevent hydraulic fluid leakage in 
the event of a damaged retract port flexible hose.

    Airplanes having serial number 4425 and on were modified in 
production and, therefore, the identified unsafe condition does not 
apply to these airplanes. 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-2016-8183.

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.

Request To Refer to Updated Service Information

    Horizon Air requested that the NPRM be revised to refer to 
Bombardier Service Bulletin 84-32-106, Revision B, dated June 18, 2015. 
As a result, Horizon Air stated that Bombardier Service Bulletin 84-32-
106, Revision A, dated April 24, 2015, should be included in paragraph 
(i), ``Credit for Previous Actions,'' of the proposed AD along with 
Bombardier Service Bulletin 84-32-106, dated September 28, 2012.
    We agree to refer to the latest service information. We have 
confirmed that the revised service information does not require any 
work beyond what was published in the NPRM. We have revised this AD to 
refer to Bombardier Service Bulletin 84-32-106, Revision B, dated June 
18, 2015, as the appropriate source of service information for 
completing certain actions (Modification Summary (ModSum) 4-902418) 
required by this AD. We have also revised this AD to provide credit for 
actions done before the effective date of this AD using Bombardier 
Service Bulletin 84-32-106, Revision A, dated April 24, 2015.

Request To Correct MCAI Number

    Contact Air Technik GmbH commented that Canadian AD CF-2011-14R1, 
effective May 21, 2015, is incorrectly referenced in paragraph (k),

[[Page 13387]]

``Related Information,'' of the proposed AD as Canadian AD CF-2011-
24R1, effective May 21, 2015.
    We agree that paragraph (k)(1) of this AD should refer to Canadian 
AD CF-2011-14R1, effective May 21, 2015. We have revised paragraph 
(k)(1) of this AD accordingly.

Conclusion

    We reviewed the available data, including 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 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.

Related Service Information Under 1 CFR Part 51

    Bombardier, Inc. has issued the following service information.
     Bombardier Service Bulletin 84-32-105, Revision A, dated 
April 24, 2015. This service information describes procedures for 
reworking and reorienting the retraction actuators (ModSum 4-902327).
     Bombardier Service Bulletin 84-32-106, Revision B, dated 
June 18, 2015. This service information describes procedures for 
reworking and installing reconfigured hydraulic tube assemblies for the 
retraction actuators (ModSum 4-902418).
    Goodrich Aerospace Canada Ltd. has issued the following service 
information.
     Goodrich Service Bulletin 46550-32-99 R2, dated February 
19, 2015. This service information describes procedures for reworking 
and reorienting the retraction actuators.
     Goodrich Service Bulletin 46455-32-100 R1, dated March 20, 
2013. This service information describes procedures for reworking and 
installing reconfigured hydraulic tube assemblies for the retraction 
actuators.
    These service bulletins contain different requirements and must be 
accomplished at the same time. 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 82 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on U.S.
              Action                    Labor cost        Parts cost    Cost per product          operators
----------------------------------------------------------------------------------------------------------------
Inspection (retained action from   1 work-hour x $85              $0  $85 per inspection    $6,970 per
 AD 2012-08-11).                    per hour = $85 per                 cycle.                inspection cycle.
                                    inspection cycle.
Reorient MLG retraction actuators  4 work-hours x $85              0  $340................  $27,880.
 (new action).                      per hour = $340.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that will be required based on the results of the required inspection. 
We have no way of determining the number of aircraft that might need 
this replacement:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                       Cost per
                    Action                                    Labor cost                 Parts cost    product
----------------------------------------------------------------------------------------------------------------
Replace the retract port flexible hose          4 work-hours x $85 per hour = $340....         $713       $1,053
 (retained action from AD
 2012[dash]08[dash]11).
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this AD may be 
covered under warranty, thereby reducing the cost impact on affected 
individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

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:

[[Page 13388]]

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 removing Airworthiness Directive (AD) 
2012-08-11, Amendment 39-17028 (77 FR 24351, April 24, 2012), and 
adding the following new AD:

2017-05-11 Bombardier, Inc.: Amendment 39-18822; Docket No. FAA-
2016-8183; Directorate Identifier 2015-NM-083-AD.

(a) Effective Date

    This AD is effective April 17, 2017.

(b) Affected ADs

    This AD replaces AD 2012-08-11, Amendment 39-17028 (77 FR 24351, 
April 24, 2012) (``AD 2012-08-11'').

(c) Applicability

    This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes, certificated in any category, serial numbers 4001 
through 4424 inclusive.

(d) Subject

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

(e) Reason

    This AD was prompted by test reports that showed that failure of 
a retract port flexible hose of a main landing gear (MLG) retraction 
actuator could cause excessive hydraulic fluid leakage. We are 
issuing this AD to prevent hydraulic fluid leakage in the event of a 
retract port flexible hose failure; this condition could lead to an 
undamped extension of the MLG and could result in MLG structural 
failure, leading to an unsafe asymmetric landing configuration.

(f) Compliance

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

(g) Retained Repetitive Inspections and Follow-on Action, With New 
Reference

    This paragraph restates the requirements of paragraph (g) of AD 
2012-08-11, with new reference to terminating action. Within 600 
flight hours after May 29, 2012 (the effective date of AD 2012-08-
11), do a detailed inspection for defects and damage of the retract 
port flexible hose of the left and right MLG retraction actuators, 
in accordance with the Accomplishment Instructions of Bombardier 
Service Bulletin 84-32-89, dated March 22, 2011. Repeat the 
inspection thereafter at intervals not to exceed 600 flight hours. 
If any defect or damage is found, before further flight, replace the 
retract port flexible hose with a new or serviceable retract port 
flexible hose, in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 84-32-89, dated March 22, 2011. Doing 
the actions required by paragraph (h) of this AD terminates the 
inspections required by this paragraph.

(h) New Requirement of This AD: Reorient MLG Retraction Actuators

    Within 6,000 flight hours or 36 months, whichever occurs first 
after the effective date of this AD: Reorient the MLG retraction 
actuator by incorporating Bombardier Modification Summaries 4-902418 
and 4-902327, in accordance with the Accomplishment Instructions of 
the applicable service information specified in paragraphs (h)(1) 
and (h)(2) of this AD. Accomplishment of the actions required by 
this paragraph terminates the actions required by paragraph (g) of 
this AD.
    (1) Bombardier Service Bulletin 84-32-105, Revision A, dated 
April 24, 2015; and Goodrich Service Bulletin 46550-32-99 R2, dated 
February 19, 2015.
    (2) Bombardier Service Bulletin 84-32-106, Revision B, dated 
June 18, 2015; and Goodrich Service Bulletin 46455-32-100 R1, dated 
March 20, 2013.

(i) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(h) of this AD, if those actions were performed before the effective 
date of this AD using the service information identified in 
paragraph (i)(1), (i)(2), or (i)(3) of this AD, as applicable.
    (1) Bombardier Service Bulletin 84-32-105, dated September 28, 
2012.
    (2) Bombardier Service Bulletin 84-32-106, dated September 10, 
2012.
    (3) Bombardier Service Bulletin 84-32-106, Revision A, dated 
April 24, 2015.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office (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 New York 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.
    (i) 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.
    (ii) AMOCs approved previously for AD 2012-08-11 are approved as 
AMOCs for the corresponding provisions of this AD.
    (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 Transport Canada Civil Aviation (TCCA); or 
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2011-14R1, dated May 21, 2015, 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-2016-8183.
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (l)(4), (l)(5), and (l)(6) of this AD.

(l) 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 Service Bulletin 84-32-105, Revision A, dated 
April 24, 2015.
    (ii) Bombardier Service Bulletin 84-32-106, Revision B, dated 
June 18, 2015.
    (iii) Goodrich Service Bulletin 46550-32-99 R2, dated February 
19, 2015.
    (iv) Goodrich Service Bulletin 46455-32-100 R1, dated March 20, 
2013.
    (3) The following service information was approved for IBR on 
May 29, 2012 (77 FR 24351, April 24, 2012).
    (i) Bombardier Service Bulletin 84-32-89, dated March 22, 2011.
    (ii) Reserved.
    (4) 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.
    (5) For Goodrich service information identified in this AD, 
contact Goodrich Aerospace Canada Ltd., Landing Systems, 1400 South 
Service Road, West Oakville, ON, Canada L6L 5Y7; telephone +1-877-
808-7575; fax: +1-905-825-6320; email: crc@utas.utc.com; Internet: 
https://techpubs.goodrich.com/ContactUs.
    (6) 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.
    (7) 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 February 28, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-04514 Filed 3-10-17; 8:45 am]
 BILLING CODE 4910-13-P
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