Airworthiness Directives; Bombardier, Inc., Airplanes, 58062-58066 [2019-23529]

Download as PDF 58062 Federal Register / Vol. 84, No. 210 / Wednesday, October 30, 2019 / Proposed Rules The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ Airbus SAS: Docket No. FAA–2019–0721; Product Identifier 2019–NM–150–AD. (a) Comments Due Date The FAA must receive comments by December 16, 2019. (b) Affected ADs None. (c) Applicability This AD applies to Airbus SAS Model A350–941 and –1041 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2019–0210, dated August 26, 2019 (‘‘EASA AD 2019–0210’’). (d) Subject Air Transport Association (ATA) of America Code 35, Oxygen. (e) Reason This AD was prompted by a report that during inspection of the installation of oxygen containers, certain fasteners of the oxygen containers and adjacent panels in the passenger supply channels (PSCs) were found damaged or unlocked; which could result in insufficient clearance between the oxygen container and adjacent panels. The FAA is issuing this AD to address this condition, which could prevent the opening of the oxygen containers and result in failure of the oxygen masks to deploy and provide supplemental oxygen in case of an in-flight decompression, possibly resulting in injury to cabin occupants. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2019–0210. (h) Exceptions to EASA AD 2019–0210 (1) Where EASA AD 2019–0210 refers to its effective date, this AD requires using the effective date of this AD. (2) The ‘‘Remarks’’ section of EASA AD 2019–0210 does not apply to this AD. VerDate Sep<11>2014 16:25 Oct 29, 2019 Jkt 250001 (i) No Reporting Requirement Although the service information referenced in EASA AD 2019–0210 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (j) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Section, Transport Standards Branch, 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 Section, send it to the attention of the person identified in paragraph (k)(2) of this AD. Information may be emailed to: 9-ANM-116-AMOCREQUESTS@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 instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Section, Transport Standards Branch, FAA; or EASA; or Airbus SAS’s EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOAauthorized signature. (3) Required for Compliance (RC): For any service information referenced in EASA AD 2019–0210 that contains RC procedures and tests: RC 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. (k) Related Information (1) For information about EASA AD 2019– 0210, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 89990 6017; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this EASA AD on the EASA website at https://ad.easa.europa.eu. You may view this EASA AD at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. EASA AD 2019–0210 may be found in the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2019–0721. (2) For more information about this AD, contact Kathleen Arrigotti, Aerospace Engineer, International Section, Transport PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206–231–3218. Issued in Des Moines, Washington, on October 22, 2019. Dionne Palermo, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2019–23530 Filed 10–29–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2019–0720; Product Identifier 2019–NM–117–AD] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc., Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to supersede Airworthiness Directive (AD) 2003–09–04 R1, which applies to certain Bombardier, Inc., Model CL– 600–2B19 (Regional Jet series 100 & 440) airplanes. AD 2003–09–04 R1 requires revising the airworthiness limitations for certain structural inspections; repair if necessary; and submission of inspection findings to the airplane manufacturer. Since the FAA issued AD 2003–09–04 R1, the agency determined that additional airplanes are affected, that new or more restrictive airworthiness limitations are necessary, and that the compliance time must be revised to include a phase-in time for certain tasks. This proposed AD would revise the applicability to include additional airplanes; revise certain compliance times; and require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by December 16, 2019. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– SUMMARY: E:\FR\FM\30OCP1.SGM 30OCP1 Federal Register / Vol. 84, No. 210 / Wednesday, October 30, 2019 / Proposed Rules 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Bombardier, Inc., 200 Coˆte-Vertu Road West, Dorval, Que´bec H4S 2A3, Canada; North America toll-free telephone 1–866–538– 1247 or direct-dial telephone 1–514– 855–2999; email ac.yul@ aero.bombardier.com; internet http:// www.bombardier.com. You may view this referenced service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231– 3195. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations .gov by searching for and locating Docket No. FAA–2019–0720; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516– 228–7330; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2019–0720; Product Identifier 2019–NM–117–AD’’ at the beginning of your comments. The agency specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. The FAA will consider all comments received by the closing date and may amend this proposed AD based on those comments. The FAA will post all comments received, without change, to http:// www.regulations.gov, including any personal information you provide. The VerDate Sep<11>2014 16:25 Oct 29, 2019 Jkt 250001 agency will also post a report summarizing each substantive verbal contact received about this proposed AD. Discussion The FAA issued AD 2003–09–04 R1, Amendment 39–13305 (68 FR 54985, September 22, 2003) (‘‘AD 2003–09–04 R1’’), for certain Bombardier Model CL– 600–2B19 (Regional Jet series 100 & 440) airplanes. (AD 2003–09–04 R1 revised AD 2003–09–04, Amendment 39–13133 (68 FR 22587, April 29, 2003).) AD 2003–09–04 R1 requires revising the airworthiness limitations section of the Instructions for Continued Airworthiness to incorporate new structural inspection intervals for the pressure floor skin of the center fuselage at fuselage stations 460 and 513; repair if necessary; and submission of inspection findings to the airplane manufacturer. AD 2003–09–04 R1 resulted from a report of fatigue cracks on the pressure floor skin of the center fuselage at fuselage stations 460 and 513. The FAA issued AD 2003–09–04 R1 to address fatigue cracks of the pressure floor skin of the center fuselage at fuselage stations 460 and 513, which could result in failure of the pressure floor skin and consequent rapid decompression of the airplane during flight. Actions Since AD 2003–09–04 R1 Was Issued Since the FAA issued AD 2003–09–04 R1, the agency has determined that the applicability must be revised to include additional airplane serial numbers, that new or more restrictive airworthiness limitations are necessary, and that the compliance time must be revised to include a phase-in time for certain airworthiness limitations tasks. Transport Canada Civil Aviation (TCCA), which is the civil aviation authority for Canada, has issued Canadian AD CF–2002–39R2, dated August 15, 2019 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for certain Bombardier Model CL–600– 2B19 (Regional Jet series 100 & 440) airplanes. This proposed AD was prompted by a report of fatigue cracks on the pressure floor skin of the center fuselage at fuselage stations 460 and 513. The FAA is proposing this AD to address such fatigue cracks, which could result in failure of the pressure floor skin and consequent rapid decompression of the airplane during flight. See the MCAI for additional background information. PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 58063 Related Service Information Under 1 CFR Part 51 Bombardier has issued Bombardier CL–600–2B19 Temporary Revision 2B– 2265, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual; and Bombardier CL–600–2B19 Temporary Revision 2B– 2266, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual. These temporary revisions describe airworthiness limitations for inspections of the pressure floor skin. These documents are distinct since they describe different airworthiness limitations. 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. FAA’s Determination This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to the FAA’s bilateral agreement with the State of Design Authority, the agency has been notified of the unsafe condition described in the MCAI and service information referenced above. The FAA is proposing this AD because the agency evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop on other products of the same type design. Proposed Requirements of This NPRM This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD requires revisions to certain operator maintenance documents to include new actions (e.g., inspections). Compliance with these actions is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by this proposed AD, the operator may not be able to accomplish the actions described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (k)(1) of this proposed AD. The request should include a description of changes to the required actions that will ensure the continued damage tolerance of the affected structure. E:\FR\FM\30OCP1.SGM 30OCP1 58064 Federal Register / Vol. 84, No. 210 / Wednesday, October 30, 2019 / Proposed Rules Differences Between This Proposed AD and the MCAI or Service Information The MCAI specifies that if there are findings from the airworthiness limitations section (ALS) inspection tasks, corrective actions must be accomplished in accordance with Bombardier maintenance documentation. However, this proposed AD does not include that requirement. Operators of U.S.-registered airplanes are required by general airworthiness and operational regulations to perform maintenance using methods that are acceptable to the FAA. The FAA considers those methods to be adequate to address any corrective actions necessitated by the findings of ALS inspections required by this proposed AD. Costs of Compliance The FAA estimates that this proposed AD would affect 37 airplanes of U.S. registry. The FAA has determined that revising the maintenance or inspection program takes an average of 90 work-hours per operator, although the agency recognizes that this number may vary from operator to operator. In the past, the agency has estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, the agency estimates the average total cost per operator to be $7,650 (90 work-hours × $85 per work-hour). 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. The FAA is 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. VerDate Sep<11>2014 16:25 Oct 29, 2019 Jkt 250001 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. This proposed AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes and associated appliances to the Director of the System Oversight Division. Regulatory Findings The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 this proposed regulation: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) 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. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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 [Amended] 2. The FAA amends § 39.13 by removing Airworthiness Directive (AD) ■ PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 2003–09–04 R1, Amendment 39–13305 (68 FR 54985, September 22, 2003), and adding the following new AD: Bombardier, Inc.: Docket No. FAA–2019– 0720; Product Identifier 2019–NM–117– AD. (a) Comments Due Date The FAA must receive comments by December 16, 2019. (b) Affected ADs This AD replaces AD 2003–09–04 R1, Amendment 39–13305 (68 FR 54985, September 22, 2003) (‘‘AD 2003–09–04 R1’’). (c) Applicability This AD applies to Bombardier Model CL– 600–2B19 (Regional Jet series 100 & 440) airplanes, certificated in any category, serial numbers 7003 through 8999 inclusive. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Reason This AD was prompted by a report of cracks occurring on the pressure floor skin at fuselage stations (FS) 460 and 513. The FAA is issuing this AD to address such fatigue cracks, which could result in failure of the pressure floor skin and consequent rapid decompression of the airplane during flight. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Maintenance Program Revision for Serial Numbers 7003 Through 8079 For airplane serial numbers 7003 through 8079 inclusive: Within 30 days from the effective date this AD, revise the existing maintenance or inspection program, as applicable, by incorporating the information specified in Airworthiness Limitations (AWL) task number 53–41–149 of Bombardier CL–600–2B19 Temporary Revision 2B–2265, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual. (1) The initial compliance time for doing the task is at the time specified in figure 1 to paragraph (g) of this AD, or within 90 days after the effective date of this AD, whichever occurs later. (2) For airplanes on which Bombardier Service Bulletin 601R–53–067, Bombardier Service Bulletin 601R–53–077, and AWL task number 53–41–194 have been done, the inspections in AWL task number 53–41–149 are not required in the areas covered by doublers at FS460 and FS513. E:\FR\FM\30OCP1.SGM 30OCP1 Federal Register / Vol. 84, No. 210 / Wednesday, October 30, 2019 / Proposed Rules (h) Maintenance Program Revision for Serial Numbers 8080 Through 8999 (1) For airplane serial numbers 8080 through 8999 inclusive: Within 30 days from the effective date of this AD, revise the existing maintenance or inspection program, as applicable, by incorporating the information specified in AWL task number 53–41–193 of Bombardier CL–600–2B19 Temporary Revision 2B–2266, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual. Except as specified in paragraph (h)(2) of this AD, the initial compliance time for doing the task is at the time specified in Bombardier CL– 600–2B19 Temporary Revision 2B–2266, dated July 19, 2018, to Appendix B— Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual, or within 90 days after the effective date of this AD, whichever occurs later VerDate Sep<11>2014 16:25 Oct 29, 2019 Jkt 250001 (2) For airplanes that were previously inspected using AWL task number 53–41– 149, perform inspection in AWL task number 53–41–193 within 10,000 flight cycles from the previously accomplished inspection. (i) Corrective Actions If any crack is found during any inspection required by this AD, before further flight, do the actions specified in paragraphs (i)(1) and (2) of this AD. (1) Repair using a method approved by the Manager, New York ACO Branch, 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 DAOauthorized signature. (2) Revise the existing maintenance or inspection program, as applicable, by inserting a copy of the new airworthiness limitation and inspection requirements associated with the repair approved by the FAA, TCCA, or DAO specified in paragraph (i)(1) of this AD into Bombardier CL–600– 2B19 Temporary Revision 2B–2265, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual; or Bombardier CL–600–2B19 Temporary Revision 2B–2266, dated July 19, 2018, to Appendix B—Airworthiness Limitations, of Part 2 of the Bombardier Maintenance Requirements Manual; as applicable. PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 (j) No Alternative Actions or Intervals After the maintenance or inspection program has been revised as required by paragraphs (g), (h), and (i)(2) of this AD, as applicable, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an AMOC in accordance with the procedures specified in paragraph (k)(1) of this AD. (k) Other FAA AD Provisions (1) Alternative Methods of Compliance (AMOCs): The Manager, New York ACO Branch, 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 manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 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 2003–09–04 R1 are approved as AMOCs for the corresponding provisions of this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective E:\FR\FM\30OCP1.SGM 30OCP1 EP30OC19.000</GPH> (3) For airplanes on which the initial inspection has been accomplished at 18,325 or more total flight cycles, and no cracks were found, as of October 7, 2003 (the effective date of AD 2003–09–04), the repetitive interval of 10,000 flight cycles starts from the completion date of the initial inspection. (4) For airplanes that were previously inspected using AWL task number 53–41– 193, perform inspection in AWL task number 53–41–149 within 10,000 flight cycles from the previously accomplished inspection. 58065 58066 Federal Register / Vol. 84, No. 210 / Wednesday, October 30, 2019 / Proposed Rules actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or TCCA; or Bombardier, Inc.’s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature. (l) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF–2002–39R2, dated August 15, 2019, for related information. This MCAI may be found in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2019–0720. (2) For more information about this AD, contact Andrea Jimenez, Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7330; fax 516–794–5531; email 9-avs-nyaco-cos@faa.gov. (3) For service information identified in this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que´bec H4S 1Y9, Canada; Widebody Customer Response Center North America toll-free telephone 1– 866–538–1247 or direct-dial telephone 1– 514–855–2999; fax 514–855–7401; email ac.yul@aero.bombardier.com; Internet http:// www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. Issued in Des Moines, Washington, on October 22, 2019. Dionne Palermo, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2019–23529 Filed 10–29–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2019–0726; Product Identifier 2019–NM–102–AD] RIN 2120–AA64 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC–8–400 series airplanes. This proposed AD was prompted by reports of wear on fuel couplings, bonding springs, and sleeves as well as fuel tube end ferrules and fuel SUMMARY: VerDate Sep<11>2014 16:25 Oct 29, 2019 Jkt 250001 component end ferrules. This proposed AD would require repetitive inspections of certain parts for discrepancies that meet specified criteria, and replacement as necessary; repetitive inspections of certain parts for damage and wear, and rework of parts; and electrical bonding checks of certain couplings. This proposed AD would also require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. For certain airplanes, this proposed AD would allow a modification that would terminate the repetitive inspections. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by December 16, 2019. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact De Havilland Aircraft of Canada Ltd., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416–375–4000; fax 416–375–4539; email thd@ dehavilland.com; internet https:// dehavilland.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. Examining the AD Docket You may examine the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2019– 0726; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations is listed above. Comments will be available in the AD docket shortly after receipt. PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aerospace Engineer, Airframe and Propulsion Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7366; fax 516–794–5531; email 9-avs-nyaco-cos@ faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2019–0726; Product Identifier 2019–NM–102–AD’’ at the beginning of your comments. The FAA specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. The FAA will consider all comments received by the closing date and may amend this NPRM because of those comments. The FAA will post all comments received, without change, to http:// www.regulations.gov, including any personal information you provide. The FAA will also post a report summarizing each substantive verbal contact received about this NPRM. Discussion Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF–2017–04R2, dated September 25, 2018 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for certain De Havilland Aircraft of Canada Limited Model DHC–8–400 series airplanes. The FAA has received reports of wear on fuel couplings, bonding springs, and sleeves as well as fuel tube end ferrules and fuel component end ferrules. The FAA is proposing this AD to address such wear, which could reduce the integrity of the electrical bonding paths through the fuel line and components, and ultimately lead to fuel tank ignition in the event of a lightning strike. See the MCAI for more information. The FAA issued a related NPRM that proposed to amend 14 CFR part 39 by adding an AD that would apply to certain Bombardier, Inc., Model DHC– 8–400 series airplanes. The related NPRM published in the Federal Register on July 6, 2018 (83 FR 31488). The related NPRM was also prompted by reports of wear on fuel couplings, bonding springs, and sleeves as well as fuel tube end ferrules and fuel component end ferrules. Since the E:\FR\FM\30OCP1.SGM 30OCP1

Agencies

[Federal Register Volume 84, Number 210 (Wednesday, October 30, 2019)]
[Proposed Rules]
[Pages 58062-58066]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-23529]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0720; Product Identifier 2019-NM-117-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 
2003-09-04 R1, which applies to certain Bombardier, Inc., Model CL-600-
2B19 (Regional Jet series 100 & 440) airplanes. AD 2003-09-04 R1 
requires revising the airworthiness limitations for certain structural 
inspections; repair if necessary; and submission of inspection findings 
to the airplane manufacturer. Since the FAA issued AD 2003-09-04 R1, 
the agency determined that additional airplanes are affected, that new 
or more restrictive airworthiness limitations are necessary, and that 
the compliance time must be revised to include a phase-in time for 
certain tasks. This proposed AD would revise the applicability to 
include additional airplanes; revise certain compliance times; and 
require revising the existing maintenance or inspection program, as 
applicable, to incorporate new or more restrictive airworthiness 
limitations. The FAA is proposing this AD to address the unsafe 
condition on these products.

DATES: The FAA must receive comments on this proposed AD by December 
16, 2019.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-

[[Page 58063]]

30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue 
SE, Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact 
Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 2A3, Canada; North America toll-free telephone 1-866-538-1247 or 
direct-dial telephone 1-514-855-2999; email [email protected]; 
internet http://www.bombardier.com. You may view this referenced 
service information at the FAA, Transport Standards Branch, 2200 South 
216th St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations .gov by searching for and locating Docket No. FAA-2019-
0720; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations is listed above. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer, 
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7330; 
fax 516-794-5531; email [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2019-0720; 
Product Identifier 2019-NM-117-AD'' at the beginning of your comments. 
The agency specifically invites comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. The 
FAA will consider all comments received by the closing date and may 
amend this proposed AD based on those comments.
    The FAA will post all comments received, without change, to http://www.regulations.gov, including any personal information you provide. 
The agency will also post a report summarizing each substantive verbal 
contact received about this proposed AD.

Discussion

    The FAA issued AD 2003-09-04 R1, Amendment 39-13305 (68 FR 54985, 
September 22, 2003) (``AD 2003-09-04 R1''), for certain Bombardier 
Model CL-600-2B19 (Regional Jet series 100 & 440) airplanes. (AD 2003-
09-04 R1 revised AD 2003-09-04, Amendment 39-13133 (68 FR 22587, April 
29, 2003).) AD 2003-09-04 R1 requires revising the airworthiness 
limitations section of the Instructions for Continued Airworthiness to 
incorporate new structural inspection intervals for the pressure floor 
skin of the center fuselage at fuselage stations 460 and 513; repair if 
necessary; and submission of inspection findings to the airplane 
manufacturer. AD 2003-09-04 R1 resulted from a report of fatigue cracks 
on the pressure floor skin of the center fuselage at fuselage stations 
460 and 513. The FAA issued AD 2003-09-04 R1 to address fatigue cracks 
of the pressure floor skin of the center fuselage at fuselage stations 
460 and 513, which could result in failure of the pressure floor skin 
and consequent rapid decompression of the airplane during flight.

Actions Since AD 2003-09-04 R1 Was Issued

    Since the FAA issued AD 2003-09-04 R1, the agency has determined 
that the applicability must be revised to include additional airplane 
serial numbers, that new or more restrictive airworthiness limitations 
are necessary, and that the compliance time must be revised to include 
a phase-in time for certain airworthiness limitations tasks.
    Transport Canada Civil Aviation (TCCA), which is the civil aviation 
authority for Canada, has issued Canadian AD CF-2002-39R2, dated August 
15, 2019 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Bombardier Model CL-600-2B19 (Regional Jet series 
100 & 440) airplanes.
    This proposed AD was prompted by a report of fatigue cracks on the 
pressure floor skin of the center fuselage at fuselage stations 460 and 
513. The FAA is proposing this AD to address such fatigue cracks, which 
could result in failure of the pressure floor skin and consequent rapid 
decompression of the airplane during flight. See the MCAI for 
additional background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued Bombardier CL-600-2B19 Temporary Revision 2B-
2265, dated July 19, 2018, to Appendix B--Airworthiness Limitations, of 
Part 2 of the Bombardier Maintenance Requirements Manual; and 
Bombardier CL-600-2B19 Temporary Revision 2B-2266, dated July 19, 2018, 
to Appendix B--Airworthiness Limitations, of Part 2 of the Bombardier 
Maintenance Requirements Manual. These temporary revisions describe 
airworthiness limitations for inspections of the pressure floor skin. 
These documents are distinct since they describe different 
airworthiness limitations.
    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.

FAA's Determination

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to the FAA's bilateral agreement with the State of Design Authority, 
the agency has been notified of the unsafe condition described in the 
MCAI and service information referenced above. The FAA is proposing 
this AD because the agency evaluated all the relevant information and 
determined the unsafe condition described previously is likely to exist 
or develop on other products of the same type design.

Proposed Requirements of This NPRM

    This proposed AD would require revising the existing maintenance or 
inspection program, as applicable, to incorporate new or more 
restrictive airworthiness limitations.
    This AD requires revisions to certain operator maintenance 
documents to include new actions (e.g., inspections). Compliance with 
these actions is required by 14 CFR 91.403(c). For airplanes that have 
been previously modified, altered, or repaired in the areas addressed 
by this proposed AD, the operator may not be able to accomplish the 
actions described in the revisions. In this situation, to comply with 
14 CFR 91.403(c), the operator must request approval for an alternative 
method of compliance according to paragraph (k)(1) of this proposed AD. 
The request should include a description of changes to the required 
actions that will ensure the continued damage tolerance of the affected 
structure.

[[Page 58064]]

Differences Between This Proposed AD and the MCAI or Service 
Information

    The MCAI specifies that if there are findings from the 
airworthiness limitations section (ALS) inspection tasks, corrective 
actions must be accomplished in accordance with Bombardier maintenance 
documentation. However, this proposed AD does not include that 
requirement. Operators of U.S.-registered airplanes are required by 
general airworthiness and operational regulations to perform 
maintenance using methods that are acceptable to the FAA. The FAA 
considers those methods to be adequate to address any corrective 
actions necessitated by the findings of ALS inspections required by 
this proposed AD.

Costs of Compliance

    The FAA estimates that this proposed AD would affect 37 airplanes 
of U.S. registry.
    The FAA has determined that revising the maintenance or inspection 
program takes an average of 90 work-hours per operator, although the 
agency recognizes that this number may vary from operator to operator. 
In the past, the agency has estimated that this action takes 1 work-
hour per airplane. Since operators incorporate maintenance or 
inspection program changes for their affected fleet(s), the FAA has 
determined that a per-operator estimate is more accurate than a per-
airplane estimate. Therefore, the agency estimates the average total 
cost per operator to be $7,650 (90 work-hours x $85 per work-hour).

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.
    The FAA is 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.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes and associated appliances to the 
Director of the System Oversight Division.

Regulatory Findings

    The FAA determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Will not affect intrastate aviation in Alaska, and
    (3) 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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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 removing Airworthiness Directive (AD) 
2003-09-04 R1, Amendment 39-13305 (68 FR 54985, September 22, 2003), 
and adding the following new AD:

Bombardier, Inc.: Docket No. FAA-2019-0720; Product Identifier 2019-
NM-117-AD.

(a) Comments Due Date

    The FAA must receive comments by December 16, 2019.

(b) Affected ADs

    This AD replaces AD 2003-09-04 R1, Amendment 39-13305 (68 FR 
54985, September 22, 2003) (``AD 2003-09-04 R1'').

(c) Applicability

    This AD applies to Bombardier Model CL-600-2B19 (Regional Jet 
series 100 & 440) airplanes, certificated in any category, serial 
numbers 7003 through 8999 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Reason

    This AD was prompted by a report of cracks occurring on the 
pressure floor skin at fuselage stations (FS) 460 and 513. The FAA 
is issuing this AD to address such fatigue cracks, which could 
result in failure of the pressure floor skin and consequent rapid 
decompression of the airplane during flight.

(f) Compliance

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

(g) Maintenance Program Revision for Serial Numbers 7003 Through 8079

    For airplane serial numbers 7003 through 8079 inclusive: Within 
30 days from the effective date this AD, revise the existing 
maintenance or inspection program, as applicable, by incorporating 
the information specified in Airworthiness Limitations (AWL) task 
number 53-41-149 of Bombardier CL-600-2B19 Temporary Revision 2B-
2265, dated July 19, 2018, to Appendix B--Airworthiness Limitations, 
of Part 2 of the Bombardier Maintenance Requirements Manual.
    (1) The initial compliance time for doing the task is at the 
time specified in figure 1 to paragraph (g) of this AD, or within 90 
days after the effective date of this AD, whichever occurs later.
    (2) For airplanes on which Bombardier Service Bulletin 601R-53-
067, Bombardier Service Bulletin 601R-53-077, and AWL task number 
53-41-194 have been done, the inspections in AWL task number 53-41-
149 are not required in the areas covered by doublers at FS460 and 
FS513.

[[Page 58065]]

[GRAPHIC] [TIFF OMITTED] TP30OC19.000

    (3) For airplanes on which the initial inspection has been 
accomplished at 18,325 or more total flight cycles, and no cracks 
were found, as of October 7, 2003 (the effective date of AD 2003-09-
04), the repetitive interval of 10,000 flight cycles starts from the 
completion date of the initial inspection.
    (4) For airplanes that were previously inspected using AWL task 
number 53-41-193, perform inspection in AWL task number 53-41-149 
within 10,000 flight cycles from the previously accomplished 
inspection.

(h) Maintenance Program Revision for Serial Numbers 8080 Through 8999

    (1) For airplane serial numbers 8080 through 8999 inclusive: 
Within 30 days from the effective date of this AD, revise the 
existing maintenance or inspection program, as applicable, by 
incorporating the information specified in AWL task number 53-41-193 
of Bombardier CL-600-2B19 Temporary Revision 2B-2266, dated July 19, 
2018, to Appendix B--Airworthiness Limitations, of Part 2 of the 
Bombardier Maintenance Requirements Manual. Except as specified in 
paragraph (h)(2) of this AD, the initial compliance time for doing 
the task is at the time specified in Bombardier CL-600-2B19 
Temporary Revision 2B-2266, dated July 19, 2018, to Appendix B--
Airworthiness Limitations, of Part 2 of the Bombardier Maintenance 
Requirements Manual, or within 90 days after the effective date of 
this AD, whichever occurs later
    (2) For airplanes that were previously inspected using AWL task 
number 53-41-149, perform inspection in AWL task number 53-41-193 
within 10,000 flight cycles from the previously accomplished 
inspection.

(i) Corrective Actions

    If any crack is found during any inspection required by this AD, 
before further flight, do the actions specified in paragraphs (i)(1) 
and (2) of this AD.
    (1) Repair using a method approved by the Manager, New York ACO 
Branch, 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.
    (2) Revise the existing maintenance or inspection program, as 
applicable, by inserting a copy of the new airworthiness limitation 
and inspection requirements associated with the repair approved by 
the FAA, TCCA, or DAO specified in paragraph (i)(1) of this AD into 
Bombardier CL-600-2B19 Temporary Revision 2B-2265, dated July 19, 
2018, to Appendix B--Airworthiness Limitations, of Part 2 of the 
Bombardier Maintenance Requirements Manual; or Bombardier CL-600-
2B19 Temporary Revision 2B-2266, dated July 19, 2018, to Appendix 
B--Airworthiness Limitations, of Part 2 of the Bombardier 
Maintenance Requirements Manual; as applicable.

(j) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised as 
required by paragraphs (g), (h), and (i)(2) of this AD, as 
applicable, no alternative actions (e.g., inspections) or intervals 
may be used unless the actions or intervals are approved as an AMOC 
in accordance with the procedures specified in paragraph (k)(1) of 
this AD.

(k) Other FAA AD Provisions

    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO Branch, 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 manager of the certification 
office, send it to ATTN: Program Manager, Continuing Operational 
Safety, FAA, New York ACO Branch, 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 2003-09-04 R1 are approved 
as AMOCs for the corresponding provisions of this AD.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective

[[Page 58066]]

actions from a manufacturer, the action must be accomplished using a 
method approved by the Manager, New York ACO Branch, FAA; or TCCA; 
or Bombardier, Inc.'s TCCA DAO. If approved by the DAO, the approval 
must include the DAO-authorized signature.

(l) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2002-39R2, dated August 15, 2019, for related 
information. This MCAI may be found in the AD docket on the internet 
at http://www.regulations.gov by searching for and locating Docket 
No. FAA-2019-0720.
    (2) For more information about this AD, contact Andrea Jimenez, 
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7330; fax 516-794-5531; email [email protected].
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; Widebody Customer Response Center 
North America toll-free telephone 1-866-538-1247 or direct-dial 
telephone 1-514-855-2999; fax 514-855-7401; email 
[email protected]; Internet http://www.bombardier.com. You 
may view this service information at the FAA, Transport Standards 
Branch, 2200 South 216th St., Des Moines, WA. For information on the 
availability of this material at the FAA, call 206-231-3195.

    Issued in Des Moines, Washington, on October 22, 2019.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2019-23529 Filed 10-29-19; 8:45 am]
BILLING CODE 4910-13-P