Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes, 87331-87334 [2023-27680]

Download as PDF Federal Register / Vol. 88, No. 241 / Monday, December 18, 2023 / Rules and Regulations the FAA amends 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ 2023–24–01 Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.): Amendment 39–22617; Docket No. FAA–2023–2229; Project Identifier MCAI–2023–00736–T. (a) Effective Date This airworthiness directive (AD) is effective January 2, 2024. (b) Affected ADs None. (c) Applicability This AD applies to Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD–500– 1A10 and BD–500–1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF–2023–39, dated June 6, 2023 (Transport Canada AD CF– 2023–39). (d) Subject Air Transport Association (ATA) of America Code 28, Fuel. (e) Unsafe Condition This AD was prompted by a reported interference between the pilot valve fittings and their mating holes in the rear spar of the center wing box. The FAA is issuing this AD to address fitting failure, which could lead to a failure of its shroud attachment and subsequent fuel leak into the area behind the rear spar and into the landing gear bay. Such significant fuel leak, combined with a potential ignition source such as a failure of a bleed duct or a failure of wires/connectors in these areas, could create a fire hazard on the airplane. khammond on DSKJM1Z7X2PROD with RULES (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, Transport Canada AD CF– 2023–39. (h) Exception to Transport Canada AD CF– 2023–39 Where Transport Canada AD CF–2023–39 refers to its effective date, this AD requires using the effective date of this AD. VerDate Sep<11>2014 16:02 Dec 15, 2023 Jkt 262001 (i) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation 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 responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (j)(1) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@ faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards 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 Validation Branch, FAA; or Transport Canada; or Airbus Canada Limited Partnership’s Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (j) Additional Information (1) For more information about this AD, contact Gabriel Kim, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516–228– 7300; email: 9-avs-nyaco-cos@faa.gov. (2) For Airbus Canada Limited Partnership service information identified in this AD that is not incorporated by reference, contact Airbus Canada Limited Partnership, 13100 Henri-Fabre Boulevard, Mirabel, Que´bec J7N 3C6, Canada; telephone 450–476–7676; email a220_ a220world.airbus.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference 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) Transport Canada AD CF–2023–39, dated June 6, 2023. (ii) [Reserved] (3) For Transport Canada AD CF–2023–39, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888–663–3639; email TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca; website tc.canada.ca/en/aviation. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 87331 availability of this material at the FAA, call 206–231–3195. (5) You may view this material that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email fr.inspection@nara.gov, or go to: www.archives.gov/federal-register/cfr/ibrlocations.html. Issued on November 29, 2023. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–27677 Filed 12–15–23; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2023–1496; Project Identifier MCAI–2022–01059–T; Amendment 39–22619; AD 2023–24–03] RIN 2120–AA64 Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL–600–2B19 (Regional Jet Series 100 & 440); CL–600– 2C10 (Regional Jet Series 700, 701, & 702); CL–600–2C11 (Regional Jet Series 550); CL–600–2D15 (Regional Jet Series 705); CL–600–2D24 (Regional Jet Series 900); and CL–600–2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that aircraft maintenance manual (AMM) tasks and certification maintenance requirement (CMR) tasks are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive AMM and CMR tasks. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective January 22, 2024. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of January 22, 2024. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2023–1496; or in person at Docket Operations between 9 a.m. and SUMMARY: E:\FR\FM\18DER1.SGM 18DER1 87332 Federal Register / Vol. 88, No. 241 / Monday, December 18, 2023 / Rules and Regulations khammond on DSKJM1Z7X2PROD with RULES 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. Material Incorporated by Reference: • For service information identified in this final rule, contact MHI RJ Aviation Group, Customer Response Center, 3655 Ave. des GrandesTourelles, Suite 110, Boisbriand, Que´bec J7H 0E2 Canada; North America toll-free telephone 833–990–7272 or direct-dial telephone 450–990–7272; fax 514–855–8501; email thd.crj@ mhirj.com; website mhirj.com. • You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available at regulations.gov under Docket No. FAA– 2023–1496. FOR FURTHER INFORMATION CONTACT: Elizabeth Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7300; email 9-avsnyaco-cos@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all MHI RJ Aviation ULC Model CL–600–2B19 (Regional Jet Series 100 & 440); CL–600–2C10 (Regional Jet Series 700, 701, & 702); CL–600–2C11 (Regional Jet Series 550); CL–600–2D15 (Regional Jet Series 705); CL–600–2D24 (Regional Jet Series 900); and CL–600– 2E25 (Regional Jet Series 1000) airplanes. The NPRM published in the Federal Register on July 19, 2023 (88 FR 46118). The NPRM was prompted by AD CF–2022–42, dated August 8, 2022, issued by Transport Canada, which is the aviation authority for Canada (referred to after this as the MCAI). The MCAI states that operators have reported frequent flight interruptions and high lavatory smoke detector removal rates due to the frequent testing of the smoke detector self-test switch by the flight crew using unsuitable objects. The MCAI also states there is a potential dormant failure of the lavatory smoke detector if the self-test switch check is not performed in accordance with revised procedures. VerDate Sep<11>2014 16:02 Dec 15, 2023 Jkt 262001 In the NPRM, the FAA proposed to require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive AMM and CMR tasks. The FAA is issuing this AD to address a potential dormant failure of the lavatory smoke detector if the self-test switch check is not performed in accordance with revised AMM or CMR tasks. If these maintenance task changes are not implemented, and in combination with a fire in the lavatory, this may lead to a delay in the reaction time to address smoke/fire in the lavatory. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA–2023–1496. Discussion of Final Airworthiness Directive Comments The FAA received a comment from Air Line Pilots Association, International, who supported the NPRM without change. The FAA received an additional comment from MHI RJ Aviation. The following presents the comment received on the NPRM and the FAA’s response. Request To Identify Corrected Revisions MHI RJ requested that the corrected revisions for Aircraft Maintenance Manual (AMM) Tasks 26–16–00–710– 804–A01 and 26–16–00–710–803–A01 be identified as found in AMM CSP B– 001, Revision 71. The commenter stated that the Maintenance Task Card Manual (MTCM) Task Card updates were also implemented in AMM Tasks 26–16–00– 710–804–A01 and 26–16–00–710–803– A01, but references to the AMM tasks in the proposed AD do not indicate the corrected revision. The FAA agrees with the requested change since it provides a means for operators to ensure the revised maintenance tasks are included in the AMM revision they are using. Therefore, figure 1 to paragraph (h) of this AD has been changed to specify AMM Rev 68 or later approved revisions. Conclusion 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 this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA reviewed the relevant data, considered the comment received, and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 issuing this AD to address the unsafe condition on this product. Except for minor editorial changes, this AD is adopted as proposed in the NPRM. None of the changes will increase the economic burden on any operator. Related Service Information Under 1 CFR Part 51 The FAA reviewed Bombardier Temporary Revision 2A–75, dated May 28, 2020. This service information specifies new or more restrictive CMR tasks. 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 The FAA estimates that this AD affects 1,024 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: 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. 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. 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 This AD will not have federalism implications under Executive Order E:\FR\FM\18DER1.SGM 18DER1 Federal Register / Vol. 88, No. 241 / Monday, December 18, 2023 / Rules and Regulations List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ (c) Applicability This AD applies to all MHI RJ Aviation ULC (Type Certificate previously held by Bombardier, Inc.) airplanes identified in paragraphs (c)(1) through (6) of this AD, certificated in any category. (1) Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes. (2) Model CL–600–2C10 (Regional Jet Series 700, 701, & 702) airplanes. (3) Model CL–600–2C11 (Regional Jet Series 550) airplanes. (4) Model CL–600–2D15 (Regional Jet Series 705) airplanes. (5) Model CL–600–2D24 (Regional Jet Series 900) airplanes. (6) Model CL–600–2E25 (Regional Jet Series 1000) airplanes. (e) Reason This AD was prompted by a determination that new or more restrictive aircraft maintenance manual (AMM) tasks and certification maintenance requirement (CMR) tasks are necessary. The FAA is issuing this AD to address a potential dormant failure of the lavatory smoke detector if the self-test switch check is not performed in accordance (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Maintenance or Inspection Program Revision for Model CL–600–2B19 (Regional Jet Series 100 & 440) Airplanes For Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes: Within 60 days after the effective date of this AD, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in Bombardier Temporary Revision 2A–75, dated May 28, 2020. The initial compliance time is within 12 months after the effective date of this AD. (h) Maintenance or Inspection Program Revision for Other Airplanes For airplanes identified in paragraphs (c)(2) through (6) of this AD: Within 60 days after the effective date of this AD, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in Figure 1 to paragraph (h) of this AD. The initial compliance time for doing the tasks is within 12 months after the effective date of this AD. Figure 1 to Paragraph (h)—AMM task for an operational check of the lavatory smoke detector (forward and aft) Interval Limitation AMM Task Numbers (CSP B-001 Rev 68 or later approved revisions) All 3,000 flight hours 26-16-00-710-804-AO 1 26-16-00-710-803-AOl After the existing maintenance or inspection program has been revised as required by paragraph (g) or (h) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions, and intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j)(1) of this AD. khammond on DSKJM1Z7X2PROD with RULES (b) Affected ADs None. with the revised AMM or CMR tasks. If these maintenance task changes are not implemented, and in combination with a fire in the lavatory, this may lead to a delay in the reaction time to address smoke/fire in the lavatory. Effectivity (i) No Alternative Actions or Intervals (j) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. VerDate Sep<11>2014 (a) Effective Date This airworthiness directive (AD) is effective January 22, 2024. (d) Subject Air Transport Association (ATA) of America Code 26, Fire Protection. PART 39—AIRWORTHINESS DIRECTIVES § 39.13 2023–24–03 MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.): Amendment 39– 22619; Docket No. FAA–2023–1496; Project Identifier MCAI–2022–01059–T. 16:02 Dec 15, 2023 Jkt 262001 In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, International Validation Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7300. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards 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 Validation Branch, FAA; or Transport Canada; or MHI PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 RJ Aviation ULC’s Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (k) Additional Information (1) Refer to Transport Canada AD CF– 2022–42, dated August 8, 2022, for related information. This Transport Canada AD may be found in the AD docket at regulations.gov under Docket No. FAA–2023–1496. (2) For more information about this AD, contact Elizabeth Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516– 228–7300; email 9-avs-nyaco-cos@faa.gov. (l) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference E:\FR\FM\18DER1.SGM 18DER1 ER18DE23.016</GPH> 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) 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. 87333 87334 Federal Register / Vol. 88, No. 241 / Monday, December 18, 2023 / Rules and Regulations (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 to do the actions required by this AD, unless this AD specifies otherwise. (i) Bombardier Temporary Revision 2A–75, dated May 28, 2020. (ii) [Reserved] (3) For service information identified in this AD, contact MHI RJ Aviation Group, Customer Response Center, 3655 Ave. des Grandes-Tourelles, Suite 110, Boisbriand, Que´bec J7H 0E2 Canada; North America tollfree telephone 833–990–7272 or direct-dial telephone 450–990–7272; fax 514–855–8501; email thd.crj@mhirj.com; website mhirj.com. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit: www.archives.gov/federal-register/cfr/ ibr-locations or email fr.inspection@nara.gov. [Docket No. FAA–2023–1505; Project Identifier MCAI–2023–00246–T; Amendment 39–22622; AD 2023–24–05] of a certain publication listed in this AD as of January 22, 2024. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2023–1505; 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 final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. Material Incorporated by Reference: • For service information identified in this final rule, contact Bombardier Business Aircraft Customer Response Center, 400 Coˆte-Vertu Road West, Dorval, Que´bec H4S 1Y9, Canada; telephone 514–855–2999; email ac.yul@ aero.bombardier.com; website bombardier.com. • You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available at regulations.gov under Docket No. FAA– 2023–1505. FOR FURTHER INFORMATION CONTACT: Gabriel Kim, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516– 228–7300; email 9-avs-nyaco-cos@ faa.gov. RIN 2120–AA64 SUPPLEMENTARY INFORMATION: Airworthiness Directives; Bombardier, Inc., Airplanes Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Bombardier, Inc., Model CL–600–2B16 (604 Variant) airplanes. The NPRM published in the Federal Register on July 25, 2023 (88 FR 47827). The NPRM was prompted by AD CF– 2023–06, dated February 9, 2023 (referred to after this as the MCAI), issued by Transport Canada, which is the aviation authority for Canada. The MCAI states the sleeve loops on certain passenger oxygen mask lanyards were found to have improper crimping and unsealed ends. In the NPRM, the FAA proposed to require an inspection of the passenger oxygen mask lanyards and replacement of defective oxygen mask lanyards. In the NPRM, the FAA also proposed to prohibit the installation of affected parts. The FAA is issuing this AD to Issued on November 29, 2023. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–27680 Filed 12–15–23; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL–600–2B16 (604 Variant) airplanes. This AD was prompted by sleeve loops on some passenger oxygen mask lanyards that had improper crimping and unsealed ends. This AD requires an inspection of the passenger oxygen mask lanyards and replacement of defective oxygen mask lanyards. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective January 22, 2024. The Director of the Federal Register approved the incorporation by reference khammond on DSKJM1Z7X2PROD with RULES SUMMARY: VerDate Sep<11>2014 16:02 Dec 15, 2023 Jkt 262001 PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 address these defective oxygen mask lanyards, which could result in no oxygen flow to the mask during an emergency. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA–2023–1505. Discussion of Final Airworthiness Directive Comments The FAA received a comment from Bombardier. The following presents the comment received on the NPRM and the FAA’s response to the comment. Request for Removal of Certain Variants Bombardier requested that the proposed AD be revised to remove reference to 601–3A and 601–3R Variants. The commenter stated that the proposed AD only applies to Model CL– 600–2B16 (604 Variant) airplanes (Challenger 605 designation). Bombardier noted that the airplane serial numbers given in Bombardier Service Bulletin 605–35–008, dated October 28, 2022, and referenced in Transport Canada AD CF–2023–06, are all Model CL–600–2B16 (604 Variant) airplanes. The FAA agrees for the reasons provided. The FAA revised the Summary, Background, and paragraph (c) of this AD accordingly. Conclusion 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 this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA reviewed the relevant data, considered the comments received, and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on this product. Except for minor editorial changes, and any other changes described previously, this AD is adopted as proposed in the NPRM. None of the changes will increase the economic burden on any operator. Related Service Information Under 1 CFR Part 51 The FAA reviewed Bombardier Service Bulletin 605–35–008, dated October 28, 2022. This service information specifies procedures for a visual inspection of the existing passenger oxygen mask lanyards installed in the cabin or lavatory oxygen box assemblies, and replacement of the defective oxygen mask lanyards. The E:\FR\FM\18DER1.SGM 18DER1

Agencies

[Federal Register Volume 88, Number 241 (Monday, December 18, 2023)]
[Rules and Regulations]
[Pages 87331-87334]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-27680]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-1496; Project Identifier MCAI-2022-01059-T; 
Amendment 39-22619; AD 2023-24-03]
RIN 2120-AA64


Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate 
Previously Held by Bombardier, Inc.) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440); 
CL-600-2C10 (Regional Jet Series 700, 701, & 702); CL-600-2C11 
(Regional Jet Series 550); CL-600-2D15 (Regional Jet Series 705); CL-
600-2D24 (Regional Jet Series 900); and CL-600-2E25 (Regional Jet 
Series 1000) airplanes. This AD was prompted by a determination that 
aircraft maintenance manual (AMM) tasks and certification maintenance 
requirement (CMR) tasks are necessary. This AD requires revising the 
existing maintenance or inspection program, as applicable, to 
incorporate new or more restrictive AMM and CMR tasks. The FAA is 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective January 22, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of January 22, 
2024.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2023-1496; or in person at Docket Operations between 9 
a.m. and

[[Page 87332]]

5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this final rule, the mandatory continuing airworthiness 
information (MCAI), any comments received, and other information. The 
address for Docket Operations is U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE, Washington, DC 20590.
    Material Incorporated by Reference:
     For service information identified in this final rule, 
contact MHI RJ Aviation Group, Customer Response Center, 3655 Ave. des 
Grandes-Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada; 
North America toll-free telephone 833-990-7272 or direct-dial telephone 
450-990-7272; fax 514-855-8501; email mhirj.com">thd.crj@mhirj.com; website 
mhirj.com.
     You may view this service information at the FAA, 
Airworthiness Products Section, Operational Safety Branch, 2200 South 
216th St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195. It is also available at 
regulations.gov under Docket No. FAA-2023-1496.

FOR FURTHER INFORMATION CONTACT: Elizabeth Dowling, Aviation Safety 
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
telephone 516-228-7300; email [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to all MHI RJ Aviation ULC 
Model CL-600-2B19 (Regional Jet Series 100 & 440); CL-600-2C10 
(Regional Jet Series 700, 701, & 702); CL-600-2C11 (Regional Jet Series 
550); CL-600-2D15 (Regional Jet Series 705); CL-600-2D24 (Regional Jet 
Series 900); and CL-600-2E25 (Regional Jet Series 1000) airplanes. The 
NPRM published in the Federal Register on July 19, 2023 (88 FR 46118). 
The NPRM was prompted by AD CF-2022-42, dated August 8, 2022, issued by 
Transport Canada, which is the aviation authority for Canada (referred 
to after this as the MCAI). The MCAI states that operators have 
reported frequent flight interruptions and high lavatory smoke detector 
removal rates due to the frequent testing of the smoke detector self-
test switch by the flight crew using unsuitable objects. The MCAI also 
states there is a potential dormant failure of the lavatory smoke 
detector if the self-test switch check is not performed in accordance 
with revised procedures.
    In the NPRM, the FAA proposed to require revising the existing 
maintenance or inspection program, as applicable, to incorporate new or 
more restrictive AMM and CMR tasks. The FAA is issuing this AD to 
address a potential dormant failure of the lavatory smoke detector if 
the self-test switch check is not performed in accordance with revised 
AMM or CMR tasks. If these maintenance task changes are not 
implemented, and in combination with a fire in the lavatory, this may 
lead to a delay in the reaction time to address smoke/fire in the 
lavatory.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2023-1496.

Discussion of Final Airworthiness Directive

Comments

    The FAA received a comment from Air Line Pilots Association, 
International, who supported the NPRM without change.
    The FAA received an additional comment from MHI RJ Aviation. The 
following presents the comment received on the NPRM and the FAA's 
response.

Request To Identify Corrected Revisions

    MHI RJ requested that the corrected revisions for Aircraft 
Maintenance Manual (AMM) Tasks 26-16-00-710-804-A01 and 26-16-00-710-
803-A01 be identified as found in AMM CSP B-001, Revision 71. The 
commenter stated that the Maintenance Task Card Manual (MTCM) Task Card 
updates were also implemented in AMM Tasks 26-16-00-710-804-A01 and 26-
16-00-710-803-A01, but references to the AMM tasks in the proposed AD 
do not indicate the corrected revision.
    The FAA agrees with the requested change since it provides a means 
for operators to ensure the revised maintenance tasks are included in 
the AMM revision they are using. Therefore, figure 1 to paragraph (h) 
of this AD has been changed to specify AMM Rev 68 or later approved 
revisions.

Conclusion

    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 this State of Design Authority, it 
has notified the FAA of the unsafe condition described in the MCAI 
referenced above. The FAA reviewed the relevant data, considered the 
comment received, and determined that air safety requires adopting this 
AD as proposed. Accordingly, the FAA is issuing this AD to address the 
unsafe condition on this product. Except for minor editorial changes, 
this AD is adopted as proposed in the NPRM. None of the changes will 
increase the economic burden on any operator.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Bombardier Temporary Revision 2A-75, dated May 28, 
2020. This service information specifies new or more restrictive CMR 
tasks. 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

    The FAA estimates that this AD affects 1,024 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:
    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. 
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.

Regulatory Findings

    This AD will not have federalism implications under Executive Order

[[Page 87333]]

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) 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 Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

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

2023-24-03 MHI RJ Aviation ULC (Type Certificate Previously Held by 
Bombardier, Inc.): Amendment 39-22619; Docket No. FAA-2023-1496; 
Project Identifier MCAI-2022-01059-T.

(a) Effective Date

    This airworthiness directive (AD) is effective January 22, 2024.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all MHI RJ Aviation ULC (Type Certificate 
previously held by Bombardier, Inc.) airplanes identified in 
paragraphs (c)(1) through (6) of this AD, certificated in any 
category.
    (1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
    (2) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) 
airplanes.
    (3) Model CL-600-2C11 (Regional Jet Series 550) airplanes.
    (4) Model CL-600-2D15 (Regional Jet Series 705) airplanes.
    (5) Model CL-600-2D24 (Regional Jet Series 900) airplanes.
    (6) Model CL-600-2E25 (Regional Jet Series 1000) airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 26, Fire 
Protection.

(e) Reason

    This AD was prompted by a determination that new or more 
restrictive aircraft maintenance manual (AMM) tasks and 
certification maintenance requirement (CMR) tasks are necessary. The 
FAA is issuing this AD to address a potential dormant failure of the 
lavatory smoke detector if the self-test switch check is not 
performed in accordance with the revised AMM or CMR tasks. If these 
maintenance task changes are not implemented, and in combination 
with a fire in the lavatory, this may lead to a delay in the 
reaction time to address smoke/fire in the lavatory.

(f) Compliance

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

(g) Maintenance or Inspection Program Revision for Model CL-600-2B19 
(Regional Jet Series 100 & 440) Airplanes

    For Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes: 
Within 60 days after the effective date of this AD, revise the 
existing maintenance or inspection program, as applicable, to 
incorporate the information specified in Bombardier Temporary 
Revision 2A-75, dated May 28, 2020. The initial compliance time is 
within 12 months after the effective date of this AD.

(h) Maintenance or Inspection Program Revision for Other Airplanes

    For airplanes identified in paragraphs (c)(2) through (6) of 
this AD: Within 60 days after the effective date of this AD, revise 
the existing maintenance or inspection program, as applicable, to 
incorporate the information specified in Figure 1 to paragraph (h) 
of this AD. The initial compliance time for doing the tasks is 
within 12 months after the effective date of this AD.

Figure 1 to Paragraph (h)--AMM task for an operational check of the 
lavatory smoke detector (forward and aft)
[GRAPHIC] [TIFF OMITTED] TR18DE23.016

(i) No Alternative Actions or Intervals

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

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Validation 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 responsible Flight Standards Office, as 
appropriate. If sending information directly to the manager of the 
certification office, send it to ATTN: Program Manager, Continuing 
Operational Safety, FAA, International Validation Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7300. Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the responsible Flight Standards 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 
Validation Branch, FAA; or Transport Canada; or MHI RJ Aviation 
ULC's Transport Canada Design Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(k) Additional Information

    (1) Refer to Transport Canada AD CF-2022-42, dated August 8, 
2022, for related information. This Transport Canada AD may be found 
in the AD docket at regulations.gov under Docket No. FAA-2023-1496.
    (2) For more information about this AD, contact Elizabeth 
Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 
410, Westbury, NY 11590; telephone 516-228-7300; email [email protected].

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference

[[Page 87334]]

(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 to do the actions 
required by this AD, unless this AD specifies otherwise.
    (i) Bombardier Temporary Revision 2A-75, dated May 28, 2020.
    (ii) [Reserved]
    (3) For service information identified in this AD, contact MHI 
RJ Aviation Group, Customer Response Center, 3655 Ave. des Grandes-
Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada; 
North America toll-free telephone 833-990-7272 or direct-dial 
telephone 450-990-7272; fax 514-855-8501; email mhirj.com">thd.crj@mhirj.com; 
website mhirj.com.
    (4) You may view this service information at the FAA, 
Airworthiness Products Section, Operational Safety Branch, 2200 
South 216th St., Des Moines, WA. For information on the availability 
of this material at the FAA, call 206-231-3195.
    (5) You may view this material at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at NARA, visit: www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].

    Issued on November 29, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2023-27680 Filed 12-15-23; 8:45 am]
BILLING CODE 4910-13-P
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