2024-06-08: Pneumatic

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2024-06-08 Bombardier, Inc.: Amendment 39-22713; Docket No. FAA-2023-2139; Project Identifier MCAI-2023-00435-T. (a) Effective Date This airworthiness directive (AD) is effective June 5, 2024. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc., Model BD-700-2A12 airplanes, certificated in any category, having serial numbers 70005 and subsequent. (d) Subject Air Transport Association (ATA) of America Code: 36, Pneumatic. (e) Unsafe Condition This AD was prompted by reports that some overheat detection sensing elements of the bleed air leak detection system were manufactured with insufficient salt fill. The FAA is issuing this AD to address non-conforming sensing elements of the bleed air leak detection system. The unsafe condition, if not addressed, could result in an inability to detect hot bleed air leaks and consequent damage to surrounding structures and systems, which could prevent continued safe flight and landing. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Definitions For the purpose of this AD, the definitions specified in paragraphs (g)(1) and (2) of this AD apply. (1) An affected part is a sensing element marked with a date code before A2105 and having an LTS/Kidde part number specified in Liebherr Service Bulletin CFD-F1958-26-01, dated May 6, 2022, unless that sensing element meets the criteria specified in paragraph (g)(1)(i) or (ii) of this AD. (i) The sensing element has been tested as specified in Section 3 of the Accomplishment Instructions of Kidde Aerospace and Defense Service Bulletin CFD-26-1, Revision 6, dated February 28, 2022, or earlier revisions, and has been found to be serviceable; and the sensing element has been marked on one face of its connector hex nut and packaged as specified in Section 3.C. of the Accomplishment Instructions of Kidde Aerospace and Defense Service Bulletin CFD-26-1, Revision 6, dated February 28, 2022, or earlier revisions. (ii) The sensing element has been tested and found to be serviceable as specified in paragraph (j) of this AD; and the sensing element has been marked on one face of one connector hex nut with one green mark, as specified in Figure 33 of Bombardier Service Bulletin 700-36-7503, dated December 23, 2022, as applicable (the figure is representative for all sensing elements). (2) A serviceable part is a sensing element that is not an affected part. (h) Maintenance Records Verification For airplane serial numbers 70097 and subsequent whose airplane date of manufacture, as identified on the identification plate of the airplane or in the aircraft maintenance logbook, is on or before the effective date of this AD: Within 60 days after the effective date of this AD, examine the airplane maintenance records to verify whether any affected part has been installed since the airplane date of manufacture, as identified on the identification plate of the airplane or in the aircraft maintenance logbook. (1) If the maintenance records confirms that an affected part has been installed, or if it cannot be confirmed that an affected part has not been installed, paragraphs (i) and (j) of this AD must be complied with within the compliance time specified in paragraphs (i) and (j) of this AD. (2) If the maintenance records confirm that no affected parts have been installed since airplane date of manufacture, then paragraphs (i) and (j) of this AD are not applicable. (i) Minimum Equipment List (MEL) Revision For all airplanes: Within 90 days after the effective date of this AD, revise the operator's existing MEL by incorporating the information specified in figures 1 through 7 to paragraph (i) of this AD, as applicable. This may be done by inserting a copy of this information into the operator's existing MEL. Figure 1 to Paragraph (i)-MMEL Item 21-0425 BILLING CODE 4910-13-P ER01MY24.019 ER01MY24.020 ER01MY24.021 Figure 2 to Paragraph (ii)-MMEL Item 30-0055 ER01MY24.022 ER01MY24.023 ER01MY24.024 Figure 3 to Paragraph (i)-MMEL Item 30-0060 ER01MY24.025 ER01MY24.026 ER01MY24.027 Figure 4 to Paragraph (i)-MMEL Item 30-0090 ER01MY24.028 ER01MY24.029 ER01MY24.030 Figure 5 to Paragraph (i)-MMEL Item 30-0095 ER01MY24.031 ER01MY24.032 ER01MY24.033 Figure 6 to Paragraph (i)-MMEL Item 36-0050 ER01MY24.034 ER01MY24.035 ER01MY24.036 Figure 7 to Paragraph (i)-MMEL Item 36-0105 ER01MY24.037 ER01MY24.038 ER01MY24.039 BILLING CODE 4910-13-C (j) Testing and Replacement of Affected Overheat Detection Sensing Elements For airplane serial numbers 70005 and subsequent: Within 3,500 flight hours or 120 months, whichever occurs first, from the effective date of this AD, test the overheat detection sensing elements to determine if they are serviceable, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-36-7503, dated December 23, 2022. (1) For each sensing element that is serviceable, before further flight, mark the sensing element with a witness mark in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-36-7503, dated December 23, 2022. (2) For each sensing element that is not serviceable, before further flight, replace the sensing element with a serviceable part in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-36-7503, dated December 23, 2022. (k) Parts Installation Prohibition As of the effective date of this AD, no person may install, on any airplane, any affected part unless it is a serviceable part. (l) No Reporting Requirement Although Bombardier Service Bulletin 700-36-7503, dated December 23, 2022, specifies to submit certain information to the manufacturer, this AD does not include that requirement. (m) 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 manager of the International Validation Branch, mail it to ATTN: Program Manager, Continuing Operational Safety, at the address identified in paragraph (n)(2) of this AD or email to: [email protected]. If mailing information, also submit information by email. 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 Bombardier, Inc.'s Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (n) Additional Information (1) Refer to Transport Canada AD CF-2023-18, dated March 9, 2023, for related information. This Transport Canada AD may be found in the AD docket at regulations.gov under Docket No. FAA-2023-2139. (2) For more information about this AD, contact Steven Dzierzynski, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; email: [email protected]. (o) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) Bombardier Service Bulletin 700-36-7503, dated December 23, 2022. (ii) Liebherr Service Bulletin CFD-F1958-26-01, dated May 6, 2022. (3) For Bombardier service information identified in this AD, contact Bombardier Business Aircraft Customer Response Center, 400 Côte-Vertu Road West, Dorval, Québec H4S 1Y9, Canada; telephone 514-855-2999; email: [email protected]; website: bombardier.com . (4) For Liebherr-Aerospace Toulouse SAS service information identified in this AD, contact Liebherr-Aerospace Toulouse SAS, 408, Avenue des Etats-Unis-B.P.52010, 31016 Toulouse Cedex, France; telephone +33 (0)5.61.35.28.28; fax +33 (0)5.61.35.29.29; email: [email protected]; website: www.liebherr.aero. (5) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th Street, Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (6) 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 March 18, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-09341 Filed 4-30-24; 8:45 am]BILLING CODE 4910-13-P