2024-23-08: Wings

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: 2024-23-08 Bombardier, Inc.: Amendment 39-22887; Docket No. FAA-2024-2015; Project Identifier MCAI-2023-00769-T. (a) Effective Date This airworthiness directive (AD) is effective January 6, 2025. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category, serial numbers 9861, 9872, 60001 through 60004 inclusive, 60006 through 60023 inclusive, 60025 through 60029 inclusive, 60031, 60033 through 60036 inclusive, 60038 through 60042 inclusive, 60044, 60046 through 60048 inclusive, 60050 through 60055 inclusive, 60058 through 60060 inclusive, 60062 through 60067 inclusive, 60069 through 60071 inclusive, 60073 through 60086 inclusive, and 60088 through 60101 inclusive. (d) Subject Air Transport Association (ATA) of America Code 57, Wings. (e) Unsafe Condition This AD was prompted by reports of missing or damaged inboard flap seal plates. The FAA is issuing this AD to address the unsafe condition, which could result in the partial or total detachment of the flap seal plate. Under certain flight conditions, a missing inboard flap seal plate could lead to excessive buffeting and vibration, and consequent damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Detailed Inspection At the applicable time specified in figure 1 to paragraph (g) of this AD, perform a detailed inspection for cracks of the attaching angles of the inboard flap seal plates, in accordance with Section 2.B. (Part A) of the Accomplishment Instructions of Bombardier Service Bulletin 700-27-5509 or 700-27-6509, both Revision 01, both dated May 5, 2023, as applicable, except do corrective actions as specified in paragraph (h) of this AD. Figure 1 to Paragraph ( g )-Compliance Requirements Total flight hours as of the effective date of this AD Compliance time after the effective date of this AD Less than or equal to 750 Within 250 flight hours. More than 750 Within 100 flight hours. (h) Corrective Actions for Inboard Flap Seal Plates (1) If no crack is found during any inspection required by paragraph (g) of this AD, repeat the inspection thereafter at intervals not to exceed 250 flight hours, except as specified in paragraph (i) of this AD. (2) If any crack is found during any inspection required by paragraph (g) of this AD, do the actions specified in paragraph (i) of this AD before further flight. (i) Replacement of Inboard Flap Seal Plates Unless already done as specified in paragraph (h)(2) of this AD: Within 12 months after the effective date of this AD, do the actions specified in paragraphs (i)(1) through (3) of this AD, in accordance with Section 2.C. (Part B) of the Accomplishment Instructions of Bombardier Service Bulletin 700-27-5509 or 700-27-6509, both Revision 01, both dated May 5, 2023, as applicable. (1) Replace the inboard flap seal plates with redesigned plates. (2) Do a detailed visual inspection for damage of the flap inboard closing ribs and trailing edges. (3) Do an eddy current or liquid penetrant inspection for cracks running out of the flap inboard closing rib holes common to the outboard stiffener and angle. (j) Repair for Flap Inboard Closing Ribs and Trailing Edges If any crack or other damage is found during any inspection required by paragraph (i)(2) or (3) of this AD, repair before further flight 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 the method is approved by the DAO, the approval must include the DAO-authorized signature. (k) Terminating Action for Repetitive Inspections Accomplishment of the actions required by paragraph (i) of this AD terminates the requirements of paragraph (h)(1) of this AD. (l) Credit for Previous Actions This paragraph provides credit for actions required by this AD, if those actions were performed before the effective date of this AD using Bombardier Service Bulletin 700-27-5509 or 700-27-6509, both dated October 4, 2022. (m) No Reporting Requirement Although Bombardier Service Bulletins 700-27-5509 and 700-27-6509, both Revision 01, both dated May 5, 2023, specify to submit certain information to the manufacturer, this AD does not include that requirement. (n) 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 the address identified in paragraph (o)(1) of this AD. Information may be emailed to: [email protected]. 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. (o) Additional Information (1) For more information about this AD, contact Yaser Osman, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; email [email protected]. (2) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (p)(3) of this AD. (p) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) Bombardier Service Bulletin 700-27-5509, Revision 01, dated May 5, 2023. (ii) Bombardier Service Bulletin 700-27-6509, Revision 01, dated May 5, 2023. (3) For Bombardier material 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) 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 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 12, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-28125 Filed 11-29-24; 8:45 am]BILLING CODE 4910-13-P