Airworthiness Directive · Amendment 39-22994 · Fire protection
Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
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-2023-58, dated July 25, 2023 (Transport Canada AD CF-2023-58).
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by a design review that found insufficient clearance between fire extinguishing system (FIREX) lines and certain fasteners in the center mid-fuselage area. This AD requires an inspection for positioning and sufficient clearance of certain fasteners in certain fuselage and keel beam areas, an inspection for damage of the fire extinguishing lines, and applicable corrective actions, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
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-2023-58.
(1) Where Transport Canada AD CF-2023-58 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where Transport Canada AD CF-2023-58 refers to hours air time, this AD requires using flight hours.
(3) Where the “Compliance” paragraph of Transport Canada AD CF-2023-58 specifies the compliance time to accomplish the actions, for this AD, the compliance time is at the applicable time specified in paragraph (h)(3)(i) or (ii), whichever occurs later.
(i) Within the time specified in the “Compliance” paragraph of Transport Canada AD CF-2023-58.
(ii) Within 90 days after the effective date of this AD.
(4) The figures of the service information referenced in Transport Canada AD CF-2023-58 include certain incorrect bolt numbers; paragraphs (h)(4)(i) through (v) of this AD provide applicable corrections.
(i) “HST110AG6” should be “HST110AG6-5” instead.
(ii) “HST111AG6” should be “HST111AG6-5” instead.
(iii) “HST410AG6” should be “HST410AG6-5” instead.
(iv) “HST411AG6” should be “HST411AG6-5” instead.
(v) “0206003AG6-5” should be “B0206003AG6-5” instead.
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, AIR-520, Continued Operational Safety 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 Continued Operational Safety Branch, mail it to the address identified in paragraph (j) of this AD. Information may be emailed to: 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, AIR-520, Continued Operational Safety 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.
For more information about this AD, contact Yaser Osman, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone 516-228-7300; email 9-avs-nyaco-cos@faa.gov.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
