Airworthiness Directive · Amendment 39-22522 · Pneumatic
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 Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF-2022-13R1, dated April 18, 2023 (Transport Canada AD CF-2022-13R1).
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 report from the supplier of a manufacturing quality escape in which some sensing elements were manufactured with insufficient salt fill. This could result in an inability to detect hot bleed air leaks. This AD requires, depending on airplane serial number, reviewing the airplane maintenance records for affected bleed leak detection system sensing elements, testing the sensing elements, replacing those that fail, and witness marking those that pass, as specified in a Transport Canada AD, which is incorporated by reference. This AD also prohibits the installation of affected parts under certain conditions. 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-2022-13R1.
(1) Where Transport Canada AD CF-2022-13R1 refers to April 11, 2022 (the effective date of Transport Canada AD CF-2022-13, dated March 28, 2022), or to its effective date, this AD requires using the effective date of this AD.
(2) Where Transport Canada AD CF-2022-13R1 refers to hours air time, this AD requires using flight hours.
(3) Where Transport Canada AD CF-2022-13R1 defines “Affected part” and refers to part numbers in a certain service bulletin, for this AD, operators must use Kidde Aerospace & Defense Service Bulletin CFD-26-1, Revision 6, dated February 28, 2022, to determine the part number.
(4) Where “Part I” of Transport Canada AD CF-2022-13R1 specifies the parts installation prohibition for certain airplanes, replace the text “associated with Part A through Part J of the first SB or Part A through Part C of the second SB” with “associated with Part A through Part J of ACLP SB BD500-362002 Issue 001, dated February 18, 2022, or Issue 002, dated July 26, 2023; or Part A through Part C of ACLP SB BD500-362003 Issue 001, dated February 18, 2022, or Issue 002, dated July 26, 2023.”
(5) Where the appendixes of Issue 001 of the service information referenced in “First SB” and “Second SB” of Transport Canada AD CF-2022-13R1 specify steps to “remove and replace any failed loop,” this AD requires replacing only any failed sensing element as specified in Transport Canada AD CF-2022-13R1.
(6) Where the appendixes and the procedure sections of Issue 001 of the service information referenced in “First SB” and “Second SB” of Transport Canada AD CF-2022-13R1 specify redundant steps to remove and replace any failed loops or any failed sensing elements and steps to add “witness marks (dots),” this AD requires those steps be performed only once. Also, as stated in paragraph (h)(5) of this AD only the failed sensing element must be replaced and not a failed loop.
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.
