Airworthiness Directive · Amendment 39-22178 · Landing gear
Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
Superseded. A later AD replaced this one: AD 2025-09-02. Comply with the one in force.
This AD applies to all 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.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This AD was prompted by reports of in-service findings of corrosion on the flange of the main landing gear (MLG) lower spindle pin. This AD requires repetitive inspections of the left and right MLG lower spindle pins to detect corrosion, and applicable repair or replacement if necessary, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada Civil Aviation (TCCA) AD CF-2021-22R1, issued May 13, 2022 (TCCA AD CF-2021-22R1).
(1) Where TCCA AD CF-2021-22R1 refers to May 20, 2021, the effective date of TCCA AD CF-2021-18, this AD requires using the effective date of this AD.
(2) Where paragraph B.1. of Part I. “Initial Inspection,” of TCCA AD CF-2021-22R1 refers to a compliance time for the main landing gear (MLG), for this AD, the compliance time is before the accumulation of 5,500 total flight cycles on the MLG or within 48 months after the MLG's first entry into service on an airplane, whichever occurs first.
(3) Where TCCA AD CF-2021-22R1 refers to using certain service information, replace the text, “Airbus Canada SB BD500-321003 Issue 001, dated 13 April 2021,” with “Airbus Canada SB BD500-321003 Issue 002, dated May 13, 2022.”
Although the service information referenced in TCCA AD CF-2021-22R1 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
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.
