Airworthiness Directive · Amendment 39-21850 · Landing gear
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model BD-100-1A10 airplanes, certificated in any category, serial numbers 20003 through 20780 inclusive.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a discovery that a lockwire may not have been installed on the side stay actuator pin nut of the main landing gear (MLG). This AD requires inspecting the left-hand and right-hand MLG side stay actuator assembly pin nut for the presence of a lockwire, and installing a lockwire if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
Within 12 months after the effective date of this AD: Inspect the left-hand (LH) and right-hand (RH) MLG side stay actuator assembly pin nuts for presence of a lockwire, in accordance with paragraph 2.B of the Accomplishment Instructions of the applicable service information specified in paragraphs (g)(1) and (2) of this AD. If the lockwire is missing: Before further flight, install a lockwire in accordance with paragraph 2.C of the Accomplishment Instructions of the applicable service information specified in paragraphs (g)(1) and (2) of this AD.
(1) Bombardier Service Bulletin 100-32-36, dated June 25, 2020.
(2) Bombardier Service Bulletin 350-32-012, dated June 25, 2020.
