Airworthiness Directive · Amendment 39-22230 · Navigation
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model BD-700-2A12 airplanes, serial numbers 70006 through 70053 inclusive, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by the investigation of erroneous radio altimeter data that was displayed on an in-service airplane. It was revealed that certain radio altimeter coaxial cables used by the radio altimeter systems, in the aft fuselage equipment bay, were damaged. This AD requires replacing affected radio altimeter coaxial cables. The FAA is issuing this AD to address the unsafe condition on these products.
Within 12 months after the effective date of this AD, replace affected radio altimeter coaxial cables, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-91-7502, Revision 02, dated April 5, 2022, except as specified in paragraph (h) of this AD.
Although Bombardier Service Bulletin 700-91-7502, Revision 02, dated April 5, 2022, specifies to submit certain information to the manufacturer, this AD does not include that requirement.
