Airworthiness Directive · Amendment 39-22231 · Oxygen
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model BD-700-2A12 airplanes, certificated in any category, having serial numbers 70006, 70008, 70009 through 70016 inclusive, 70019, 70020, 70025, 70026, 70028, 70032 through 70035 inclusive, 70038 through 70043 inclusive, 70046, 70048, 70050, 70051, 70054, 70063, and 70073.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by a report that the flightcrew and passenger oxygen system's refill and capillary lines may have been contaminated by sealant and cotton fibers. This AD requires an inspection to determine the serial numbers of the oxygen cylinders installed and replacement of each affected oxygen cylinder and regulator assembly (OCRA). The FAA is issuing this AD to address the unsafe condition on these products.
Within 36 months after the effective date of this AD: Do an inspection to determine the serial numbers of the oxygen cylinders installed in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-35-7502, Basic Issue, dated January 26, 2022 (SB 700-35-7502). If any affected oxygen cylinder and regulator assembly (OCRA) is installed, before further flight replace the affected part with a new or reworked OCRA, in accordance with the Accomplishment Instructions of SB 700-35-7502.
