Airworthiness Directive · Amendment 39-17105 · Oxygen
Bombardier, Inc. Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes; certificated in any category; equipped with entrance compartment assembly having part numbers that begin with A281001, A282001, A283001, A284001, 4591001, 4592001, 4593001, or 4594001.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD was prompted by a report of a ground fire which was fed by oxygen escaping from a damaged third crew person oxygen line and had started in the vicinity of an electrical panel. This AD requires replacing and changing the routing of the flexible oxygen hose of the third crew person oxygen line and modifying the entrance compartment assembly. We are issuing this AD to prevent the possibility of damage to the third crew person oxygen line and of an oxygen-fed fire in the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 4,000 flight hours after the effective date of this AD, change the routing and replace the flexible oxygen hose of the third crew person oxygen line with a new flexible oxygen hose and modify the entrance compartment assembly, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-35-017, Revision A, dated June 9, 2011.
As of the effective date of this AD, no person may install an entrance compartment assembly having a part number that begins with A281001, A282001, A283001, A284001, 4591001, 4592001, 4593001, or 4594001, or a flexible oxygen hose having a part number 38027-0260, on any airplane, unless that entrance compartment assembly has been modified and the flexible oxygen hose has been replaced with a new flexible oxygen hose, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-35-017, Revision A, dated June 9, 2011.
