Airworthiness Directive · Amendment 39-17841 · Oxygen
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 777F series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 777-35A0029, Revision 1, dated April 29, 2013.
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777F series airplanes. This AD was prompted by a report of a fire that originated near the first officer's seat and caused extensive damage to the flight deck. This AD requires replacing the low-pressure oxygen hoses with non-conductive low-pressure oxygen hoses in the stowage box and supernumerary ceiling area. We are issuing this AD to prevent electrical current from passing through an internal, anti-collapse spring of the low-pressure oxygen hose, which can cause the low-pressure oxygen hose to melt or burn and lead to an oxygen-fed fire near the flight deck.
Within 36 months after the effective date of this AD: Replace the low-pressure oxygen hoses in the stowage box and supernumerary ceiling area with new, non-conductive, low-pressure oxygen hoses, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-35A0029, Revision 1, dated April 29, 2013.
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.
Aircraft
