Airworthiness Directive · Amendment 39-21010 · Oxygen
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 777-200 and -300ER series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 777-35-0041, Revision 1, dated August 14, 2019.
The FAA is superseding Airworthiness Directive (AD) 2016-18- 02, which applied to certain The Boeing Company Model 777-200 and - 300ER series airplanes. AD 2016-18-02 required replacing the low- pressure oxygen flex hoses with new non-conductive low-pressure oxygen flex hoses in the gaseous passenger oxygen system in airplanes equipped with therapeutic oxygen. This AD retains those actions and adds actions for certain airplanes. AD 2016-18-02 was prompted by the determination that the low-pressure oxygen flex hoses in the gaseous passenger oxygen system can potentially be conductive. This AD was further prompted by the determination that the associated service information is inadequate for certain airplanes. The FAA is issuing this AD to address the unsafe condition on these products.
Within 72 months after September 15, 2016 (the effective date of AD 2016-18-02): Do all applicable actions identified as “RC” (required for compliance) in, and in accordance with, paragraph (g)(1) or (2) of this AD, as applicable.
(1) Except as required by paragraph (g)(2) of this AD: Do the actions in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-35-0041, dated April 8, 2016; or Revision 1, dated August 14, 2019.
(2) For airplanes identified as Group 4 in Boeing Special Attention Service Bulletin 777-35-0041, Revision 1, dated August 14, 2019: Do the actions in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-35-0041, Revision 1, dated August 14, 2019.
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
