Airworthiness Directives; The Boeing Company Airplanes
airworthiness · Rule · Final rule. · Published 2020-09-21 · Effective 2020-10-26 · 85 FR 59180
Document
Document number
2020-19584
Federal Register citation
85 FR 59180
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
The Boeing Company
Publication date
2020-09-21
Effective date
2020-10-26
FAA docket
Docket No. FAA-2016-6140
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777-200, -200LR, and -300 series airplanes. This AD was prompted by the FAA's analysis of the Model 777 fuel system reviews conducted by the manufacturer. This AD requires modifying the fuel quantity indicating system (FQIS) to prevent development of an ignition source inside the center fuel tank due to electrical fault conditions. This AD also provides alternative actions for cargo airplanes. The FAA is issuing this AD to address the unsafe condition on these products.