Airworthiness Directives; The Boeing Company Airplanes
airworthiness · Rule · Final rule. · Published 2021-03-24 · Effective 2021-04-28 · 86 FR 15572
Document
Document number
2021-06023
Federal Register citation
86 FR 15572
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
The Boeing Company
Publication date
2021-03-24
Effective date
2021-04-28
FAA docket
Docket No. FAA-2020-0785
Abstract
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747 series airplanes and Model 767 series airplanes. This AD was prompted by a report of an un-commanded fuel transfer between the main and center fuel tanks. This AD prohibits operation of an airplane with any inoperative refuel valve (fueling shut-off valve) failed in the open position. The FAA is issuing this AD to address the unsafe condition on these products.