airworthiness · Rule · Final rule. · Published 2020-09-21 · Effective 2020-10-26 · 85 FR 59178
Document
Document number
2020-20675
Federal Register citation
85 FR 59178
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus SAS
Publication date
2020-09-21
Effective date
2020-10-26
FAA docket
Docket No. FAA-2020-0330
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a report indicating that when the number 2 engine thrust reverser (T/R) was opened, the right-hand T/R hinge nut located at position 4 was found detached; investigation revealed that certain nuts could have been installed with noncompliant locking features, or with locking features that could degrade quicker than anticipated. This AD requires replacing any existing nut on the T/R hinge with a new nut, installing a new nut and washer if necessary, and applying a torque stripe at each T/R hinge location, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.