airworthiness · Rule · Final rule. · Published 2021-12-23 · Effective 2022-01-27 · 86 FR 72838
Document
Document number
2021-27828
Federal Register citation
86 FR 72838
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus SAS
Publication date
2021-12-23
Effective date
2022-01-27
FAA docket
Docket No. FAA-2021-0827
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by reports of slat transmission jams caused by frozen slat geared rotary actuators (SGRAs) at slat 5 track 12. This AD requires repetitive water drainage and plug cleaning of the left- and right-hand SGRAs having a certain part number installed on slat 5 track 12 with certain functional item numbers, 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.