airworthiness · Rule · Final rule. · Published 2020-08-05 · Effective 2020-09-09 · 85 FR 47297
Document
Document number
2020-16405
Federal Register citation
85 FR 47297
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Sikorsky
Publication date
2020-08-05
Effective date
2020-09-09
FAA docket
Docket No. FAA-2020-0212
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation Model S-76C helicopters. This AD was prompted by reports of inaccurate main gear box (MGB) indications in flight. This AD requires updating the remote data acquisition unit (RDAU) software and re-identifying the RDAU and, for certain helicopters, updating the software of the display unit (DU) and re- identifying the DU. The FAA is issuing this AD to address the unsafe condition on these products.