Airworthiness Directives; Rolls-Royce Corporation (Type Certificate Previously Held by Allison Engine Company) Turboprop Engines
airworthiness · Rule · Final rule; request for comments. · Published 2020-09-29 · Effective 2020-10-14 · 85 FR 60891
Document
Document number
2020-21377
Federal Register citation
85 FR 60891
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Rolls-Royce Corporation (Type Certificate Previously Held by Allison
Publication date
2020-09-29
Effective date
2020-10-14
FAA docket
Docket No. FAA-2020-0853
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Corporation (RRC) AE 2100D3 model turboprop engines. This AD requires revising the airworthiness limitations section (ALS) of the RRC AE 2100D3 Maintenance Manual and the operator's approved continuous airworthiness maintenance program. This AD was prompted by a report of a propeller gearbox (PGB) development test in which high vibration occurred due to a fatigue crack that initiated in the propeller shaft. The FAA is issuing this AD to address the unsafe condition on these products.