airworthiness · Rule · Final rule; request for comments. · Published 2011-11-07 · Effective 2011-11-22 · 76 FR 68636
Document
Document number
2011-28672
Federal Register citation
76 FR 68636
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Thielert
Publication date
2011-11-07
Effective date
2011-11-22
FAA docket
Docket No. FAA-2010-0683
Abstract
We are superseding an existing airworthiness directive (AD) for Thielert Aircraft Engines GmbH (TAE) Models TAE 125-01 and TAE 125- 02-99 reciprocating engines. That AD currently requires replacement of certain part numbers (P/Ns) and serial numbers (S/Ns) of clutch assemblies due to clutch failure. The failures identified above could lead to engine in-flight shutdown and loss of control of the airplane. This AD requires the same actions, but applies the corrective action to an additional 244 affected clutch assemblies. This AD was prompted by TAE identifying additional clutch assemblies with nonconforming disc springs. We are issuing this AD to correct the unsafe condition on these products.