MANUFACTURER: Thielert Aircraft Engines GmbH
(TAE) Reciprocating Engines SUBJECT: Airworthiness Directive 2011-23-01 ACTION: Final rule; request for comments
SUMMARY: The FAA is 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. The FAA is issuing this AD to correct the unsafe
condition on these products.
DATES: This AD becomes effective November 22,