Airworthiness Directive · Amendment 39-16852 · Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines
Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines
Superseded. A later AD replaced this one: AD 2015-02-01. Comply with the one in force.
This AD applies to Thielert Aircraft Engines GmbH (TAE):
(1) TAE 125-01 reciprocating engines (commercial designation Centurion 1.7), all serial numbers (S/Ns), if a clutch assembly part number (P/N) 02-7210-11001R13 is installed, and
(2) TAE 125-02-99 reciprocating engines (commercial designation Centurion 2.0), all S/Ns, if a clutch assembly P/N 05-7211-K006001 or P/N 05-7211-K006002 is installed.
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.
Unless already done, do the following actions.
(1) After the effective date of this AD, for clutch assembly P/N 02-7210-11001R13, P/N 05-7211-K006001 and P/N 05-7211-K006002, with an S/N listed in TAE Service Bulletin (SB) No. TM TAE 125-0021, Revision 1, dated August 17, 2011, or SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011, do the following:
(i) For engines with affected clutch assemblies that have accumulated 100 flight hours or more on the effective date of this AD, replace the clutch assembly before further flight.
(ii) For engines with affected clutch assemblies that have accumulated less than 100 flight hours on the effective date of this AD, replace the clutch assembly before accumulating 100 flight hours.
(2) After the effective date of this AD:
(i) Do not install an engine having a clutch assembly that is listed by S/N in TAE SB No. TM TAE 125-0021, Revision 1, dated August 17, 2011, or SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011, and
(ii) Do not install any clutch assembly listed by S/N in TAE SB No. TM TAE 125-0021, Revision 1, dated August 17, 2011, or SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011, into any engine.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
