Airworthiness Directive · Amendment 39-16615 · Thielert Aircraft Engines GmbH Models TAE 125-02-99 and TAE 125-02-114 Reciprocating Engines
Thielert Aircraft Engines GmbH Models TAE 125-02-99 and TAE 125-02-114 Reciprocating Engines
This AD applies to Thielert Aircraft Engines GmbH models TAE 125-02-99 and TAE 125-02-114 reciprocating engines installed in, but not limited to, Cessna 172 and (Reims-built) F172 series (European Aviation Safety Agency (EASA) Supplemental Type Certificate (STC) No. EASA.A.S.01527); Piper PA-28 series (EASA STC No. EASA.A.S. 01632); APEX (Robin) DR 400 series (EASA STC No. A.S.01380); and Diamond Aircraft Industries Models DA 40, DA 42, and DA 42M NG airplanes.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions.
(1) For engines with serial numbers (S/Ns) listed in Table 1 of this AD, replace the timing chain within 600 flight hours-since-new, or no later than 55 flight hours after the effective date of this AD, whichever occurs later.
| 02-02-01510 to 02-02-01514 inclusive |
| 02-02-01518 to 02-02-01520 inclusive |
| 02-02-01529 |
| 02-02-01717 |
| 02-02-01718 |
| 02-02-01720 |
| 02-02-01721 |
| 02-02-01727 |
| 02-02-01728 |
| 02-02-01730 to 02-02-01733 inclusive |
| 02-02-01739 to 02-02-01752 inclusive |
(2) For engines with S/Ns not listed in Table 1 of this AD, replace the timing chain within 910 flight hours-since-new, or no later than 55 flight hours after the effective date of this AD, whichever occurs later.
(3) Thereafter, for all TAE 125-02-99 and TAE 125-02-114 engines, repetitively replace the timing chain within every additional 910 flight hours.
(4) Guidance on replacing the timing chain can be found in Thielert Aircraft Engines GmbH Service Bulletin No. TM TAE 125-1010 P1, Revision 2, dated May 26, 2010.
This AD differs from the MCAI and/or service information, which require initial replacement of the timing chain for the engines listed in paragraph (e)(1) above within either the next 110 flight hours or at the next maintenance, whichever occurs first, for those engines having accumulated between 500 and 600 flight hours time-since-new. The reason for the difference is to ensure that the compliance requirements for all engines in paragraph (e)(1) above are consistent.
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
