EASA AD No.: 2012
- 0116

CAP.00110
- 001 © European Aviation Safety Agency. All rights reserved. 1 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA
- Internet/Intranet. 

## EASA AIRWORTHINESS DIRECTIVE

AD No .: 201 2 - 01 16

Date: 0 3 Ju ly 201 2
Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with Regulation (EC) No 216/2008 on behalf of the European Community, its Member States and of the Euro pean third countries that participate in the activities of EASA under Article 66 of that Regulation This AD is issued in accordance with EC 1702/2003, Part 21A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the continuing airworthiness of an a ircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may operate an aircraft to which an AD applies, except in accordance with the requirements of that AD, unless otherwise specified by the Agency [EC 2042/2003 Annex I, Par t M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Article 14(4) exemption]. 

### Design Approval Holder’s Name : Thielert Aircraft Engines GmbH Type/Model designation(s) : TAE 125 engines TCDS Number: EASA. E.055 Foreign AD: N ot applicable Supersedure: This AD supersedes EASA AD 2010
- 0137 dated 30 June 201 0

.


### ATA 7 3 Engine Fuel & Control
– F u ll - A uthority D igital E ngine C ontrol

(FADEC) Software
– Modification
Manufacturer(s): Thielert Aircraft Engines GmbH (TAE) Applicability: TAE 125
- 01 (commercial designation Centurion 1

. 7 ) , TAE 125
- 02
- 99 (commercial designation Centurion 2.0) and TAE 125
- 02
- 114 (commercial designation Centurion 2.0S) engines , all serial numbers. These engines are known to be installed on, but not limited to, the following aeroplane types, mostly through ap plication of a Supplemental Type Certificate (STC):

- Cessna 172 and (Reims
- built) F172 series (STC EASA.A.S.01527),

- Piper PA
- 28 series (STC EASA.A.S.01632),

- CEAPR (APEX, Robin) DR 400 series (STC EASA.A.S.01380), and

- Diamond DA 40 and DA 42 series. Reason: EASA ha ve received reports of possible power loss on aeroplane s equipped with TAE 125 engines. The preliminary investigation results have shown that an undetected engine overspeed , due to a slipping clutch , may have contributed to these occurrenc es, i n combination with other circumstances

. To prevent flights with a deteriorating clutch , TAE have improved the software mapping to detect overspeed events and trigger the indication of a permanent electronic control unit ( ECU ) caution at an earlier sta ge when significant engine power is still available. For the reasons described above, this AD requires the installation of the improved software mapping version , as applicable to engine Model. Effective Date: 1 0 Ju ly 2012EASA AD No.: 2012
- 0116

CAP.00110
- 001 © European Aviation Safety Agency. All rights reserved. 2 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA
- Internet/Intranet. Required Action(s) and Complianc e Time(s): Required as indicated, unless accomplished previously: Within 55 flight hours , or within 3 months, or during the next scheduled engine maintenance, whichever occurs first after the effective date of this AD, modify the engine FADEC installation by install ing the improved software version 292 (TAE 125
- 01), version 301 (TAE 125
- 02
- 99), or version 302 (TAE 125
- 02
- 114) , as applicable to engine model :

- F or TAE 125
- 01 engines : in accordance with the instructions of Annex 13 »FADEC Software Update« of the Operation & Maintenance Manual OM
- 02
- 01 Issue 3 Revision 1 6

.

- F or TAE 125
- 02
- 99 and TAE 125
- 02
- 114 engines : in accordance with the instructions of Annex 17 »FADEC Software Update« of the Operation & Maintenance Manual OM
- 02
- 02 Issue 2 Revision 8

. Ref . Public ations: TAE SB TM TAE 000
- 0007 Rev ision 18 dated 18 June 201 2

. Operation & Maintenance Manual OM
- 02
- 01 Issue 3 Revision 1 6 dated 05 Ma y 201 2

. Operation & Maintenance Manual OM
- 02
- 02 Issue 2 Revision 8 dated 0 4 May 201 2

. The use of later approved re visions of these documents is acceptable for compliance with the requirements of this AD. Remarks : 1. If requested and appropriately substantiated, EASA can approve Alternative Methods of Compliance for this AD. 2. Based on the required actions and the complia nce time, EASA have decided to issue a Final AD with Request for Comments, postponing the public consultation process until after publication

. 3. Enquiries regarding this AD should be referred to the Safety Information Section, Executive Directorate, EASA. E
- mail: ADs@easa.europa.eu

. 4. For any question concerning the technical content of the requirements in this AD, please contact: Thielert Aircraft Engines GmbH Platanenstraße 14 D
- 09350 Lichtenstein, Germany Telephone + 49
- 37204
- 696
- 0; Fax +49
- 37204
- 696
- 55; E
- mail info@centurion

- engines.com

.