E ASA AD No.: 2013

- 0109

TE. CAP.0011 0

- 00 3 © 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.: 20 13

- 0 109

Date: 22 May 2013

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 Europ ean third countries that participate in the activities of EASA under Article 66 of that Regulation.

This AD is issued in accordance with E U 748/2012 , Part 21

. A.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

- 01 engines

TCDS Number: EASA.E.055

F oreign AD: Not applicable

Supersedure: No ne



### ATA 72 Engine

– Crankcase Assembly Opening

– Sealing

Manufacturer(s): Thielert Aircraft Engines (TAE)

Applicability: TAE 125

- 01 (commercial designation Centurion 1.7 ) engines , all serial numbers. These engines are known to be installed on, but not limited to, the following aeroplane types, mostly through application 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),

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

- Diamond DA 40 and DA 42 series.

Reason: A power loss event was reported on an aeroplane equipped with a TAE 125

- 01 engine. The investigation results showed that t he probable cause was contaminati on of the engine clutch by coolant spillage during the last maintenance operation. The contamination penetrate d the clutch housing through an opening located under the coolant tank that was only closed by a not fluid

- tight plastic cover.
This condition, i f not corrected, could lead to further engine power loss events

, possibly resulting in loss of control of the aeroplane. To address this potential unsafe condition, TAE have issued Technische Mitteilung ( TM ) / S ervice Bulletin (S B ) No. TAE 125

- 0022

. For th e reasons described above, this AD requires sealing of the crankcase assembly opening

.

Effective Date: 05 June 2013E ASA AD No.: 2013

- 0109

TE. CAP.0011 0

- 00 3 © 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 Compliance Time(s): Required as indicated, unless accomplished previously: Within 110 flight hours

, or during the n ext scheduled engine maintenance, whichever occurs first after the effective date of this AD, seal the crankcase assembly opening in accordance with the instructions of TAE TM /S B No. TAE 125

- 0022

.

Ref. Public ations: TAE TM /SB No. TAE 125

- 0022 , Initial Iss ue, dated 08 August 201 2

. The u se of later approved revisions of th is document 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 thi s AD.

2. This AD was posted on 18 April 2013 as PAD 13

- 056 for consultation until 16 May 2013. No comments were received during the consultation period.

3. Enquiries regarding this AD should be re ferred to the Safety Information Section, Executive Directorate, EASA. E

- mail: ADs@easa.europa.eu

. 4. For any question concerning the technical conte nt of the requirements in this AD, please contact: Thielert Aircraf t Engines GmbH Platanenstraße 14 D

- 09350 Lichtenstein, Germany Telephone +49

- 37204

- 696

- 0; Fax +49

- 37204

- 696

- 55; E

- mail info@centurion

- engines.com

.