EASA AD No.: 20 12

- 0 112

CAP.0011 0

- 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.: 20 12 - 0 112

Date: 22 June 2012

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 European 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 aircraft 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, Part M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Articl e 14(4) exemption]. 

### Design Approval Holder’s Name: Thielert Aircraft Engines GmbH Type/Model designation(s):
TAE 125

- 02

- 99 and TAE 125

- 02

- 114 engine s

TCDS Number: EASA.E.055

F oreign AD: Not applicable
Supersedure: No ne



### ATA 79 

### Engine Oil

– Gearbox Oil Filling Plug

– Inspection

Manufacturer(s): Thielert Aircraft Engines (TAE) Applicability: TAE 125

- 02

- 99 (commercial designation Centurion 2.0) and TAE 125

- 02

- 114 (commercial designation Centurion 2.0 S ) 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):

- Cessn a 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: An engine in

- flight shutdown has been reported on an aeroplane equipped with a TAE 125

- 02

- 99 engine. The results of the investigation showed that this was due to blockage of the gearbox oil filling plug vent hole , which caused pressurisation in the gearbox , result in g in oil leakage and a slipping clutch. This condition, if not corrected, could result in further cases of engine in

- flight shutdown and consequent loss of control of the aeroplane. For the reasons described above, this AD requires a one - time check of the oil filler plug vent hole and, depending on findings, corrective action

. Effective Date: 0 6 Jul y 2012EASA AD No.: 20 12

- 0 112

CAP.0011 0

- 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 Compliance Time(s): Required as indicated, unless accomplished previously: (1) Within 110 flight hours, or during the next scheduled engine maintenance, which ever occurs first after the effective date of this AD , accomplish the following actions concurrently: (1.1) D etermine the serial number (s/n) of the gearbox installed on the eng ine. (1.2) If the gearbox s/n is listed in TAE Service Bulletin ( SB / TM ) TAE 125

- 1015 P1 , inspect the oil fill ing plug in accordance with the instructions of TAE SB TM TAE 125

- 1015 P1

. (2) If, during the inspection as required by paragraph (1) of this AD, discrepancies are found, before next flight, accomplish the applicable corrective actions (depending on findings) in accordance with the instructions of TAE SB TM TAE 125

- 1015 P1

. (3) From the effective date, do not install a gearbox having a s/n listed in TAE SB TM TAE 125

- 1015 P1 on an engine, unless the oil filling plug has passed the inspection as required by paragraph (1) of this AD.
Ref. Public ations: TAE SB TM TAE 125

- 1015 P1 dated 27 April 201 2

. The use 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 this AD. 2. This AD was posted on 2 2 Ma y 201 2 as PAD 1 2

- 0 50 for consultation until 19 June 2012

. No comments were received during the consultation period. 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 t his AD, please contact: Thielert Aircraft Engines, Platanenstraße 14, D

- 09350 Lichtenstein, Federal Republic Germ any T elephone +49

- 37204

- 696

- 0 , F ax +49

- 37204

- 696

- 2912 , E

- mail info@centurion

- engines.com

.