EASA AD No.: 2013-0025

TE.CAP.00110-003 © 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.: 2013-0025

Date: 06 February 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 

European third countries that participate in the activities of EASA under Article 66 of that 

Regulation.

This AD is issued in accordance with EU 748/2012, Part 21.A.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, Article 14(4) exemption].

Design Approval Holder’s Name:

AUSTRO ENGINE GmbH

Type/Model designation(s):

E4 engines

TCDS Number: EASA.E.200

Foreign AD: Not applicable

Supersedure: None

ATA 72 Engine – Waste Gate Controller – Replacement

Manufacturer(s): Austro Engine GmbH

Applicability: Model E4 engines, all serial numbers.

These engines are known to be installed on, but not limited to, Diamond Aircraft 

Industries DA 40 NG and DA 42 NG aeroplanes.

Reason: Several power loss events have been reported on Austro E4 engines, due to 

fracture of the waste gate controller lever. 

This condition, if not corrected, could lead to further cases of power loss 

events, possibly resulting in forced landing, damage to the aeroplane and injury 

to occupants.

To address this potential unsafe condition, Austro Engine introduced a waste 

gate controller of improved design, Part Number (P/N) E4A-41-120-000 revision 

(Rev.) 070.

For the reasons described above, this AD requires replacement of all previous 

revisions of P/N E4A-41-120-000 and P/N E4B-41-120-000 waste gate 

controllers with improved design P/N E4A-41-120-000 Rev.070 units.

Effective Date: 20 February 2013
EASA AD No.: 2013-0025

TE.CAP.00110-003 © 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 schedule engine maintenance, or 

within 3 months, whichever occurs first after the effective date of this AD, 

install Waste Gate Controller P/N E4A-41-120-000 Rev. 070, or higher, in 

accordance with the instructions of Austro Engine Mandatory Service 

Bulletin (MSB) MSB-E4-007 Revision 3.

(2) From the effective date of this AD, do not install a waste gate controller on 

any engine, unless it has been determined that the part is the improved 

design, P/N E4A-41-120-000 Rev. 070, or higher. 

Ref. Publications: Austro Engine MSB-E4-007 Revision 3 dated 28 November 2012.

The use of later approved revisions of this 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 08 January 2013 as PAD 13-004 for consultation 

until 05 February 2013. 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 

this AD, please contact:

Austro Engine GmbH, Rudolf-Diesel-Straße 11,

A-2700 Wiener Neustadt, Austria

Telephone: +43 2622 23000 2525

Fax: +43 2622 23000-2711

E-mail: service@austroengine.at.

The referenced publication can be downloaded directly from the Austro 

Engine GmbH Service Bulletin webpage.