EASA AD No.: 2011-0039 

EASA Form 111 Page 1/3 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2011-0039 

Date: 08 March 2011 

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, Article 14(4) exemption]. 

Type Approval Holder’s Name : 

Austro Engine GmbH 

Type/Model designation(s) : 

E4 engines 

TCDS Number : EASA.E.200 

Foreign AD : Not applicable. 

Supersedure : This AD supersedes EASA Emergency AD 2010-0206-E dated 08 October 2010. 

ATA 73 Engine Fuel & Control – High Pressure Fuel Pump – Inspection / 

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, due to rail pressure control 

failures. Analyses have shown that high pressure (HP) fuel pumps P/N E4A30-100-000 failed as a result of pressure oscillations in the fuel supply line. 

This condition, if not detected and corrected, could lead to further cases of 

power loss or even in-flight engine shutdown, possibly resulting in loss of 

control of the aeroplane. 

To address this situation, Austro Engine had introduced an additional 

inspection of the affected HP fuel pumps. As an interim measure, pending the 

availability of a final solution, EASA Emergency AD 2010-0206-E was issued 

to require repetitive inspections of the HP fuel pump supply line(s) to detect 

fuel pressure oscillations and, if this exceeded a certain value, replacement of 

the affected HP fuel pump. 

Austro Engine has now introduced a new HP fuel pump P/N E4A-30-200-000 

that is no longer affected by pressure oscillations in the fuel supply line. 

For the reasons described above, this AD retains the requirements of EASA 

AD 2010-0206-E, which is superseded, and requires replacement of all P/N 

E4A-30-100-000 HP fuel pumps with the new P/N E4A-30-200-000 pumps. 
EASA AD No.: 2011-0039 

EASA Form 111 Page 2/3 

Effective Date: 22 March 2011 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Initially at the time indicated in Table 1 of this AD, as applicable, and 

thereafter intervals not to exceed 55 flight hours (FH), inspect the HP fuel 

pump in accordance with the instructions of Austro Engine Mandatory 

Service Bulletin (MSB) MSB-E4-009 and the associated Austro Engine 

Work Instruction (WI) WI-MSB-E4-009. 

Note: AD 2010-0206-E required the inspection to be accomplished at each 

scheduled 50 FH inspection. As this inspection has been removed from the 

engine Maintenance Manual AE 300 E4.08.04, the interval has been amended 

in this new AD. 

Table 1 

Time accumulated by the HP 

fuel pump [on 12 October 2010, 

the effective date of AD 2010-

0206-E] since new: 

Compliance Time: 

45 FH or more Within 10 FH after 12 October 

2010 [the effective date of AD 

2010-0206-E] 

Less than 45 FH Before accumulating 55 FH 

(2) If, during any inspection as required by paragraph (1) of this AD, the fuel 

pressure oscillation exceeds the value as specified in Austro Engine MSBE4-009, before next flight, replace the HP fuel pump with a new unit in 

accordance with the instructions of Austro Engine MSB-E4-009. 

(3) Unless accomplished as required by paragraph (2) of this AD, within 4 

months after the effective date of this AD, replace each HP fuel pump P/N 

E4A-30-100-000 with a new P/N E4A-30-200-000 pump, in accordance 

with the instructions of Austro Engine MSB MSB-E4-009/2 and the 

Maintenance Manual E4.08.04. 

(4) Modification of an engine as required by paragraph (3) of this AD 

constitutes terminating action for the repetitive inspection requirements of 

paragraph (1) of this AD. 

(5) After modification of an engine as required by paragraph (3) of this AD, do 

not install a HP fuel pump P/N E4A-30-100-000 on that engine. 

(6) After the effective date of this AD, do not install an E4 engine on an 

aeroplane, unless it has been determined that a P/N E4A-30-200-000 HP 

fuel pump is installed on that engine. 

Ref. Publications: Austro Engine GmbH MSB-E4-009/2 dated 04 March 2011 and 

WI-MSB-E4-009 dated 07 October 2010. 

Austro Engine GmbH Maintenance Manual AE 300 E4.08.04, Revision 5, 

dated 27 January 2011. 

The use of later approved revisions 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. The required actions and the risk allowance have granted the issuance of 
EASA AD No.: 2011-0039 

EASA Form 111 Page 3/3 

a Final AD with Request for Comments, postponing the public consultation 

process after publication. 

3. Enquiries regarding this AD should be referred to the Airworthiness 

Directives, Safety Management & Research Section, Certification 

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 publications can be downloaded directly from the Austro 

Engine GmbH Service Bulletin webpage.