EASA AD No.: 2012-0249

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.: 2012-0249

Date: 21 November 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 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:

TURBOMECA

Type/Model designation(s):

ARRIUS 2B1 engines

TCDS Number: EASA.E.029

Foreign AD: Not applicable

Supersedure: This AD supersedes DGAC France AD 1999-217(A) dated 19 May 1999.

ATA 73 Engine Fuel & Control – Fuel Injection Manifolds and Privilege 

Injector – Replacement

Manufacturer(s): Turboméca

Applicability: ARRIUS 2B1 engines, all serial numbers.

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

Deutschland EC135 twin-engine helicopters.

Reason: During inspections carried out at a repair workshop, it was found that some 

main injectors were totally or partially blocked.

This condition, if not corrected, could lead to engine flame out during rapid 

engine deceleration or to non-availability of the OEI 2min 30s rating, possibly

resulting in an uncommanded engine in-flight shut down.

To address this unsafe condition, DGAC France issued AD 1999-217(A) to

require periodical replacement of fuel manifolds.

Since that AD was issued, further investigation results demonstrated that:

a periodic flow rate check (water technology) and the cleaning accomplished 

in accordance with the instructions of Turboméca Mandatory Service Bulletin 

(MSB) N° A319 73 2012 did not meet the expected results (wrong indication 

and non-sufficient cleaning), and,

replacement of the fuel injection manifolds and privilege injector ensures the 

airworthiness of the engine in case of blockage of the injection manifolds 

combined with a rapid engine deceleration or in case of the use of the OEI 

2min 30s rating.

For the reasons described above, this AD supersedes DGAC France AD 1999-

217(A) and requires replacement of the fuel injection manifolds and privilege 
EASA AD No.: 2012-0249

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.

injector before exceeding a defined limit of operating hours as specified in 

Turboméca MSB N° A319 73 2012.

Effective Date: 05 December 2012

Required Action(s) 

and Compliance

Time(s):

Required as indicated, unless accomplished previously:

(1) Before exceeding 200 operating hours accumulated by the fuel injection 

manifolds and privilege injector since new, or since last inspection in 

accordance with the instructions of Turboméca MSB N° A319 73 2012, as 

applicable, replace the fuel injection manifolds and privilege injector with 

serviceable fuel injection manifolds and a privilege injector.

(2) From the effective date of this AD, do not install fuel injection manifolds or 

a privilege injector on an engine, or an engine on a helicopter, unless the 

fuel injection manifold or privilege injector has accumulated less than 200

operating hours since new, or since last inspection in accordance with the 

instructions of Turboméca MSB N° A319 73 2012, as applicable.

Ref. Publications: TURBOMECA MSB A319 73 2012 issue I dated 12 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. Based on the required actions and the compliance 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:

Turboméca, S.A., ARRIUS Customer Support, 40220 TARNOS, FRANCE. 

Fax: +33 5 59 74 45 15; or contact your nearest technical representative at 

www.turbomeca-support.com.