EASA EAD No.: 2010-0043R1-E

EASA Form 111 Page 1/2 

## EASA EMERGENCY AIRWORTHINESS DIRECTIVE

EAD No.: 2010-0043R1-E

Date: 26 March 2010

Note: This Emergency Airworthiness Directive (EAD) is issued by EASA, acting in accordance with Regulation (EC) No 216/2008 on beha lf of the European Community, its Member States and of the European third countries t hat participate in the activities of EASA under Article 66 of that Regulation

This EAD 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 b e ensured by accomplishing any applicable ADs. Cons equently, no person may operate an aircraft to which an Airworthiness D irective applies, except in accordance with the req uirements of that Airworthiness Directive 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, Ar ticle 14(4) exemption].



### Type Approval Holder’s Name :

EUROCOPTER 

### Type/Model designation(s) :

AS 332 helicopters

TCDS Number : EASA.R.002

Foreign AD : Not Applicable

Revision : This AD revises and replaces EASA AD 20 10-0043-E dated 12 March 2010.



### ATA 29 Hydraulic Power - Hydraulic Pumps - Identification /

Replacement

Manufacturer(s): EUROCOPTER (formerly EUROCOPTER Fr ance)

Applicability: EUROCOPTER AS 332 C, AS 332 C1, AS 3 32 L, AS 332 L1 and AS 332 L2 helicopters, all serial numbers.

Reason: EUROCOPTER has been informed of loss of the Right H and (RH) hydraulic power system on an AS332 L2 helicopter. T he pilot saw the hydraulic system “Low level” warning light comes on during the approach phase.
Investigation has revealed a hydraulic fluid leak f rom the hydraulic pump casing and has shown that the liner of the compensa ting piston was incorrectly positioned. This provoked the deteriora tion of pump seals and was due to a non-compliant repair process. This non e-compliant repair process was used by the following repair stations: HELIKOPTER SERVICE, ASTEC HELICOPTER SERVICE and HELI-ONE.
If this condition occurs on both pumps of a helicop ter, it could result in loss of the RH and Left Hand (LH) hydraulic power system s and consequently may lead to the loss of helicopter controllability.
For the reasons stated above, this Emergency Airwor thiness Directive (EAD) requires the identification of the pumps that are currently installed on the helicopters, and the accomplishment of corre ctive actions (replacement) as necessary.EASA EAD No.: 2010-0043R1-E

EASA Form 111 Page 2/2 This EAD is revised to correct which pumps can be i nstalled in replacement of the above mentioned deteriorated pum ps

Effective Date: Revision 1: 28 March 2010 Original: 14 March 2010

Required action(s) and Compliance Time(s): Required as indicated, unless accomplished previous ly: (1) Within 15 flight hours (FH) after 14 March 2010 [the effective date of the original issue of this EAD], identify whether t he helicopter is equipped with two hydraulic pumps that correspond t o the following MESSIER-BUGATTI pumps Part Number.(P/N) C24160045, C24160045-1, C24160045-100, C24160046, C24160046-1 and C24160046-100 which were overhauled or repaired by HELIKOPTER SERVICE or ASTEC HELICOPTER SERVICE or HELI-ONE bef ore 01 February 2010 inclusive.

(2) If both hydraulic pumps identified as per parag raph (1) of this EAD are installed, before next flight, replace at least one of them in accordance with paragraph 2.B. of EUROCOPTER AS 332 Alert Serv ice Bulletin (ASB) 01.00.78 with either a serviceable pump or a pump reconditioned in accordance with paragraph 3.E. of EUROCOPTER AS 332 ASB 01.00.78.

(3) After 14 March 2010 [the effective date of the original issue of this EAD], do not install on a helicopter any of the fol lowing MESSIERBUGATTI hydraulic pumps: P/N C24160045, C24160045-1

, C24160045-100, C24160046, C24160046-1 and C24160046 -100 which were overhauled or repaired by HELIKOPTER SER VICE or ASTEC HELICOPTER SERVICE or HELI-ONE before 01 Febr uary 2010 inclusive, unless the pump has been reconditio ned in accordance with paragraph 3.E. of EUROCOPTER AS 332 ASB 01.00.78.

(4) After 10 months from 14 March 2010 [the effecti ve date of the original issue of this EAD], flying with any hydraulic pump as identified in paragraph (1) of this EAD is not permitted.

Ref. Publications: EUROCOPTER AS332 Alert Service B ulletin No. 01.00.78 revision 0 dated 11 March 2010.
The use of later approved revisions of this documen t is acceptable for compliance with the requirements of this EAD.

Remarks : 1. If requested and appropriately substantiated, EA SA can approve Alternative Methods of Compliance for this EAD.
2. The safety assessment has requested not to imple ment the full consultation process and an immediate publication a nd notification.
3. Enquiries regarding this EAD should be referred to the Airworthiness Directives, Safety Management & Research Section, C ertification Directorate, EASA. E-mail: ADs@easa.europa.eu

. 4. For any question concerning the technical conten t of the requirements in this EAD, please contact: EUROCOPTER (STDI) - Aé roport de Marseille Provence 13725 Marignane Cedex, France. Telephone +33 (0) 4 42 85 97 97, Fax +33 (0) 4 42 8 5 99 66 E-mail: Directive.technical-support@eurocopter.com

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