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 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 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 be ensured by accomplishing any applicable ADs. Consequently, no person 

may operate an aircraft to which an Airworthiness Directive applies, except in accordance with the requirements 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, Article 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 2010-0043-E dated 12 March 2010. 

ATA 29 Hydraulic Power - Hydraulic Pumps - Identification / 

Replacement 

Manufacturer(s): EUROCOPTER (formerly EUROCOPTER France) 

Applicability: EUROCOPTER AS 332 C, AS 332 C1, AS 332 L, AS 332 L1 and AS 332 

L2 helicopters, all serial numbers. 

Reason: EUROCOPTER has been informed of loss of the Right Hand (RH) 

hydraulic power system on an AS332 L2 helicopter. The pilot saw the 

hydraulic system “Low level” warning light comes on during the approach 

phase. 

Investigation has revealed a hydraulic fluid leak from the hydraulic pump 

casing and has shown that the liner of the compensating piston was 

incorrectly positioned. This provoked the deterioration of pump seals and 

was due to a non-compliant repair process. This none-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 helicopter, it could result in loss 

of the RH and Left Hand (LH) hydraulic power systems and consequently 

may lead to the loss of helicopter controllability. 

For the reasons stated above, this Emergency Airworthiness Directive 

(EAD) requires the identification of the pumps that are currently installed 

on the helicopters, and the accomplishment of corrective 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 installed in 

replacement of the above mentioned deteriorated pumps

Effective Date: Revision 1: 28 March 2010 

Original: 14 March 2010 

Required action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Within 15 flight hours (FH) after 14 March 2010 [the effective date of 

the original issue of this EAD], identify whether the helicopter is 

equipped with two hydraulic pumps that correspond to 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 before 01 

February 2010 inclusive. 

(2) If both hydraulic pumps identified as per paragraph (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 Service 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 following MESSIERBUGATTI hydraulic pumps: 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 before 01 February 

2010 inclusive, unless the pump has been reconditioned in 

accordance with paragraph 3.E. of EUROCOPTER AS 332 ASB 

01.00.78. 

(4) After 10 months from 14 March 2010 [the effective 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 Bulletin No. 01.00.78 revision 0 

dated 11 March 2010. 

The use of later approved revisions of this document is acceptable for 

compliance with the requirements of this EAD. 

Remarks : 1. If requested and appropriately substantiated, EASA can approve 

Alternative Methods of Compliance for this EAD. 

2. The safety assessment has requested not to implement the full 

consultation process and an immediate publication and notification. 

3. Enquiries regarding this EAD 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 EAD, please contact: EUROCOPTER (STDI) - Aéroport de 

Marseille Provence 13725 Marignane Cedex, France. 

Telephone +33 (0) 4 42 85 97 97, Fax +33 (0) 4 42 85 99 66 

E-mail: Directive.technical-support@eurocopter.com.