EASA AD No : 2011-0204 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2011-0204 

Date: 14 October 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 : 

AIRBUS

Type/Model designation(s) : 

A330 and A340 aeroplanes 

TCDS Numbers: EASA.A.004, EASA.A.015 

Foreign AD: Not applicable 

Supersedure: None 

ATA 29 Hydraulic Power – Ram Air Turbine Actuator – Identification / 

Replacement 

Manufacturer(s): Airbus (formerly AIRBUS INDUSTRIE) 

Applicability: Airbus A330-201, A330-202, A330-203, A330-223, A330-243, A330-223F, 

A330-243F, A330-301, A330-302, A330-303, A330-321, A330-322, A330-323, 

A330-341, A330-342 and A330-343 aeroplanes, all manufacturer serial 

numbers (MSN), except those on which Airbus modification 201043 has been 

embodied in production. 

Airbus A340-211, A340-212, A340-213, A340-311, A340-312, A340-313, 

A340-541, A340-542, A340-642 and A340-643 aeroplanes, all MSN, except 

those on which Airbus modification 201043 or 201042 has been embodied in 

production. 

Reason: During a production test flight, a Ram Air Turbine (RAT) did not deploy when 

tested. An investigation, conducted by the RAT manufacturer Hamilton 

Sundstrand (HS) and Arkwin Industries, revealed that the RAT did not deploy 

due to insufficient stroke inside one of the actuator deployment solenoids. 

This condition, if occurring following a total engine flame out, or during a total 

loss of normal electrical power generation, could possibly result in reduced 

control of the aeroplane. 

For the reasons described above, this AD requires the modification of the 

affected RAT actuator deployment mechanism, or replacement of the RAT 

actuator with a modified unit. 

Effective Date: 28 October 2011 
EASA AD No : 2011-0204 

EASA Form 110 Page 2/2 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Within 15 000 flight hours or 36 months, whichever occurs first after the 

effective date of this AD, in accordance with the instructions of Airbus 

Service Bulletin (SB) A330-29-3114 or SB A340-29-4089 or SB A340-29-

5018, as applicable to aeroplane model, accomplish the following actions: 

For A330 and A340-200/300 aeroplanes: 

(1.1) Identify the supplier, Part Number (P/N) and serial number (s/n) of 

the installed RAT actuator. 

(1.2) If the supplier is Arkwin and the identified actuator P/N and s/n are 

listed as already modified in HS SB No. ERPS06M-29-18, but not 

yet re-identified, re-identify the actuator and the RAT. 

(1.3) If the supplier is Arkwin and the identified actuator P/N and s/n are 

listed as not modified in HS SB No. ERPS06M-29-18, replace the 

RAT actuator with a serviceable unit and re-identify the RAT. 

For A340-500/600 aeroplanes: 

(1.4) Identify the P/N and S/N of the installed RAT actuator. 

(1.5) If the identified actuator P/N and s/n are listed as already modified 

in HS SB No. ERPS33T-29-5, but not yet re-identified, re-identify 

the actuator and the RAT. 

(1.6) If the identified actuator P/N and s/n are listed as not modified in 

HS SB No. ERPS33T-29-5, replace the RAT actuator with a 

serviceable unit and re-identify the RAT. 

(2) From the effective date of this AD, do not install on an aeroplane any 

RAT actuator as identified in paragraphs (2.1) and (2.2) of this AD, as 

applicable, except within the provisions of each paragraph. 

(2.1) Any RAT actuator P/N 5912958 or 1211575-001 or any RAT P/N 

1702934A having a s/n listed as affected in HS SB No. ERPS06M29-18, unless the RAT actuator has been replaced with a 

serviceable unit and the RAT has been re-identified, as applicable, 

in accordance with the instructions of Airbus SB A330-29-3114 or 

SB A340-29-4089, as applicable to aeroplane model. 

(2.2) Any RAT actuator P/N 5912536 or 1211526-002 or any RAT P/N 

772722F having a s/n listed as affected in HS SB No. ERPS33T29-5, unless the RAT actuator has been replaced with a 

serviceable unit and the RAT has been re-identified, as applicable, 

in accordance with the instructions of Airbus SB A340-29-5018. 

Ref. Publications : Airbus SB A330-29-3114 original issue dated 18 May 2011. 

Airbus SB A340-29-4089 original issue dated 18 May 2011. 

Airbus SB A340-29-5018 original issue dated 18 May 2011. 

The use of later approved revisions of these documents is acceptable for 

compliance with the requirements of this AD. 

Hamilton Sundstrand SB No. ERPS06M-29-18 and SB No. ERPS33T-29-5, 

both original issue dated 08 March 2011. 

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

Alternative Methods of Compliance for this AD. 

2. This AD was posted on 13 September 2011 as PAD 11-095 for 

consultation until 11 October 2011. 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: AIRBUS – Airworthiness Office – EAL. 

E-mail: airworthiness.A330-A340@airbus.com.