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 th e 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 opera te an aircraft to which an AD applies, except in accordance with t he requirements of that AD, unless otherwise specified by the Ag ency [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) exemptio n].


### 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 (for merly 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 aeropl anes, all manufacturer serial numbers (MSN), except those on which Airbus modification 201043 has been embodied in production.
Airbus A340-211, A340-212, A340-2 13, A340-311, A340-312, A340-313, A340-541, A340-542, A340-642 and A340-6 43 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, conduct ed 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 generati on, 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 mech anism, or replacement of the RAT actuator with a modified unit.

Effective Date: 28 October 2011EASA 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 accordan ce 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 t he 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-identif y the actuator and the RAT. (1.3) If the supplier is Arkwin and t he 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 paragr aphs (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/N1702934A 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 be en re-identified, as applicable, in accordance with the instructio ns 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 be en 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

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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 tec hnical content of the requirements in this AD, please contact: AIRBUS – Airworthiness Office – EAL. E-mail: airworthiness.A330-A340@airbus.com

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