EASA AD No.: 2012-0091

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EASA AIRWORTHINESS DIRECTIVE

AD No.: 2012-0091

Date: 25 May 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 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].

Design Approval Holder’s Name:

AIRBUS

Type/Model designation(s):

A310, A300-600 and A300-600ST aeroplanes

TCDS Number: France No. 145 and EASA.A.014

Foreign AD: Not applicable

Supersedure: None

ATA 28 Fuel / Main Transfer System – Inner, Centre and Trim Tank Fuel 

Pump Control Circuit – Modification

Manufacturer(s): Airbus (formerly Airbus Industrie)

Applicability: Airbus A310 and A300-600 aeroplanes, all certified models, all manufacturer 

serials numbers (MSN) and 

Airbus A300F4-608ST aeroplanes, all MSN.

Reason: Prompted by an accident of a Boeing 747-131 (flight TWA800), the FAA 

published Special Federal Aviation Regulation (SFAR) 88, and the Joint 

Aviation Authorities (JAA) published Interim Policy INT/POL/25/12.

In the framework of these requirements, EASA have determined that the 

electrical power supply circuits of certain fuel pumps, installed on A300/A300-

600, A310 and A300-600ST aeroplane, for which the canisters become 

uncovered during normal operation, could, under certain conditions, create an 

ignition source in the tank vapour space.

This condition, if not corrected, could result in a fuel tank explosion and 

consequent loss of the aeroplane. 

To address this potential unsafe condition, Airbus developed a modification 

which includes the installation of Ground Fault Interrupters (GFI) into the inner, 

centre, and trim tank fuel pump control circuits, providing additional system 

protection by electrically isolating the pump in case of a ground fault condition 

downstream of the GFI.

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

fuel pumps control circuit by installing GFI.

Effective Date: 08 June 2012
EASA AD No.: 2012-0091

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Required Action(s) 

and Compliance

Time(s):

Required as indicated, unless accomplished previously:

Within 48 months after the effective date of this AD, accomplish the actions 

specified in paragraph (1), (2) or (3) of this AD, as applicable to aeroplane type

and model: 

(1) For A310-200/-300 series aeroplanes, modify the electrical control circuits 

of the inner, centre and trim (where fitted) tank pumps in accordance with 

the instructions of Airbus Service Bulletin (SB) A310-28-2170 original issue.

(2) For A300-600 aeroplanes, modify the electrical control circuits of the inner, 

centre and trim (where fitted) tank pumps in accordance with the 

instructions of Airbus SB A300-28-6104 original issue.

(3) For A300F4-608ST aeroplanes, modify the electrical control circuits of the 

inner and centre tank pumps in accordance with the instructions of Airbus 

SB A300-28-9018 original issue.

Ref. Publications: Airbus SB A310-28-2170 original issue, dated 28 February 2012.

Airbus SB A300-28-6104 original issue, dated 28 February 2012.

Airbus SB A300-28-9018 original issue, dated 28 February 2012.

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

compliance with requirements of this AD

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

Alternative Methods of Compliance for this AD.

2. This AD was posted on 29 March 2012 as PAD 12-025 for consultation until 

26 April 2012. The Comment Response Document can be found at 

http://ad.easa.europa.eu.

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 SAS – EIAW (Airworthiness Office, 

Telephone: + 33 5 61 18 41 39, Fax: + 33 5 61 93 44 51).