EASA AD No.: 2013

- 0186

TE. CAP.00110

- 00 3 © European Aviation Safety Agency. All rights reserved. 1 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA

- Internet/Intranet. 

## EASA AIRWORTHINESS DIRECTIVE

AD No

. : 2013

- 0186

Date: 16 August 2013

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 E U 748/2012 , Part 21

. A.3B. In accordan ce 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 ope rate 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 :
EADS

- CASA Type/Model designation(s) :
CN

- 235 and C

- 295 aeroplanes

TCDS Number: EASA.A.186

F oreign AD: Not applicable

Supersedure: None



### ATA 28 Fuel

– Booster Pump

– Inspection / Re placement

Manufacturer(s): EADS

- CASA, formerly Construcciones Aeronáuticas S.A. (CASA)

Applicability: CN

- 235, CN

- 235

- 100, CN

- 235

- 200, CN

- 235

- 300 and C

- 295 aeroplanes , all manufacturer serial numbers (MSN).

Reason: A n occurrence with a CN

- 235 aeroplane has been reported, involving an in

flight problem with the fuel transfer system.

The results of the subse quent investigation revealed damage on the fuel booster pump electrical feeding cable and some burn marks on the pump body and plate (fairing) at the external side of the fuel tank ; confirmed electrical arcing between the wire and pump body; and revealed a s well fuel leakage onto the affected wire

. This condition, if not detected and corrected, could create an ignition source in the fuel tank vapour space, possibly resulting in a fuel tank explosion and loss of the aeroplane. To address this potential unsafe condition, EADS CASA (Airbus Military) issued All Operators Letter (AOL) 235

- 025 and AOL 295

- 025, providing inspection instructions f or the affected fuel booster pumps, Part Number (P/N) 1C12

- 34 and P/N 1C12

- 46.
For the reasons described above, this AD requires a one

- time inspection of the affected fuel booster pumps to detect damage and, depending on findings, replacement of the fuel booster pump. This AD also requires the re porting of all findings to EADS CASA for evaluation.

This AD is considered to b e an interim action and further AD action may follow.EASA AD No.: 2013

- 0186

TE. CAP.00110

- 00 3 © European Aviation Safety Agency. All rights reserved. 2 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA

- Internet/Intranet. Effective Date: 23 August 2013

Required A ction(s) and Compliance Time(s) : Required as indicated, unless accomplished previously: (1) Within the compliance time specified in Table 1 of this AD, as applicable, accomplish a visual inspection of the electrical feeding cables of each fuel booster pump P/N 1C12

- 34 and P/N 1C12

- 46 in accordance with the instructions of paragraph 3.1 of EADS CASA AOL 235

- 025 or AOL 295

- 025 , as applicable to aeroplane Model.

Table 1

– Fuel Booster Pump Inspection
Flight hours (FH) accumulated, on the effective date of this AD, since last fuel booster pump replacement Compliance time

300 FH or more Within 5 flight cycles (FC) after the effective date of this AD

Less than 300 FH Before exceeding 300 FH since last fuel booster pump replacement

, or within 5 FC after the effective date of this AD, whichever occurs later

(2) If, during the inspection as required by paragraph (1) of this AD, damage is detected, before next flight, or within 10 days, provided that during this 10

- day period, the aeroplane is operated under the conditions specified in paragraph 3.1 of EADS CASA AOL 235

- 025 or AOL 295

- 025 , as appli cable, replace the affected fuel booster pump with a serviceable unit in accordance with the instructions of paragraph 3.1 of EADS CASA AOL 235

- 025 or AOL 295

- 025, as applicable to aeroplane Model. (3) Within 7 days afte r the inspection a s required by paragraph (1) of this AD, send an inspection report to EADS CASA

, in accordance with the instructions of , and including the detailed information as requested by, paragraph 3.1 of EADS CASA AOL 235

- 025 or AOL 295

- 025, as applicable to aeroplane Model.

Ref. Public ations: EADS CASA (Airbus Military) AOL 235

- 025, original issue dated 29 July 2013. EADS CASA (Airbus Military) AOL 295

- 025, Revision 01 dated 01 August 2013. The use of later approved revisions of these documents is acceptable for compliance with the requirements of this AD.

Remarks: 1. If requested and appropriately substantiated

, EASA can approve Alternative Methods of Compliance for this AD.

2. Based on t he required actions and the compliance time, EASA have decided to issue a Final AD with Request for Comments

, postponing the public consultation process until after publication

. 3. Enquiries regarding this A D 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: EADS CASA (Airbus Military) Services / Engineering Support Fax: +34 91 585 3127 E

- mail: MTA.TechnicalService@military.airbus.com

.