EASA AD No.: 2013-0186

TE.CAP.00110-003 © 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 EU 748/2012, Part 21.A.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:

EADS-CASA

Type/Model designation(s):

CN-235 and C-295 aeroplanes

TCDS Number: EASA.A.186

Foreign AD: Not applicable

Supersedure: None

ATA 28 Fuel – Booster Pump – Inspection / Replacement

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: An occurrence with a CN-235 aeroplane has been reported, involving an inflight problem with the fuel transfer system.

The results of the subsequent 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 as 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 for 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 reporting of all 

findings to EADS CASA for evaluation.

This AD is considered to be an interim action and further AD action may follow.
EASA AD No.: 2013-0186

TE.CAP.00110-003 © 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 Action(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 

applicable, 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 after the inspection as 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. Publications: 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 the 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 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:

EADS CASA (Airbus Military)

Services / Engineering Support 

Fax: +34 91 585 3127

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