EASA AD No.: 2013

- 0098

- E

TE. CAP.0011 1

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

- Internet/Intranet. 

## EASA EMERGENCY AIRWORTHINESS DIRECTIVE

AD No

. : 201 3

- 0 098

- E

Date: 24 April 2013

Note: This Emergency 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 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 ope rate an aircraft to which an AD applies, except in accordance w ith 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:

EUROCOPTER Type/Model designation(s): EC 225 helicopters

TCDS Number: EASA.R.002

F oreign AD: Not applicable

Supersedure: None



### ATA 76 Engine Controls

– Emerg ency Shutdown / Fuel Shut

- Off and General Cut

- Out Control Tangential Gearboxes

– Check / Lubrication / Replacement

Manufacturer(s): Eurocopter (formerly EUROCOPTER France)

Applicability: EC 225 LP helicopters, all serial numbers

, if equipped with tangential gearboxes Part Number (P/N) 200181 (or Eurocopter’s P/N 704A34112012), all serial number

.

Reason: During maintenance on a helicopter

, jamming of the cockpit left

- hand side (LH) engine emergency shutdown controls w as reported , making impossible to operate both the LH fuel shut

- off handle and the general cut

- out handle

. The subsequent investigation identified that such jamming was orig inated in the LH tangential gearbox

, installed after the two affected handles

, and was a result of corrosion that had developed on the internal bearings of the tangential gearbox

. This condition, if not detected and corrected, could lead to failure to manually operate the helicopter emergency shutdown controls during emergency landing or fire condition

. To address this potential unsafe condition, Eurocopter issued Alert Service Bull etin (ASB) No 76A001

. For the reasons described above, this AD require s, depending on the date of issuance of the helicopter original Certificate of A irworthiness ( CofA ) or the original export CofA , as applicable

, lubrication of the two tangential gearboxe s

or operating load check of the two cockpit fuel shut

- off handles and, depending on findings, accomplishment of applicable corrective actions includingEASA AD No.: 2013

- 0098

- E

TE. CAP.0011 1

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

- Internet/Intranet. lubrication of the tangential gearboxe s and replacement

.

Effective Date: 2 6 April 201 3

Required A ction(s) and Compliance Time(s) : Required as indicated, unless accomplished previously:
(1) For helicopters for which the original CofA or the original export CofA , as applicable, was issued five months or more before the effective date of this AD, accomplish the following actions:
(1.1) W ithin 15 flight hours (FH) or 7 days after the effective date of this AD, whichever occurs first, check the operating load of the two cockpit fuel shut

- off handles in accordance with the instructions of paragraph 3.B.1 of Eurocopter EC225 ASB No 76A001

, and
(1.2) W ithin 6 months after the operating load check as required by paragraph (1.1) of this AD, lubricate the two tangential gearboxes

, and before next flight after tangential ge arboxes lubrication, check the operating load of the associated cockpit fuel shut

- off handles in accordance with the instructions of paragraph 3.B.2 of Eurocopter EC225 ASB No 76A001.
(2) For helicopters for which the original CofA or the original export CofA , as applicable, was issued less than five months before the effective date of this AD, accomplish either actions required by paragraph (2.1) of this AD

or actions required by paragraphs (2.2) and (2.3) of this AD:
(2.1) Within 6 months after the date of issuance of the helicopter original CofA or date of issuance of the original export CofA , as applicable, lubricate the two tangential gearboxes, and before next flight after tangential ge arboxe lubrication, check the operating load of the associated cockpit fuel shut

- off handles in accordanc e with the instructions of paragraph 3.B.2 of Eurocopter EC225 ASB No 76A001.
(2.2) Within 6 months after the date of issuance of the helicopter original CofA or date of issuance of the original export CofA , as applicable, check the operating load of the t wo cockpit fuel shut

- off handles in accordance with the instructions of paragraph 3.B.1 of Eurocopter EC225 ASB No 76A001; and
(2.3) Within 6 months after the operating load check as required by paragraph (2.2) of this AD, lubricate the two tangential gear boxes, and before next flight after tangential ge arbox lubrication, check the operating load of the associated cockpit fuel shut

- off handles in accordance with the instructions of paragraph 3.B.2 of Eurocopter EC225 ASB No 76A001.
( 3 ) If

, during the fuel shut

- off handle operating load check as required by paragraph (1.1) or ( 2. 2) of this AD

, as applicable

, it is determined that an operating load is more than 3 daN, accomplish on the affected tangential gearbox the following actions:
( 3 .1) Before next flight, l ubricate the affected tangential gearbox and after lubrication

, check the operating load of the associated cockpit fuel shut

- off handle in accordance with the instructions of paragraph 3. B.2 of Eurocopter EC225 ASB No 76A001

, and
(3 .2) I f

, during the operating load check as required by paragraph (3.1) of this AD, it is determined that the fuel shut

- off handle operating load is more than 3 daN, before next flight, replace the affected tangential gearbox with a serviceable part

, in accordance with the instructions of paragraph 3.B.3 of Eurocopter EC225 ASB No 76A001

. ( 3.3 ) Corrective actions a ccomplish ed in accordance with paragraph s (3 .1 ) and (3.2) of this AD

, as applicable , terminate the requirementsEASA AD No.: 2013

- 0098

- E

TE. CAP.0011 1

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

- Internet/Intranet. of paragraph (1.2) or (2.3) of this AD, as applicable , for the affected tangential gearbox

. ( 4 ) If, during the fuel shut

- off handle operating load check as required by paragraph (1.2 ) or (2.1) or (2.3) of this AD

, as applicable

, it is determined that an operating load is more than 3 daN, before next flight, replace the affected tangential gearbox with a serviceable part in accordance with the instructions of paragraph 3.B.3 of Eurocopter EC225 ASB No 76A001.
( 5 ) From the effective date of this AD

, installation of a tangential gearbox P/N 200181 (or Eurocopter’s P/N 704A34112012) on a h elicopter is allowed

, provided it is accomplished in accordance with the instructions of paragraph 3.B.3.c of Eurocopter EC225 ASB No 76A001.

Ref. Publications: Eurocopte r EC225 ASB No.76A001 Revision 0 dated 22 April 2013

. The use of later approved revisions of th is document 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. The results of the safety assessment have indicated the need for immediate publication and notification, without the full public consultation process

. 3. Enquiries regarding this A D should be referred to the Safety Informati on 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: EUROCOPTER (STDI)

– Aéroport de Marseille Provence 13725 Marignane Cedex, France; telephone +33 (4) 42 85 97 97; facsimile +33 (4) 42 85 99 66; E

- mail: Directive.technical

- support@eurocopter.com

.