EASA AD No :2008-0194 

EASA Form 110 Page 1/3 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2008-0194 

Date: 31 October 2008 

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 Airworthiness Directive applies, except in accordance with the requirements of that Airworthiness 

Directive 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]. 

Type Approval Holder’s Name : 

TURBOMECA 

Type/Model designation(s) : 

TURMO turboshaft engines 

TCDS Number : DGAC France M8 

Foreign AD : Not applicable 

Supersedure : This AD supersedes EASA AD 2007-0254 dated 14 September 2007. 

ATA 72 Engine - Flexible lubrication pipes - 

Inspection/Replacement 

Manufacturer(s): Turbomeca 

Applicability: All TURMO IV turboshaft engines fitted with oil pipes Part Number 

(P/N) 0 249 92 813 0 or P/N 0 249 92 916 0 or P/N 0 249 92 808 0. 

These engines are known to be installed in, but are not limited to, 

Eurocopter SA 330 F, G and J PUMA helicopters. 

Reason: Several occurrences of deterioration of: 

- the oil pipe P/N 0 249 92 813 0 installed on TURMO III C4 between the oil 

cooler and the tank; and of 

- the oil pipe P/N 0 249 92 808 0 installed on TURMO III C4 and TURMO IV 

C between the intermediate bearing and the oil pump; 

have been reported to Turbomeca. Most, but not all, reported occurrences 

concerned military models. Such deterioration and oil leakage can lead to 

commanded engine in flight shut down. 

The cause of the pipe deterioration is linked to a manufacturing process 

change applied by the manufacturer of the pipes in 2003. 

The present AD retains requirements of the superseded AD 2007-0254 (which 

had superseded EASA AD 2007-0061-E) and in addition mandates Turbomeca 

Service Bulletin 249 72 0233 or modification TU 233 (replacement of flexible 

lubrication pipe between intermediate bearing and oil pump) for engines equipped 

with a pipe P/N 0 249 92 808 0 vulcanised in the 2nd quarter of 2003 or later. 

Modification TU 233 introduces a new pipe, P/N 9 560 17 606 0, which allows the 
EASA AD No :2008-0194 

EASA Form 110 Page 2/3 

maintenance to be limited to the activities defined in the Maintenance Manual. 

Effective Date: 14 November 2008 

Required Action(s) 

and Compliance 

Time(s): 

PREVIOUS REQUIREMENTS OF AD 2007-0254 

1. For engines equipped with oil pipe P/N 0 249 92 813 0 or 

P/N 0 249 92 916 0 or P/N 0 249 92 808 0, unless already performed, the 

following actions are mandatory, from 09 March 2007 (the effective date of 

AD 2007-0061-E). 

Before next flight: 

- Identify the vulcanisation batch of the oil pipe. 

- If the pipe was vulcanised in the 2nd quarter of 2003 or later (ex.: marking 

2T03 refers to the 2nd quarter of 2003): 

- Inspect the oil filter for black particles which could come from 

internal deterioration of the pipe. 

- Inspect the engine bay for possible oil leakage from the pipe. 

- Perform a boroscope inspection of the pipe. 

2. If both engines installed on a given helicopter are equipped with pipes 

P/N 0 249 92 813 0 or P/N 0 249 92 916 0 which where vulcanised after the 

first quarter of 2003, replace one of the two pipes before the next flight. 

3. After 25 additional Flight Hours (FH), repeat the inspections required by 

paragraph 1 of this AD. 

4. For engines equipped with oil pipe P/N 0 249 92 813 0 or 

P/N 0 249 92 916 0 vulcanised in the 2nd quarter of 2003 or later, within 

the next 50 FH after 28 September 2007 (the effective date of AD 2007-

0254) or before 31 December 2007, whichever occurs first, replace the 

pipe with P/N 9 560 17 601 0 per modification TU 231. 

NEW REQUIREMENT OF THIS AD: 

5. For engines equipped with oil pipe P/N 0249 92 808 0 vulcanised in the 2nd 

quarter of 2003 or later, within the next 50 FH after the effective date of this 

AD or before 31 December 2008 whichever occurs first, replace the pipe 

with P/N 9 560 17 606 0 per modification TU 233. 

NOTE 1: Inspection for oil leak before and after flight, and inspection of the oil filter 

every 25 hours, as defined in the Engine Maintenance Manual, remain applicable. 

NOTE 2: The detailed procedures to comply with the requirements of this AD are 

defined in the referenced TURBOMECA Mandatory Service Bulletins A249 72 0802, 

249 72 0231 and 249 72 0233. 

Ref. Publications: 

TURBOMECA Mandatory Service Bulletin A249 72 0802 Update No. 2 

TURBOMECA Mandatory Service Bulletin 249 72 0231 Original issue 

TURBOMECA Mandatory Service Bulletin 249 72 0233 Original issue 

The use of later approved revisions of the above documents is acceptable for 

compliance with the requirements of this AD. 

TURBOMECA Maintenance Manual 279 02 931. 

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

Alternative Methods of Compliance for this AD. 

2. This AD was posted on 22 September 2008 as PAD 08-108 for 

consultation until 16 October 2008. No comments were received during 
EASA AD No :2008-0194 

EASA Form 110 Page 3/3 

the consultation period. 

3. Enquiries regarding this AD should be referred to the Airworthiness 

Directives, Safety Management & Research Section, Certification 

Directorate, EASA. E-mail ADs@easa.europa.eu 

4. For any questions concerning the technical content of the requirements in 

this AD, please contact: Operator Support TURMO - TURBOMECA 

40220 TARNOS – FRANCE 

Phone: +33 (0)5 59 74 40 00 Fax: +33 (0)5 59 74 45 15 

or refer to your nearest TURBOMECA technical representative on 

http://www.turbomeca-support.com