EASA AD No.: 2008-0098 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2008-0098 

Date: 21 May 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 : 

ROLLS-ROYCE PLC 

Type/Model designation(s) : 

RB211 Trent 500 Series Engines 

TCDS Number : EASA E.060 

Foreign AD : Not applicable 

Supersedure : None 

ATA 72 Engine – Low Pressure Turbine (LPT) Stage 3 Discs – Life 

Reduction 

Manufacturer(s): Rolls-Royce plc 

Applicability: Models RB211 Trent 553-61, 556-61, 556B-61, 560-61, 553A2-61, 556A2-

61, 556B2-61 and 560A2-61 engines, all serial numbers. 

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

Airbus A340-500 and A340-600 series aircraft. 

Reason: Recent analysis of the LP Turbine Discs 1-5 carried out by Rolls-Royce plc 

concluded that it is necessary to reduce the Declared Safe Cyclic Life (DSCL) of 

all Trent 500 LPT Stage 3 Discs, Part Number (P/N) FK29581. 

EASA concurs with this conclusion and therefore this Airworthiness Directive 

requires replacement of LPT Stage 3 Discs P/N FK29581 at a cyclic life which is 

lower than the one originally published in the applicable Time Limits Manual. 

Effective Date: 04 June 2008 

Required action(s) and 

Compliance Time(s): 

Required as indicated, unless previously accomplished: 

(1) After the effective date of this AD, each LPT Stage 3 Disc P/N FK29581 

must be removed from service and replaced with a serviceable disc before 

accumulating 7 990 Cycles Since New (CSN), in accordance with the 

instructions of Rolls-Royce RB211 Propulsion System Non Modification Service 

Bulletin RB211-72-AF781; 
EASA AD No.: 2008-0098 

EASA Form 110 Page 2/2 

(2) After the effective date of this AD, no person shall install a spare LPT 

Stage 3 Discs P/N FK29581 on any engine or aircraft, unless it has been verified 

that the part has not yet accumulated 7 990 CSN. 

Ref. Publications: Rolls-Royce RB211 Propulsion System Non Modification Service Bulletin 

RB211-72-AF781 dated 02 April 2008. 

The use of later approved revisions of this 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. This AD was posted on 07 April 2008 as PAD 08-018 for consultation 

until 05 May 2008. No comments were received during 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 question concerning the technical content of the requirements in 

this AD, please contact: 

Rolls-Royce plc. PO Box 31, Derby, DE24 8BJ, United Kingdom; 

telephone +44 (0) 1332 242424; facsimile +44 (0) 1332 249936. 

Email: tech.help@rolls-royce.com or download the publication from 

https://www.aeromanager.com