EASA AD No : 2009-0243R1

EASA Form 110 Page 1/4 

## EASA AIRWORTHINESS DIRECTIVE

AD No.: 2009-0243R1

Date: 26 November 2009

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 parti cipate 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 a pplicable ADs. Consequently, no person may operate an aircraft to which an Airworthiness Directive applies, exc ept in accordance with the requirements of that Airworthine ss 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) :
RB211-524 Series Engines RB211-535 Series Engines RB211 Trent 700 Series Engines RB211 Trent 800 Series Engines

TCDS Number : EASA.E.042, UK-CAA TCDS Numbers 1046, 1048, 1051, 1044 and 1049

Foreign AD : None

Revision : This AD revises AD 2009-0243 dated 10 November 2009



### ATA 72 Engine – Front Combustion Liner Inner Wall – Inspection

Manufacturer(s): Rolls-Royce plc

Applicability: 1. RB211-524 Series E ngines, models RB211-524G2-T-19, RB211- 524G3-T-19, RB211-524H2-T-19, all se rial numbers, if Rolls-Royce RB211 Service Bulletin No. 72-D133 or Rolls-Royce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be installe d on, but not limited to Boeing 747- 400 series aircraft. 2. RB211-524 Series Engines, models RB211-524H-T-36, all serial numbers, if Rolls-Royce RB211 Servic e Bulletin No. 72-D133 or RollsRoyce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be instal led on, but not limited to Boeing 767 series aircraft. 3. RB211-535 Series Engines, models RB211-535E4-37, RB211-535E4- B-37, RB211-535E4-C-37, all serial numbers, if Rolls-Royce RB211 Service Bulletin No. 72-D133 or Rolls -Royce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be instal led on, but not limited to Boeing 757 series aircraft.EASA AD No : 2009-0243R1

EASA Form 110 Page 2/4 4. RB211-535 Series Engines, model RB211-535E4-B-75, all serial numbers, if Rolls-Royce RB211 Servic e Bulletin No. 72-D133 or RollsRoyce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be installed on, but not limited to Tupolev Tu204 series aircraft. 5. RB211-Trent 700 Series Engines, a ll models, all serial numbers, if Rolls-Royce RB211 Service Bulletin No. 72-D133 or Rolls-Royce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be installe d on, but not limited to Airbus A330 series aircraft. 6. RB211-Trent 800 Series Engines, a ll models, all serial numbers, if Rolls-Royce RB211 Service Bulletin No. 72-D133 or Rolls-Royce RB211 Service Bulletin No. 72-E902 is incorporated. These engines are known to be instal led on, but not limited to Boeing 777 series aircraft.

Reason: Cracking has been found on the inner wall between intermediate dilution chutes on a total of five front combustion liners of the standard corresponding to Rolls-Royce RB211 Service Bulletin No. 72-D133. The lives of two of these liners were conf irmed to be below the currently valid borescope inspection interval. Ultimately, crack propagation could result in hot gas breakout with potential of downstream component distress and multiple turbine blade release beyond containment capabilities of the engine casings. Thus, cracking of this nature constitute s a potentially unsafe condition. Since Rolls-Royce Service Bulletin No. 72-E902 introduces further developments of Rolls-Royce RB211 Service Bulletin No. 72-D133, engines incorporating Rolls-Royce RB211 Service Bulletin No. 72-E902 are also considered to be potentially affected and are therefore included in the applicability of this AD. This AD requires a change to the initial and repeat borescope inspection intervals for the front combustion liner. This AD has been revised in order to clarify the required actions for combustion liners that have been inspec ted before the effective date of the original issue of this AD and in accordance with earlier revisions of Rolls-Royce RB211 Series Propulsion System Series Non-Modification Service Bulletin No. RB211-72-AF458.

Effective Date: Revision 1: 10 December 2009 Original issue: 24 November 2009

Required Action(s) and Compliance Time(s): A. Definition In the following LIFE will be referred as the lowest of the following lives:
- life of the combustion liner since new, - life of the combustion liner since inner wall replacement

- life of the combustion liner since the combustion liner was last inspected in accordance with section 3. Accomplishment instructions, subsection A. Borescope Inspection of Rolls-Royce RB211 Series Propulsion System Series Non-Modification Service Bulletin No. RB211-72-AF458 Revision 2 or later approved revision.

B. Action Required It is required to carry out the borescope inspections as specified in section 3. Accomplishment instructions, subsection A. BorescopeEASA AD No : 2009-0243R1

EASA Form 110 Page 3/4Inspection of Rolls-Royce RB211 Series Propulsion System Series NonModification Service Bulletin No. RB211-72-AF458 Revision 4 or later approved revision before the limits specified in paragraph C. below. C. Inspection Requirements i) Initial Inspection Requirements 1. If the engine has a combustion liner installed with a LIFE (see A. above) that is equal to or greater than the initial inspection threshold specified in Table 1 column (b) included in C.iii) below at the effective date of the original issue of this AD.

or the engine has a combustion liner installed with a LIFE (see A. above) that is not known Carry out the action specified in B. above within 250 cycles after the effective date of the original issue of this AD. 2. If the engine has a combustion liner installed with a LIFE (see A. above) that is less than the initial inspection threshold specified in Table 1 column (b) included in C.iii) below at the effective date of the original issue of this AD, carry out the ac tion specified in B. above before the LIFE (see A. above) has reached the limit specified in Table 1 column (c) included in C.iii) below. ii) Repeat Inspection Requirements Following accomplishment of the Initial Inspection Requirement identified above, carry out the acti on specified in B. above at repeat intervals not exceeding those specified in Table 1 column (d) included in C.iii) below. iii) Table 1: Initial Inspection Thresholds and Limits,

Column (a) Column (b) Column (c) Column (d)

Engine Model Initial Inspection Threshold Initial Inspection Limit

If

LIFE <

Initial Inspection Threshold Repeat Inspection

Interval

RB211-524G2-T-19, 524G3- T-19 and 524H2-T-19 as per Applicability section 1. 1150 Cycles 1400 Cycles 1400 Cycles

RB211-524H-T-36 as per Applicability section 2. 550 Cycles 800 Cycles 800 Cycles

RB211-535E4-37, E4-B-37 and E4-C-37 as per Applicability section 3. 550 Cycles 800 cycles 800 cycles

RB211-535E4-B-75 as per Applicability section 4. 550 Cycles 800 cycles 800 cycles

RB211-Trent 700 Series Engines, all models as per 1250 Cycles 1500 Cycles 1500 CyclesEASA AD No : 2009-0243R1

EASA Form 110 Page 4/4 Applicability section 5.

RB211-Trent 800 Series Engines, all models as per Applicability section 6. 750 Cycles 1000 Cycles 1000 Cycles

Ref. Publications: Rolls-Royce RB211 Series Propulsion System Series Non-Modification Service Bulletin No. RB211-72-AF458 Revision 4. The use of later approved revisions of this 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 original issue of this AD was posted on 28 September 2009 as PAD 09-114 for consultation until 26 October 2009. The Comment Response Document can be found at http://ad.easa.europa.eu

. 3. Enquiries regarding this AD should be referred to the Airworthiness Directives, Safety Management & Re search 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: Rolls-Royce plc ., P.O. Box 31, Derby, DE24 8BJ, United Kingdom Telephone: +44 (0) 1332 242424 Fax: +44 (0) 1332 249936 E-mail: tech.help@rolls-royce.com or download the publication from https://www.aeromanager.com