EASA AD No.: 2009-0083 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No: 2009 - 0083 

Date: 16 April 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 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) : 

RB211-524 Series Engines 

TCDS Number : UK-CAA TCDS No. 1043 

Foreign AD : Not applicable 

Supersedure : None 

ATA 72 Engine – Low Pressure Turbine (LPT) Casing – Inspection 

Manufacturer(s): Rolls-Royce plc 

Applicability: RB211-524C2-19 and RB211-524C2-B-19 engines, all serial numbers. 

These engines are known to be installed, but not limited to Boeing 747 

series aircraft. 

Reason: A number of LPT casings have been found cracked during engine shop visit. 

Cracking of the LPT casing reduces the capability of the casing to contain 

debris in the event of an LPT stage 1 blade failure. Therefore, blade failure in 

an engine featuring a cracked LPT casing may result in release of 

uncontained high energy debris. 

For the reason described above, this AD requires repetitive inspections and 

corrective actions, depending on findings. 

Effective Date: 30 April 2009 

Required Action(s) 

and Compliance 

Time(s): 

Initial Inspection Requirements:

1. If at the effective date of this Airworthiness Directive the life of the LPT 

Casing is known and less than 4 500 Cycles Since New (CSN), carry out 

the actions defined in Section 3. Accomplishment Instructions of RollsRoyce Non-Modification Service Bulletin (NMSB) No. 72-AG076 before 

the life of the LPT casing has reached 4 500 CSN. 

2. If at the effective date of this Airworthiness Directive the life of the LPT 
EASA AD No.: 2009-0083 

EASA Form 110 Page 2/2 

Casing is known and greater than or equal to 4 500 CSN and the life of 

the LPT casing since last full Fluorescent Penetrant Inspection (FPI) is 

either known and greater than 4 500 Cycles or not known, carry out the 

actions defined in Section 3. Accomplishment Instructions of RollsRoyce NMSB No. 72-AG076 at the next shop visit. 

3. If at the effective date of this Airworthiness Directive the life of the LPT 

Casing is known and greater than or equal to 4 500 CSN and the life of 

the LPT casing since last full FPI is known and less than 4 500 Cycles, 

carry out the actions defined in Section 3. Accomplishment Instructions 

of Rolls-Royce NMSB No. 72-AG076 before the life of the LPT Casing 

has reached 4 500 Cycles since last full FPI. 

4. If at the effective date of this Airworthiness Directive the life of the LPT 

Casing is not known and the life of the LPT casing since last full FPI is 

either not known or greater than or equal to 4 500 Cycles, carry out the 

actions defined in Section 3. Accomplishment Instructions of RollsRoyce NMSB No. 72-AG076 at the next shop visit. 

5. If at the effective date of this Airworthiness Directive the life of the LPT 

Casing is not known and the life of the LPT casing since last full FPI is 

known and less than 4 500 Cycles, carry out the actions defined in 

Section 3. Accomplishment Instructions of Rolls-Royce NMSB No. 

72-AG076 before the life of the LPT Casing has reached 4 500 Cycles 

since last full FPI. 

Repetitive Inspection Requirements:

Following accomplishment of the actions associated with the initial 

inspection requirements detailed above, carry out the actions defined in 

Section 3. Accomplishment Instructions of Rolls-Royce NMSB No. 

72-AG076 at intervals not exceeding 4 500 Cycles. 

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

(NMSB) No. 72-AG076 

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 09 February 2009 as PAD 09-032 for 

consultation until 09 March 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 & 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. 

Phone: +44 (0) 1332 242424, Fax: +44 (0) 1332 249936. 

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

https://www.aeromanager.com