EASA AD No.: 2010-0188 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2010-0188 

Date: 20 September 2010 

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 AD applies, except in accordance with 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]. 

Type Approval Holder’s Name : 

Rolls-Royce plc 

Type/Model designation(s) : 

RB211 Trent 800 series engines 

TCDS Number : UK CAA 1051 

Foreign AD : Not applicable 

Supersedure : None 

ATA 73 Engine – Fan Case Low Pressure Fuel Tubes and Clips - 

Inspection/Replacement 

Manufacturer(s): Rolls-Royce plc 

 Applicability: Models RB211 Trent 895-17, 892-17, 892B-17, 884-17, 884B-17, 877-17 

and 875-17. 

These engines are known to be installed on, but not limited to, Boeing 777 

series aeroplanes. 

Reason: Fuel leaks from the engine have occurred in-service due to damage to 

sections of the fan case Low Pressure (LP) fuel tubes which run between the 

Low Pressure and the High Pressure (HP) fuel pumps. This damage has 

been caused by frettage between the securing clips and the tube outer 

surface, which has caused localised thinning of the tube wall thickness. The 

thinning of the tube wall causes the tube to fracture and fuel loss to occur. In 

one case, fuel loss in excess of 10 000 pounds (lbs) occurred. 

Fuel leaks, if not detected early enough or if not correctly managed, could 

lead to potential unsafe conditions such as critical fuel unbalance or in-flight 

fuel starvation. Fuel leak detection and the associated aeroplanes 

procedures can be complex, leading to some flight crews failing to detect 

and/or address such situations. EASA has initiated reviews of fuel leak 

management procedures. This AD is issued as a precautionary measure to 

mitigate the risk of in-flight fuel starvation identified as a result of the 

existence of a known cause of fuel leaks. 

This AD requires inspection and, if necessary, replacement of fan case LP 

fuel tubes and clips.
EASA AD No.: 2010-0188 

EASA Form 110 Page 2/2 

Effective Date: 04 October 2010 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated: 

(1) Initial Inspection 

Inspect and, if necessary, replace the fan case LP fuel tubes (Part 

Numbers (P/N) FK22617, FK19213 and FK23986) and the relevant 

associated clips, in accordance with Rolls-Royce NMSB 73-D685 issue 

3 before the accumulation of 3 000 hours since new, or 3 000 hours 

since last inspection accomplished before the effective of the effective 

date of this AD in accordance with Rolls-Royce NMSB 73-D685 issue 3 

or within 2 000 hours after the effective date of this AD, whichever 

occurs latest. 

(2) Repetitive Inspection 

Following accomplishment of the initial inspection in compliance with the 

requirements of paragraph (1) of this AD, repeat the inspection at 

intervals not exceeding 3 000 hours, and, if necessary, replace the fan 

case LP fuel tubes (P/N FK22617, FK19213 and FK23986) and the 

relevant associated clips in accordance with. Rolls-Royce NMSB 73-

D685 issue 3. 

(3) Replacement of the fan case LP fuel tubes (P/N FK22617, FK19213 and 

FK23986) and the relevant associated clips with serviceable parts does 

not constitute terminating action for the inspection requirements of this 

AD.

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

RB211-73-D685 revision 3 dated 18 August 2009. 

The use of later approved revisions 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 issued as PAD 10-013 on 21 January 2010 for consultation 

until 18 February 2010. This AD has been changed in comparison with 

the PAD 10-013, introducing less stringent requirements. 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 questions concerning the technical content of the requirements 

in this AD, please contact: 

Your designated Rolls-Royce representative or download the publication 

from your Aeromanager account at www.aeromanager.com. If you do 

not have a designated representative or Aeromanager account, please 

contact Corporate Communications at Rolls-Royce plc. PO Box 31, 

Derby, DE24 8BJ, United Kingdom. Phone: +44 (0) 1332 242424, or email from http://www.rolls-royce.com/contact/civil_team.jsp identifying 

the correspondence as being related to Airworthiness Directives.