This document transmits Revision 2 to Service Bulletin RB211-72-F117 and Revision

2 to the Supplement

Document History

Service Bulletin Revision Status Supplement Revision Status

Initial Issue Jun.6/06 Initial Issue Jun.6/06

Revision 1 Sep.14/06 Revision 1 Sep.14/06

Bulletin Revision 2

Remove Incorporate Reason for change

All pages of the

Service Bulletin

Pages 1 to 14 of the

Service Bulletin

Revised engine incorporation

Supplement Revision 2

Remove Incorporate Reason for change

All pages Page 1 Revised engine incorporation

Printed in Great Britain

Sep.25/06

RB211 TRENT 700 SERIES PROPULSION SYSTEM SERVICE BULLETIN

RB.211−72−F117

Transmittal - Page 1 of 2

Signed Date
LIST OF EFFECTIVE PAGES

The effective pages to this Service Bulletin following incorporation of Revision

2 to the Bulletin and Revision 2 to the Supplement are as follows:

Page Revision Number Revision Date

Bulletin

R 1 2 Sep.25/06

R 2 2 Sep.25/06

R 3 2 Sep.25/06

R 4 2 Sep.25/06

R 5 2 Sep.25/06

R 6 2 Sep.25/06

R 7 2 Sep.25/06

R 8 2 Sep.25/06

R 9 2 Sep.25/06

R 10 2 Sep.25/06

R 11 2 Sep.25/06

R 12 2 Sep.25/06

R 13 2 Sep.25/06

R 14 2 Sep.25/06

Supplement

R 1 2 Sep.25/06

Printed in Great Britain

RB.211−72−F117

Transmittal - Page 2
1. Planning Information

A. Effectivity

(1) Airbus A330

(a) RB211 TRENT768-60, TRENT768-60/15, TRENT768-60/16 Engines prior to

R Serial No.41427 except for 41425.

RB211 TRENT772-60, TRENT772-60/15, TRENT772-60/16 Engines prior to

R Serial No.41427 except for 41425.

RB211 TRENT129AA, TRENT130AA, TRENT131AA, TRENT132AA, TRENT133AA,

TRENT134AA, TRENT135AA, TRENT136AA, TRENT137AA, TRENT138AA,

TRENT139AA, TRENT140AA, TRENT141AA, TRENT142AA Core Engines

RB211 M05821AA, M05821AB, M05825AA, M05825AB, M05826AA, M05827AA,

M05828AA, M05829AA M05 Modules

(b) RB211 TRENT772B-60, TRENT772B-60/15, TRENT772B-60/16 Engines prior to

R Serial No41427 except for .41425.

RB211 TRENT129AA, TRENT130AA, TRENT135AA, TRENT136AA, TRENT137AA,

TRENT138AA, TRENT139AA, TRENT142AA Core Engines

RB211 M05825AA, M05825AB, M05826AA, M05829AA M05 Modules

(c) RB211 TRENT772C-60, TRENT772C-60/15, TRENT772C-60/16 Engines prior to

R Serial No.41427 except for 41425.

RB211 SE1000390, SE100411, SE100412, SE100413 Core Engines

RB211 M05100395 M05 Module

B. Concurrent Requirements

None.

ENGINE - HP/IP BEARING SUPPORT - INTRODUCTION OF A REVISED HP/IP TURBINE BEARINGS

SUPPORT STRUCTURE WITH DELETED OIL FEED TUBE OUTER HEATSHIELD - MOD.72-F117

Printed in Great Britain

RB.211−72−F117

Page 1 of 14

Jun. 6/06

R Sep.25/06
C. Reason

(1) Problem

Frettage damage may occur on the oil feed tube within the HP/IP turbine

bearings support which can result in oil leakage into the IP nozzle guide

vane and areas adjacent to the HP/IP support structure. The frettage is

attributed to contact with the tubes outermost heatshield, which may crack

under thermal distress around one of the attaching clips and become

detached and free to move on the oil tube, resulting in frettage damage to

the tube wall.

The problem of frettage damage has been known to affect other oil service

tubes for the HP/IP turbine bearing chamber and Rolls-Royce RB211 Service

Bulletin 72-E708 has been issued to delete the outermost insulating

heatshields from the oil vent and scavenge service tubes. Rolls-Royce

RB211 Service Bulletin 72-E708 is a basic feature of all Trent 772C-60

series engines.

(2) Evidence

There have been two in-flight shut down events due to high oil

consumption, resulting in engine removal. A further engine was removed due

to a gradual increase in oil consumption. In each case, investigation

revealed severe frettage damage to the oil feed tube with resulting tube

breach.

(3) Substantiation

The changes introduced by this Service Bulletin have been the subject of

extensive, satisfactory engineering analysis.

(4) Objective

Incorporation of this Service Bulletin is designed to maintain

reliability.

(5) Effect of Bulletin on:

(a) Operation

Not affected

(b) Maintenance

Not affected

(c) Overhaul

Affected (See Other Publication Affected (L))

Printed in Great Britain

RB.211−72−F117

Page 2

Jun. 6/06

R Sep.25/06
(d) Repair Schemes

Affected.

(e) Interchangeability

Not affected.

D. Description

(1) This Service Bulletin introduces a revised HP/IP turbine bearings support

structure, similar to the existing item but incorporating changes to

eliminate the possibility of frettage damage occurring between the outer

section of the HP/IP turbine bearings oil service feed tube and associated

outer insulation heatshield.

The changes introduced are:

(a) The outermost insulating heatshield on the oil feed tube is deleted,

together with the two retaining clips and rivets.

(2) Existing HP/IP turbine bearings support structures may be reworked.

(3) This Service Bulletin is in 9 parts for RB211 Trent 768-60, Trent 772-60,

Trent 772B-60 Series Engines and in 9 parts for RB211 Trent 772C-60 Series

Engines as follows:

(a) All RB211 TRENT768-60, TRENT772-60, TRENT772B-60 Series Engines:

(i) Part 1

New production.

(ii) Part 2

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 1.

(iii) Part 3

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 2.

(iv) Part 4

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 3.

Printed in Great Britain

RB.211−72−F117

Page 3

Jun. 6/06

R Sep.25/06
(v) Part 5

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 4.

(vi) Part 6

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 5.

(vii) Part 7

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 6.

(viii) Part 8

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 7.

(ix) Part 9

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-E708 Part 8.

(b) All RB211 TRENT772C-60 Series Engines:

(i) Part 1

New production.

(ii) Part 2

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D170 Part 8.

(iii) Part 3

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D170 Part 11.

(iv) Part 4

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D170 Part 9.

(v) Part 5

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D170 Part 10.

Printed in Great Britain

RB.211−72−F117

Page 4

Jun. 6/06

R Sep.25/06
(vi) Part 6

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D119 Part 3.

(vii) Part 7

Application utilising a reworked HP/IP turbine bearings support

assembly to modification 72-D119 Part 4.

(viii) Part 8

Application utilising a reworked HP/IP turbine bearings support

assembly to pre-modification 72-D119 Part 3.

(ix) Part 9

Application utilising a reworked HP/IP turbine bearings support

assembly to pre-modification 72-D119 Part 4.

E. Compliance

RECOMMENDED

It is recommended that this Service Bulletin be accomplished on

engines/powerplants when the engine or module is disassembled for refurbishment

or overhaul.

F. Approval

Modification 72-F117 was approved by a representative of the European Aviation

Safety Agency (EASA), under Technical Visa No.EASA.E.C.01201 on Jun. 1/06.

G. Manpower

(1) In service

Not affected

(2) At overhaul

1 man hour

NOTE: The parts affected by this Service Bulletin are accessible at overhaul.

H. Material Price and Availability

Modification kit not required; parts supplied as single line items.

For prices and availability of future spares see supplement to this bulletin

Printed in Great Britain

RB.211−72−F117

Page 5

Jun. 6/06

R Sep.25/06
I. Tooling Price and Availability

Special tools are not required.

J. Weight and Balance

(1) Weight Change

None.

(2) Moment Arm

No effect.

(3) Datum

Power Plant Station (PPS) 100.

K. References

(1) Rolls-Royce RB211 Service Bulletins:

(a) 72-D119

Engine - HP/IP turbine bearing support - Introduction of a revised oil

tube end fittings.

(b) 72-D170

Engine - HP/IP bearing support - Introduction of a revised HP/IP

turbine bearings support assembly with strengthened hub.

(c) 72-E708

Engine - HP/IP bearing support - Introduction of a revised HP/IP

turbine bearings support structure with repositioned HP3 cooling air

holes and deleted oil service tube heatshields.

(2) Engine Manual, 72-51-20, Disassembly and Assembly.

L. Other Publications Affected

(1) For effect on Illustrated Parts Catalogue (IPC) refer to 2. Material

Information.

(2) Engine Manual, 72-51-24, Inspection/Check

M. Interchangeability of Parts

Not affected.

Printed in Great Britain

RB.211−72−F117

Page 6

Jun. 6/06

R Sep.25/06
2. Material Information

A. The kit required consists of the following parts:

None.

B. Parts to be reworked:

All Engines, Core Engines and M05 Modules

72-51-24

Part 2 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47427 1 Support, assy of HP/IP

turbine bearings

- FW34763 (1)

Part 3 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47428 1 Support, assy of HP/IP

turbine bearings

- FW34985 (1)

Part 4 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47430 1 Support, assy of HP/IP

turbine bearings

- FW34986 (1)

Part 5 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47431 1 Support, assy of HP/IP

turbine bearings

- FW34987 (1)

Part 6 of SB

Printed in Great Britain

RB.211−72−F117

Page 7

Jun. 6/06

R Sep.25/06
FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47435 1 Support, assy of HP/IP

turbine bearings

- FW35786 (1)

Part 7 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47433 1 Support, assy of HP/IP

turbine bearings

- FW34989 (1)

Part 8 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47436 1 Support, assy of HP/IP

turbine bearings

- FW35788 (1)

Part 9 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47432 1 Support, assy of HP/IP

turbine bearings

- FW34988 (1)

C. New production parts:

The following parts will be made available as future spares in addition to

those listed under B:

All Engines, Core Engines and M05 Modules

72-51-24

Part 1 of SB

FIG

ITEM

NO.

NEW

PART

NO.

QTY PART TITLE MAT OLD

PART

NO.

INSTR

DISP

02200 FW47425 1 Support, assy of HP/IP

turbine bearings

- FW34763 (1)

Printed in Great Britain

RB.211−72−F117

Page 8

Jun. 6/06

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D. Instruction disposition codes:

(1) Old and new parts are freely and fully interchangeable.

Printed in Great Britain

RB.211−72−F117

Page 9

Jun. 6/06

R Sep.25/06
3. Accomplishment Instructions

A. The revised HP/IP turbine bearings support structure introduced by this Service

Bulletin is interchangeable with the existing. Remove and install in accordance

with current overhaul procedure (Engine Manual, 72-51-20, Disassembly and

Assembly).

B. Rework existing component

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34763

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34985

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34986

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34987

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW35786

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34989

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW35788

IPC ATA number 72-51-24,

fig-item 02-200

HP/IP Bearing Support

Assembly

FW34988

GENERAL DATA

Source demonstration is not necessary for the purposes detailed in the rework

instruction.

Overhaul Processes (OP) referenced in the text by Task/Subtask number are

detailed in the Engine Overhaul Processes Manual, TSD594-J.

Material of Component

Description RR Symbol Material

HP/IP Bearing Support

Structure

EAD Jethete

EQUIPMENT AND MATERIAL

Standard Equipment

hand held tools

degreasing equipment

vibration peen equipment

Printed in Great Britain

RB.211−72−F117

Page 10

Jun. 6/06

R Sep.25/06
Consumable Materials

Omat 653 fluorescent penetrant

NOTE: (1) To identify consumable materials, refer to Overhaul Materials

Manual (OMat).

(2) Additional consumable materials are included in Overhaul Processes

referenced within this rework

Special Tools

None

REWORK INSTRUCTIONS

(1) Remove the Outer Heatshield Cover from the Oil Feed Pipe

PROCEDURE

(a) Remove the clamps from the

ends of the heat shield cover.

RELATED DATA

Refer to Fig 1 and 2. Drill out or

dress to remove the rivets. Use hand

tools.

(b) Remove the heat shield cover

and insulating material

Use hand tools

(c) Locally remove the grease Refer to OP TASK 70-00-00-100-101 or

OP TASK 70-00-00-100-102. Use

degreasing equipment

(d) Inspect the tubes for damage Refer to EM TASK 72-51-24-200-801.

Reject if outside limits.

(e) Examine the part Refer to Fig 1 and Fig 2. Ensure

outer heatshield has not been fitted.

Printed in Great Britain

RB.211−72−F117

Page 11

Jun. 6/06

R Sep.25/06
PROCEDURE

(f) Renumber component

RELATED DATA

Refer to OP TASK 70-00-00-300-363.

Use vibration peen equipment. Cancel

the existing HP/IP Bearing Support

Assembly part number with a single

line. Re-identify using the new part

number adjacent to the cancelled

number as follows:-

Existing Part

Number

New Part Number

FW34763 FW47427

FW34985 FW47428

FW34986 FW47430

FW34987 FW47431

FW35786 FW47435

FW34989 FW47433

FW35788 FW47436

FW34988 FW47432

C. A record of accomplishment is required.

Printed in Great Britain

RB.211−72−F117

Page 12

Jun. 6/06

R Sep.25/06
Fig.1

Printed in Great Britain

RB.211−72−F117

Page 13

Jun. 6/06

R Sep.25/06
Fig.2

Printed in Great Britain

RB.211−72−F117

Page 14

Jun. 6/06

R Sep.25/06
SUPPLEMENT - PRICES AND AVAILABILITY

This is a technical document not a quotation; any prices and delivery given are in

good faith without engagement

Alternative parts may be supplied instead of parts listed. See Material Information

disposition instructions

1. Modification Kit

Not applicable. Parts supplied as single line items.

2. New Production or Reworked Parts:

Part No. Qty

Unit Price

US Dollars

FW47425 1 Price supplied on request

FW47427 1 Price supplied on request

FW47428 1 Price supplied on request

FW47430 1 Price supplied on request

FW47431 1 Price supplied on request

FW47435 1 Price supplied on request

FW47433 1 Price supplied on request

FW47436 1 Price supplied on request

FW47432 1 Price supplied on request

3. Tools:

None

ENGINE - HP/IP BEARING SUPPORT - INTRODUCTION OF A REVISED HP/IP TURBINE BEARINGS

SUPPORT STRUCTURE WITH DELETED OIL FEED TUBE OUTER HEATSHIELD - MOD.72-F117

Printed in Great Britain

RB.211−72−F117

Supplement Page 1 of 1

Jun. 6/06

R Sep.25/06