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 incorporationPrinted in Great Britain Sep.25/06

RB211 TRENT 700 SERIES PROPULSION SYSTEM SERVICE BULLETIN



# RB.211−72−F117 Transmittal - Page 1 of 2 Signed DateLIST 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.25/06Printed in Great Britain



# RB.211−72−F117 Transmittal - Page 21. Planning Information A. Effectivity (1) Airbus A330 (a) RB211 TRENT768-60, TRENT768-60/15, TRENT768-60/16 Engines prior to Serial No.41427 except for 41425. R RB211 TRENT772-60, TRENT772-60/15, TRENT772-60/16 Engines prior to Serial No.41427 except for 41425. R 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 Serial No41427 except for .41425. R 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 Serial No.41427 except for 41425. R 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-F117Printed in Great Britain



# RB.211−72−F117 Page 1 of 14 Jun. 6/06 Sep.25/06 RC. 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 Sep.25/06 R(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 Sep.25/06 R(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 Sep.25/06 R(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 bulletinPrinted in Great Britain



# RB.211−72−F117 Page 5 Jun. 6/06 Sep.25/06 RI. 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 Sep.25/06 R2. 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 SBPrinted in Great Britain



# RB.211−72−F117 Page 7 Jun. 6/06 Sep.25/06 RFIG 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 Sep.25/06 RD. 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 Sep.25/06 R3. 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 equipmentPrinted in Great Britain



# RB.211−72−F117 Page 10 Jun. 6/06 Sep.25/06 RConsumable 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 Sep.25/06 RPROCEDURE (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 Sep.25/06 RFig.1Printed in Great Britain



# RB.211−72−F117 Page 13 Jun. 6/06 Sep.25/06 RFig.2Printed in Great Britain



# RB.211−72−F117 Page 14 Jun. 6/06 Sep.25/06 RSUPPLEMENT - 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-F117Printed in Great Britain



# RB.211−72−F117 Supplement Page 1 of 1 Jun. 6/06 Sep.25/06 R