P.O. Box31, DERBY DE24 8BJ, UK Telephone:44 (0) 1332 242424 Fax: 44 (0) 1332 249936 

# PUBLICATION 

# Rolls-Royce 

# -
TRANSMITTA The technical information contained in this document has been approved underthe authority of - See Planning Information,Approval.
Signed 

# 4, Date Ju1.28/09
N. J.Wright

RB211 TRENT 500, 700 AND 800 SERIES PROPULSION SYSTEMS NON-MODIFICATION SERVICE BULLETIN 

# ALERT

This document transmits Revision 4 to Service Bulletin RB211-72-AF260 Document History Service Bulletin Revision Status Initial Issue Oct.17/06 Revision 1 Jan. 17/07 Revision 2 Ju1.4/07 Revision 3 Sep. 22/08 Bulletin Revision 4 Remove Pages 1 to 12 of the Service Bulletin Supplement Revision Status

Incorporate Pages 1 to 13 of the Service Bulletin

Page 1 and 2 of Appendix 1



# ALERT Reason for change To remove accompl 

### i shment on IP compressor shafts with a life of zero cycles since new, introduce a revised accept/reject criteria and bring the NMSB into line with current SB style. To remove accompl 

### i shment on IP compressor shafts with a life of zero cycles since new, introduce a revised accept/reject criteria and bring the NMSB into line with current SB style.

Transmittal 

### - Page 1 of 2

CHECK THATALL PREVIOUS TRANSMITTALS HAVE BEEN INCORPORATED Ifany have not been received please advise Customer DataServices, Rolls-Royce plc, Derby, England O Rolls-Royce plc (date as above) Printed in Great BritainLIST OF EFFECTIVE PAGES The effective pages to this Service Bulletin following incorporation of Revision 4 are as follows: Page Revision Number Revision Date

Bulletin R 1 4 Jul.28/09 R 2 4 Jul.28/09 R 3 4 Jul.28/09 R 4 4 Jul.28/09 R 5 4 Jul.28/09 R 6 4 Jul.28/09 R 7 4 Jul.28/09 R 8 4 Jul.28/09 R 9 4 Jul.28/09 R 10 4 Jul.28/09 R 11 4 Jul.28/09 R 12 4 Jul.28/09 R 13 4 Jul.28/09 Appendix 1 R 1 4 Jul.28/09 R 2 4 Jul.28/09Printed in Great Britain



# RB.211−72−AF260 Transmittal - Page 21. Planning Information A. Effectivity (1) Boeing 777 RB211 TRENT 800 Engines (2) Airbus A330 RB211 TRENT 700 Engines (3) Airbus A340 RB211 TRENT 500 Engines
B. Reason (1) Problem Cracking of the rear balance land has been found on Trent 800 and Trent 700 IP compressor shafts. The balancing feature and method is similar on Trent 500, Trent 700 and Trent 800 engines. R R R Revision 1 of this Non-Modification Service Bulletin (NMSB) was to revise an illustration (Fig.5). R R Revision 2 of this NMSB was to revise section 3. Accomplishment Instructions to emphasise the retention of balance weights and clamp plates and the quarantine of the IP compressor shaft where inspection acceptance criteria are not met. R R R R Revision 3 of this NMSB was to incorporate revised accept/reject criteria for the recess rear face and introduces accept/reject criteria for both the inner diaphragm rear face and the recess inside diameter. R R R Revision 4 of this NMSB states that this NMSB does not have to be accomplished on IP compressor shafts with a life of zero cycles since new, introduces a revised accept/reject criteria and brings the NMSB into line with current SB style. R R R R (2) Substantiation This NMSB instructs a visual inspection of the IP Compressor shaft rear balance land and to obtain data to support engineering analysis. ENGINE - IP COMPRESSOR SHAFT - VISUAL INSPECTION OF BALANCE LAND - NON-MODIFICATION SERVICE BULLETIN - NON - MOD.72-AF260Printed in Great Britain



# RB.211−72−AF260 Page 1 of 13 Oct.17/06 Jul.28/09 R(3) Effect of Bulletin on: (a) Operation Not affected. R (b) Maintenance Not affected. R (c) Overhaul Not affected. R (d) Repair Schemes Not affected. R (e) Interchangeability Not affected. R C. Description R This NMSB instructs a visual inspection of the IP compressor shaft rear balance land in order to maintain serviceability. R R Inspection results (Appendix 1) shall be sent to Rolls-Royce via your local service representative as soon as practically possible. These results will be used to support engineering analysis. R R R D. Compliance
ALERT (1) This Non-Modification Service Bulletin is subject to a European Aviation Safety Airworthiness Directive EASA AD 2007-0052. R R (2) Initial Issue and revision 1 and 2 of this Non-Modification Service Bulletin is subject to a Federal Aviation Authority Airworthiness Directive FAA AD 2008-18-08. R R R (3) This Non-Modification Service Bulletin should be accomplished at shop visit on all engines sufficiently disassembled to access the Intermediate Pressure (IP) Compressor Module rear face. R R R (4) This NMSB does not need to be accomplished on IP compressor shafts that have a life of zero cycles since new. R RPrinted in Great Britain



# RB.211−72−AF260 Page 2 Oct.17/06 Jul.28/09 RE. Approval The technical content of this Non-Modification Service Bulletin was approved under the authority of Design Organisation Approval EASA.21J.035 on Oct.16/06 and was re-approved on Sep.16/08 and on Jul.20/09. R F. Manpower (1) Time to remove the balance weights 0.25 hours (2) Time to clean and R inspect 0.5 hours (3) Time to refit the balance weights 0.25 hours G. Tooling and Consumables R Special tools are not required. R H. References Engine Manual (EM): R (1) TRENT 500 R TASK 72-32-31-100-830, Clean, TASK 72-32-31-200-801, 72-32-31-200-830, Inspection/Check R R (2) TRENT 700 R TASK 72-32-31-100-804, Clean, TASK 72-32-31-200-801, 72-32-31-200-804, Inspection/Check R R (3) TRENT 800 R TASK 72-32-31-100-804, Clean, TASK 72-32-31-200-801, 72-32-31-200-804, Inspection/Check R R (4) TSD 594J TASK 70-00-00-300-363 R (5) Standard Practices Manual (SPM) TASK 70-51-00-400-000, Torque Tighten Components, 70-12-04-400-000, Lock Threaded Parts, 70-42-11-300-004-003, Repair, FRS6625 R R RPrinted in Great Britain



# RB.211−72−AF260 Page 3 Oct.17/06 Jul.28/09 R2. Material Information A. Parts required to accomplish R this Service Bulletin All Engines R 72-32-31 R
FIG R ITEM R NO. R NEW R PART R NO. R QTY R PART TITLE R MAT OLD PART R NO. R INSTR R DISP R

01-450 R AS44702 R 4 Bolt, 0.190 in. dia R x 0.335 in., VU1653 R - AS44702
- 01-452 R AS44691 R 4 Washer, VU1653 R - AS44691
-Printed in Great Britain



# RB.211−72−AF260 Page 4 Oct.17/06 Jul.28/09 R3. Accomplishment Instructions A. Remove and inspect the balance weights and clamps. R

CAUTION : YOU MUST ALWAYS WEAR COTTON GLOVES WHEN YOU TOUCH THE SHAFT. R (1) Make a careful record of which balance weight and clamp are fitted at each position. Use an OMat 261 temporary marker to indicate the position of each balance weight on the shaft, refer to TSD 594J TASK 70-00-00-300-363. R R R (2) Record the position and weight of each of the balance weights in Appendix 1 for reference during the assembly procedure. R R (3) Remove the balance weight assemblies (balance weight EIPC 72-32-31, Fig./Item No. 01-415/417/419/421/423/425/427, clamp EIPC 72-32-31, Fig./item No.01-455, washer EIPC 72-32-31, Fig./Item No. 01-452 and bolt EIPC 72-32-31,Fig./Item No. 01-450) from the balance land. R R R R (4) Clean the balance weights and clamps in accordance with: R TRENT 500 EM TASK 72-32-31-100-830 R TRENT 700 EM TASK 72-32-31-100-804 R TRENT 800 EM TASK 72-32-31-100-804 R (5) Inspect the balance weights for damage in accordance with: R TRENT 500 EM TASK 72-32-31-200-830, SUBTASK 72-32-31-210-054 R TRENT 700 EM TASK 72-32-31-200-804, SUBTASK 72-32-31-210-099 R TRENT 800 EM TASK 72-32-31-200-804, SUBTASK 72-32-31-210-100 R If no frettage (galling) is found R R Accept, retain weights and discard bolts and washers If frettage (galling) is found on the balance weight R R R Reject

If the balance weight is rejected R R Find and record the weight of the balance weight assembly (balance weight (EIPC 72-32-31, Fig./Item No. 01-415/417/419/421/423/425/427), clamp (EIPC 72-32-31, Fig./Item No. 01-455), washer (EIPC 72-32-31, Fig./Item No. 01-452) and bolt (EIPC 72-32-31, Fig./Item No. 01-450)). This is to aid the Assembly process R R R R R R R R RPrinted in Great Britain



# RB.211−72−AF260 Page 5 Oct.17/06 Jul.28/09 R(6) Inspect the clamps in accordance with: R TRENT 500 TASK 72-32-31-200-830, SUBTASK 72-32-31-210-056 R TRENT 700 TASK 72-32-31-200-804, SUBTASK 72-32-31-210-015 R TRENT 800 TASK 72-32-31-200-804, SUBTASK 72-32-31-210-015 R No damage and not bent R Accept R Damaged or Bent R Reject. R
B. Carry out a visual inspection, of the circumference of the balance land looking for damage. Refer to Fig.1, Fig.2, Fig.3, Fig.4 and Fig.5. R R (1) Clean the areas to be inspected using a dry cloth making sure you do not erase the temporary markings indicating the position of the balance weights. R R R (2) Carry out a visual inspection, using a mirror, a 10x magnifying lens and a torch of the circumference of the balance land, as indicated in Fig.1. R R (a) Any surface of the balance land. R Cracked R Reject R
(b) Outer diaphragm rear face - damage or marks. Refer to: R Trent 800 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-097 R Trent 700 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-041 R Trent 500 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-068 R (c) Recess outside diameter. R Damage or indentation marks on the recess outside diameter near the chamfer with the rear face R R R R R Reject R

Damage or indentation marks more than 1,00 mm (0,039 in.) away from the chamfer with the rear face R R R R R Refer to Trent 800 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-097 R R R Trent 700 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-041 R R Trent 500 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-068 R RPrinted in Great Britain



# RB.211−72−AF260 Page 6 Oct.17/06 Jul.28/09 R(d) Rear face - Damage or marks. R Marks of no discernible depth up to 0,013 mm (0.0005 in.) in depth R R R Accept

Marks of 0,013 mm (0.0005 in.) or greater in depth R R R Reject.

(e) Recess rear face - Damage or marks. R If frettage (galling ) on the recess rear face is less than 4 square mm per scallop R R R R Accept

Frettage (galling) marks on the recess rear face are more than 4 square mm per scallop R R R R Reject

If Frettage (galling) on the recess rear face is 0,051 mm (0.002 in.) or less in depth R R R R Repair, FRS6625 SPM TASK 70-42-11-300-004-003 R R

If Frettage (galling) on the recess rear face is more than 0,051 mm (0.002 in.) in depth R R R R Reject

(f) Recess inside diameter - Damage or marks. Refer to: R Trent 800 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-116 R Trent 700 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-005 R Trent 500 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-068 R (g) Inner diaphragm rear face - Damage or marks. Refer to: R Trent 800 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-097 R Trent 700 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-041 R Trent 500 EM TASK 72-32-31-200-801, SUBTASK 72-32-31-220-068 RPrinted in Great Britain



# RB.211−72−AF260 Page 7 Oct.17/06 Jul.28/09 R(3) Install the balance weight and the clamp in the same position as where they were removed from on the IP Compressor Drum. R R (a) If the balance weights and clamps are found to be serviceable, R (i) Install the balance weights (EIPC 72-32-31, Fig./Item No. 01-415/417/419/421/423/425/427), clamp (EIPC 72-32-31, Fig./Item No. 01-455) with new bolts (EIPC 72-32-31, Fig./Item No. 01-450), new locking washers (EIPC 72-32-31, Fig./Item No. 01-452) in the same position as where they were removed from on the inspected and serviceable IP Compressor Drum. R R R R R R
NOTE : If any balance weights, clamps bolts and washers are replaced, the new weight assembly must be within 0,1 g (0.003 oz) of the original balance weight assembly. R R R (ii) Torque tighten the bolts to 4Nm (35 lbfin.). Refer to Standard Practices Manual, TASK 70-51-00-400-000. R R (iii) Use the locking washers, EIPC 72-32-31, Fig./Item No. 01-452, to lock the bolts, EIPC 72-32-31, Fig./Item No. 01-450, in position. Refer to Standard Practices Manual, TASK 70-12-04-400-000. R R R R (4) If any of the acceptance criteria in Accomplishment Instructions (3.B.(2)) are not met; retain and quarantine the balance weight, balance clamp plate and Compressor Drum and refer to Rolls-Royce via your local representative within 2 weeks of the inspection. R R R R (5) Make sure that all temporary markings produced in Accomplishment Instructions 3.A.(1) are removed. R R C. Record the condition of the balance land on the attached inspection sheet provided in Appendix 1. R R
D. Accomplishment of this Non-Modification Service Bulletin is to be recorded in the engine logbook. R RPrinted in Great Britain



# RB.211−72−AF260 Page 8 Oct.17/06 Jul.28/09 R

## B



## B RECESS OUTSIDE DIA (fig 4) REAR FACE (fig 3), (fig 5)

OUTER DIAPHRAGM REAR FACE RECESS REAR FACE (fig 2) INNER DIAPHRAGM REAR FACE RECESS INSIDE DIA BALANCE

LAND



## A A

def0013696 R

Surfaces to be visually inspected R Fig.1 RPrinted in Great Britain



# RB.211−72−AF260 Page 9 Oct.17/06 Jul.28/09 RR

Frettage (Galling) on the recess rear face (viewed using a mirror) R Fig.2 RPrinted in Great Britain



# RB.211−72−AF260 Page 10 Oct.17/06 Jul.28/09 RR

Marks on the Rear Face and Visible Cracking R Fig.3 RPrinted in Great Britain



# RB.211−72−AF260 Page 11 Oct.17/06 Jul.28/09 RR

A Rejectable Damage Mark on the Recess Outside Diameter, Near the Chamfer with the Rear Face and Visible Cracking on the First Trent 800 Finding R Fig.4 RPrinted in Great Britain



# RB.211−72−AF260 Page 12 Oct.17/06 Jul.28/09 RR

Heavy Circumferential Frettage Mark and Visible Cracking on the Rear Face on the Trent 700 Finding. R Fig.5 RPrinted in Great Britain



# RB.211−72−AF260 Page 13 Oct.17/06 Jul.28/09 RNon-Modification Service Bulletin RB211-72-AF260. Critical data sheet. R Complete the following sheet for every shaft inspected. R 1. Retain a copy of this sheet at overhaul facility. R 2. Send a copy to Rolls-Royce via your local representative. R APPENDIX 1Printed in Great Britain



# RB.211−72−AF260 Appendix 1 - Page 1 of 2 Oct.17/06 Jul.28/09 ROverhaul Base ESN Engine Mark (e.g. Trent 500) IPC Drum PN IPC Drum SN Balance weights fitted:

Finding (location, N/A if none) Dimension (depth, length,...) Comments Finding (location, N/A if none) Dimension (depth, length,...) Comments

Finding (location, N/A if none) Dimension (depth, length,...) Comments

Finding (location, N/A if none) Dimension (depth, length,...) Comments

Finding (location, N/A if none) Dimension (depth, length,...) Comments

Finding (location, N/A if none) Dimension (depth, length,...) Comments

Finding (location, N/A if none) Dimension (depth, length,...) Comments Date of Inspection

PN AS44695−150 AS44695−175 AS44695−200 Amount CSN TSN CSN TSN

Location Balance weights: Frettage Outer Diaphragm rear face Crack Frettage Marks on Face Other
Crack Frettage Marks on Face Mark near chamfer Recess outside dia

Other
Crack Frettage Marks on Face Mark near chamfer Rear face

Other Recess rear face Crack Frettage Marks on Face Other Recess inside dia Crack Frettage Marks on Face Other Inner Diaphragm rear face Crack Frettage Marks on Face Other AS44695−225 AS44695−250 AS44695−275 AS44695−300

def0013697 Record position of each weight on this diagram View on Rear Face of IPC 8 disc looking towards front of engine Datum is the centre of the IPC8 blade loading slot Datum Feedback sheet NMSB 72−AF260

R

Appendix 1 RPrinted in Great Britain



# RB.211−72−AF260 Appendix 1 - Page 2 Oct.17/06 Jul.28/09 R