P.O. Box 31, DERBY DE24 8BJ, UK Telephone: 44 (0) 1332 242424 Fax: 44 (0) 1332 249936 

# Rol Is-Royce
m 

# TRANSMITTA The technical information contained in this document has been approved under the authority of - See Planning Information, Approval.
Signed Date Jul. 7/11
N. J. Wright

RB211 TRENT 500 SERIES PROPULSION SYSTEMS NON-MODIFICATION SERVICE BULLETIN 

# ALERT

This document transmits Revision 5 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 Revision 4 Ju1.28/09 Bulletin Revision 5 Remove Incorporate Supplement Revision Status



# ALERT Reason for change

Transmittal 

### - Page 1 of 3

CHECK THAT ALL PREVIOUS TRANSMllTALS HAVE BEEN INCORPORATED If any have not been received please advise Customer Data Services, Rolls-Royce plc, Derby, England O Rolls-Royce plc (date as above) Printed in Great BritainAll pages of the Service Bulletin Pages 1 to 12 of the Service Bulletin To remove Trent 700 and Trent 800 from 1. A. Effectivity, 1.H. References and 3. Accomplishment Instructions. To change the EASA AD in 1.D. Compliance. To amend the acceptance criteria for damage and frettage marks to incorporate Engine Manual references and to change Fig.1 to Trent 500 engine geometry. All pages of Appendix 1 Page 1 and 2 of Appendix 1 To remove Trent 700 and Trent 800 from 1. A. Effectivity, 1.H. References and 3. Accomplishment Instructions. To change the EASA AD in 1.D. Compliance. To amend the acceptance criteria for damage and frettage marks to incorporate Engine Manual references and to change Fig.1 to Trent 500 engine geometry.Printed in Great Britain



# RB.211−72−AF260 Transmittal - Page 2LIST OF EFFECTIVE PAGES The effective pages to this Service Bulletin following incorporation of Revision 5 are as follows: Page Revision Number Revision Date

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



# RB.211−72−AF260 Transmittal - Page 31. Planning Information A. Effectivity Airbus A340 R RB211 TRENT 500 Engines R
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. Revision 1 of this Non-Modification Service Bulletin (NMSB) was to revise an illustration (Fig.5). 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. 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. Revision 4 of this NMSB stated R that this NMSB did not have to be accomplished on IP compressor shafts with a life of zero cycles since new, introduced R a revised accept/reject criteria and brought the NMSB into line with current SB style. (2) Revision 5 of this NMSB is issued to remove the effect of Trent 700 and Trent 800 engines from this NMSB, as this inspection has been superceded by NMSB 72-AG085 for these engines. Also the acceptance criteria for damage and frettage marks has been revised. R R R R (3) 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 12 Oct 17/06 Jul. 7/11 R(4) Effect of Bulletin on: (a) Operation Not affected. (b) Maintenance Not affected. (c) Overhaul Not affected. (d) Repair Schemes Not affected. (e) Interchangeability Not affected. C. Description This NMSB instructs a visual inspection of the IP compressor shaft rear balance land in order to maintain serviceability. 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. D. Compliance
ALERT (1) This Non-Modification Service Bulletin is subject to a European Aviation Safety Agency R Airworthiness Directive EASA AD 2010-0266. It was previously subject to R R EASA AD 2007-0052. (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. (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. (4) This NMSB does not need to be accomplished on IP compressor shafts that have a life of zero cycles since new.Printed in Great Britain



# RB.211−72−AF260 Page 2 Oct 17/06 Jul. 7/11 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, Jul.20/09 R and on Jul. 5/11. F. Manpower (1) Time to remove the balance weights 0.25 hours (2) Time to clean and inspect 0.5 hours (3) Time to refit the balance weights 0.25 hours G. Tooling and Consumables Special tools are not required. H. References (1) Engine Manual (EM), 72-32-31, Clean the IP compressor remaining parts, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly, 72-32-31, Examine the IP compressor shaft remaining parts R R R (2) TSD 594J TASK 70-00-00-300-363 (3) 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, FRS6625Printed in Great Britain



# RB.211−72−AF260 Page 3 Oct 17/06 Jul. 7/11 R2. Material Information A. Parts required to accomplish this Service Bulletin All Engines 72-32-31
FIG ITEM NO. NEW PART NO. QTY PART TITLE MAT OLD PART NO. INSTR DISP
01-450 AS44702 4 Bolt, 0.190 in. dia x 0.335 in., VU1653 - AS44702 - 01-452 AS44691 4 Washer, VU1653 - AS44691 -Printed in Great Britain



# RB.211−72−AF260 Page 4 Oct 17/06 Jul. 7/11 R3. Accomplishment Instructions A. Remove and inspect the balance weights and clamps.

CAUTION : YOU MUST ALWAYS WEAR COTTON GLOVES WHEN YOU TOUCH THE SHAFT. (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. (2) Record the position and weight of each of the balance weights in Appendix 1 for reference during the assembly procedure. (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. (4) Clean the balance weights and clamps in accordance with EM, 72-32-31, Clean the IP compressor shaft remaining parts. R R (5) Inspect the balance weights for damage in accordance with EM, 72-32-31, Examine the IP compressor shaft remaining parts. R R If no frettage (galling) is found Accept, retain weights and discard bolts and washers If frettage (galling) is found on the balance weight Reject

If the balance weight is rejected 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 (6) Inspect the clamps in accordance with EM, 72-32-31, Examine the IP compressor shaft remaining parts. R R No damage and not bent Accept Damaged or Bent Reject.Printed in Great Britain



# RB.211−72−AF260 Page 5 Oct 17/06 Jul. 7/11 RB. 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. (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. (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. (a) Any surface of the balance land. Cracked Reject
(b) Outer diaphragm rear face - damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (c) Recess outside diameter - damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (d) Rear face - Damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (e) Recess rear face - Damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (f) Recess inside diameter - Damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (g) Inner diaphragm rear face - Damage or marks. Refer to EM, 72-32-31, Examine the IP compressor stage 1 to 8 shaft assembly. R R (3) Install the balance weight and the clamp in the same position as where they were removed from on the IP Compressor Drum. (a) If the balance weights and clamps are found to be serviceable, (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.
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. (ii) Torque tighten the bolts to 4Nm (35 lbfin.). Refer to Standard Practices Manual, TASK 70-51-00-400-000.Printed in Great Britain



# RB.211−72−AF260 Page 6 Oct 17/06 Jul. 7/11 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. (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. (5) Make sure that all temporary markings produced in Accomplishment Instructions 3.A.(1) are removed. C. Record the condition of the balance land on the attached inspection sheet provided in Appendix 1.
D. Accomplishment of this Non-Modification Service Bulletin is to be recorded in the engine logbook.Printed in Great Britain



# RB.211−72−AF260 Page 7 Oct 17/06 Jul. 7/11 R

## B



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

OUTER DIAPHRAGM INNER DIAPHRAGM REAR FACE 

## A

deh000712 1 BALANCE

LAND

DIA (fig 4)

REAR FACE RECESS REAR FACE (fig 2) RECESS INSIDE DIA 

## A

R

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



# RB.211−72−AF260 Page 8 Oct 17/06 Jul. 7/11 RFrettage (Galling) on the recess rear face (viewed using a mirror) Fig.2Printed in Great Britain



# RB.211−72−AF260 Page 9 Oct 17/06 Jul. 7/11 RMarks on the Rear Face and Visible Cracking Fig.3Printed in Great Britain



# RB.211−72−AF260 Page 10 Oct 17/06 Jul. 7/11 RA Rejectable Damage Mark on the Recess Outside Diameter, Near the Chamfer with the Rear Face and Visible Cracking on the First Trent 800 Finding Fig.4Printed in Great Britain



# RB.211−72−AF260 Page 11 Oct 17/06 Jul. 7/11 RHeavy 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 12 Oct 17/06 Jul. 7/11 RNon-Modification Service Bulletin RB211-72-AF260. Critical data sheet. Complete the following sheet for every shaft inspected. 1. Retain a copy of this sheet at overhaul facility. 2. Send a copy to Rolls-Royce via your local representative. APPENDIX 1Printed in Great Britain



# RB.211−72−AF260 Appendix 1 - Page 1 of 2 Oct 17/06 Jul. 7/11 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

Appendix 1Printed in Great Britain



# RB.211−72−AF260 Appendix 1 - Page 2 Oct 17/06 Jul. 7/11 R