This document transmits the Initial Issue of Service Bulletin SB-BR700-72-101683.

This Service Bulletin can be embodied "At Overhaul/Shop Visit".

Service Bulletin Initial Issue

Remove Incorporate Reason for change

Pages 1 to 9 of the

Service Bulletin.

Initial Issue.

Printed in Great Britain

Sep.20/10

BR700 SERIES PROPULSION SYSTEM SERVICE BULLETIN

SB−BR700−72−101683

Transmittal - Page 1 of 1

1. Planning Information

A. Effectivity

BR700-715A1-30, BR700-715B1-30 and BR700-715C1-30 Engines.

For all engines which do not have the Service Bulletin SB-BR700-72-101155

standard incorporated.

Non-Modular.

B. Concurrent Requirements

None.

C. Reason

(1) Problem

Low Pressure (LP) compressor booster rotors of pre Service Bulletin

SB-BR700-72-101155 standard do not fulfill all engineering requirements.

The machining of the 24 front flange scallops and the peening process of

this area at the LP compressor booster rotors have not been done as

originally designed. This could have an influence on the predicted safe

cyclic life of these LP compressor booster rotors.

(2) Evidence

This was found during engineering reviews and supported by part

inspections after rig testing.

(3) Substantiation

The changes introduced by this Service Bulletin were the subject of

satisfactory engineering analysis and tests. This Service Bulletin

complies with the applicable engine certification basis.

(4) Objective

Introduction of this Service Bulletin is designed to maintain

reliability.

ENGINE - LOW PRESSURE (LP) COMPRESSOR BOOSTER ROTOR - INTRODUCTION OF A LP

COMPRESSOR BOOSTER ROTOR WITH REPROFILED SCALLOPS BY REWORK

Printed in Great Britain

SB−BR700−72−101683

Page 1 of 9

Sep.20/10

Sep.20/10 Initial Issue
(5) Effect of Bulletin on:

(a) Operation

Not affected.

(b) Maintenance

Not affected.

(c) Overhaul

Affected (Refer to paragraph 1.O. Other Publications Affected).

(d) Repair Schemes

Affected (The Repair Schemes BRG1500, BRG1504, BRG1505 and BRG1509

are affected).

(e) Interchangeability

Not affected.

(f) Fits and Clearances

Not affected.

D. Description

This Service Bulletin instructs a rework to LP compressor booster rotors of

pre Service Bulletin SB-BR700-72-101155 standard. The used LP compressor

booster rotors will be inspected and only LP compressor booster rotors without

visible cracks will be reworked.

The rework contains:

- Machining of the 24 front flange scallops and the radii of the 24 front

flange scallops.

- A crack inspection of the reworked area.

- Shot peening of the reworked area.

- Identification of the reworked part with a new part number.

Printed in Great Britain

SB−BR700−72−101683

Page 2 of 9

Sep.20/10

Sep.20/10 Initial Issue
The maximum approved lives of the reworked LP compressor booster rotors and

any later alterations to them will be determined in the Time Limits Manual,

Chapter 05-10-01.

NOTE: The LP compressor booster rotor can be reworked from the old standards

(P/N BRH19871 or P/N BRH19215) to the new standards (P/N FW82697 or P/N

FW82700) in accordance with the Rework Instruction 72-101683 Issue 01

by companies only who have the letters of approval from Rolls-Royce

Deutschland to do this rework. The Rework Instruction 72-101683 Issue

01 is not attached to this Service Bulletin.

This Service Bulletin is divided into two PARTs as follows:

PART 1 - Applicable for engines which have the Service Bulletin

SB-BR700-72-100922 standard incorporated but do not have the Service

Bulletin SB-BR700-72-101155 standard incorporated (Rework of the LP

compressor booster rotor from the old standard (P/N BRH19871) to the

new standard (P/N FW82697).

PART 2 - Applicable for engines which do not have the Service Bulletin

SB-BR700-72-100922 standard incorporated (Rework of the LP

compressor booster rotor from the old standard (P/N BRH19215) to the

new standard (P/N FW82700).

E. Compliance

RECOMMENDED

It is recommended that this Service Bulletin be accomplished on engines when

the engine or module is disassembled for refurbishment or overhaul.

F. Approval

The technical content of this document is approved under the authority of EASA

Design Organisation Approval No. EASA.21J.065.

G. Manpower

Estimated Man-hours:

(1) In Service

Not applicable.

(2) At Overhaul/Shop Visit

(a) Applicable (Hours not affected)

(b) 8 hours for rework.

Printed in Great Britain

SB−BR700−72−101683

Page 3 of 9

Sep.20/10

Sep.20/10 Initial Issue
H. Material Price and Availability

A modification kit is not required; parts are supplied as single line items.

For actual prices and availability of spares, contact:

Rolls-Royce Deutschland Ltd & Co KG

Spares Business

Eschenweg 11, Dahlewitz

15827 Blankenfelde-Mahlow

Germany

Fax: +49 (0) 33 7086 3028

I. Tooling Price and Availability

New tools are not required.

J. Industry Support Information

The incorporation of this Service Bulletin is not free of charge.

NOTE: For further information contact your local Rolls-Royce Representative.

K. Weight and Balance

(1) Weight Change

None.

(2) Moment Arm

No effect.

(3) Datum

ES2540 (PPS100).

L. Electrical Load Data

The aircraft electrical load is not affected by this Service Bulletin.

M. Software Accomplishment Summary

Not applicable.

Printed in Great Britain

SB−BR700−72−101683

Page 4 of 9

Sep.20/10

Sep.20/10 Initial Issue
N. References

(1) Modification Bulletin 72-101683 Issue 01 date Aug.19/10.

(2) Engine Manual - E-715-3BR, Chapters 72-00-32 and 72-31-00.

(3) Rework Instruction 72-101683 Issue 01 dated Mar. 1/10.

(4) Service Bulletin SB-BR700-72-100922

ENGINE - LP COMPRESSOR BOOSTER ROTOR - INTRODUCTION OF NEW OIL DRAIN HOLE

POSITIONS AND CHANGED MANUFACTURING TOLERANCES

(5) Service Bulletin SB-BR700-72-101155

ENGINE - LP COMPRESSOR BOOSTER ROTOR - INTRODUCTION OF A NEW BOOSTER

BLISK ROTOR WITH DECREASED TIP CLEARANCE

O. Other Publications Affected

(1) Illustrated Parts Catalog - S-715-3BR, Chapter 72-38-18.

(2) Engine Manual - E-715-3BR, Chapter 72-38-18.

(3) Time Limits Manual - T-715-3BR, Chapter 05-10-01.

P. Interchangeability of Parts

Not affected.

Printed in Great Britain

SB−BR700−72−101683

Page 5 of 9

Sep.20/10

Sep.20/10 Initial Issue
2. Material Information

A. Parts required to accomplish this Service Bulletin (In addition to Parts in

2.B., 2.C. and 2.E.)

None.

B. Parts to be Reworked

IPC

Fig/Item

No.

New

Part

No.

Unit Price

(US

Dollars)

Qty

Per

Eng.

Key Word Old

Part

No.

Instructions/

Dispositions

PART 1

72-38-18

01-200 FW82697 - 1 Low Pressure (LP)

compressor booster

rotor

BRH19871 (1)(2)(3)

PART 2

72-38-18

01-200 FW82700 - 1 Low Pressure (LP)

compressor booster

rotor

BRH19215 (1)(2)(3)

C. New Production Parts

None.

D. Redundant Parts

None.

E. Expendable Parts

Refer to the related Manual tasks given in the Accomplishment Instruction of

this Service Bulletin.

Printed in Great Britain

SB−BR700−72−101683

Page 6 of 9

Sep.20/10

Sep.20/10 Initial Issue
F. Instruction/Disposition Codes

(1) The old and new parts are fully interchangeable.

(2) The part can be reworked from the old standard to the new standard in

accordance with the Rework Instruction 72-101683 Issue 01 by companies

only who have the letters of approval from Rolls-Royce Deutschland to do

this rework. The Rework Instruction 72-101683 Issue 01 is not attached to

this Service Bulletin.

(3) The reworked LP compressor booster rotors can be used as alternatives to

each other and to the existing LP compressor booster rotors, P/N BRH19871

(Service Bulletin SB-BR700-72-100922 standard) and P/N BRH20241 (Service

Bulletin SB-BR700-72-101155 standard).

Printed in Great Britain

SB−BR700−72−101683

Page 7 of 9

Sep.20/10

Sep.20/10 Initial Issue
3. Accomplishment Instruction

A. General

(1) Obey all the WARNINGS and CAUTIONS in the procedures that are referred

to.

(2) Consumable Materials

(a) Refer to the related Manual tasks given in this instruction.

(3) Tools and Equipment

(a) Refer to the related Manual tasks given in this instruction.

B. Remove the Low Pressure (LP) compressor (fan) disc/Low Pressure (LP)

compressor booster rotor assembly from the engine (Refer to the Engine Manual,

TASK 72-00-32-000-801).

C. Disassemble the LP compressor (fan) disc/LP compressor booster rotor assembly

(Refer to the Engine Manual, TASK 72-31-00-000-802)

(1) Remove the old LP compressor booster rotor (72-38-18, 01-200), P/N

BRH19871 or P/N BRH19215.

D. Rework the removed LP compressor booster rotor (72-38-18, 01-200) from the old

standards (P/N BRH19871 or P/N BRH19215) to the new standards (P/N FW82697 or

P/N FW82700)

(1) A source demonstration is necessary for this rework. Refer to your local

Rolls-Royce Representative to find the companies who have the letters of

approval from Rolls-Royce Deutschland to do this rework in accordance

with the Rework Instruction 72-101683 Issue 01.

E. Assemble the LP compressor (fan) disc/LP compressor booster rotor assembly

(Refer to the Engine Manual, TASK 72-31-00-400-801)

(1) Install the reworked LP compressor booster rotor (72-38-18, 01-200), P/N

FW82697 or P/N FW82700.

F. Install the LP compressor (fan) disc/LP compressor booster rotor assembly on

the engine (Refer to the Engine Manual, TASK 72-00-32-400-801).

G. Make sure that the work area is clean and clear of tools, equipment and other

unwanted materials.

Printed in Great Britain

SB−BR700−72−101683

Page 8 of 9

Sep.20/10

Sep.20/10 Initial Issue
H. A record of accomplishment is required. Rolls-Royce Deutschland suggests to

put an entry into the engine log book

(1) Record the incorporation of Service Bulletin SB-BR700-72-101683 (PART A

or B) in the Engine Service Record.

(2) Record the incorporation of Service Bulletin SB-BR700-72-101683 (PART A

or B) in the Service Bulletins list of the Non-Modular Log Card.

(3) Record the removal of the old LP compressor booster rotor (72-38-18,

01-200), P/N BRH19871 or P/N BRH19215 in the Serialized Parts Life Record

list of the Non-Modular Log Card and on the Life Limited Part (LLP)

record sheet

(a) Complete the LLP record sheet of the old LP compressor booster rotor

to show the accumulated life of the old LP compressor booster rotor

at rework.

(4) Record the installation of the reworked LP compressor booster rotor

(72-38-18, 01-200), P/N FW82697 or P/N FW82700 in the Serialized Parts

Life Record list of the Non-Modular Log Card and on the LLP record sheet

(a) Raise a new LLP record sheet for the reworked LP compressor booster

rotor.

(b) Make sure the serial number and accumulated life at rework of the

old LP compressor booster rotor (72-38-18, 01-200), P/N BRH19871 or

P/N BRH19215 from the LLP record sheet is recorded on the new LLP

record sheet for the reworked LP compressor booster rotor.

(c) Make sure the accumulated life and serial number of the reworked LP

compressor booster rotor is recorded in the Serialized Parts Life

Record list of the Non-Modular Log Card.

Printed in Great Britain

SB−BR700−72−101683

Page 9 of 9

Sep.20/10

Sep.20/10 Initial Issue