This document transmits the Initial Issue of Service Bulletin SB-BR700-73-101847.

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

Service Bulletin Initial Issue

Remove Incorporate Reason for change

Pages 1 to 21 of the

Service Bulletin.

Initial Issue.

Printed in Great Britain

May 17/13

BR700 SERIES PROPULSION SYSTEM SERVICE BULLETIN

SB−BR700−73−101847

Transmittal - Page 1 of 1

1. Planning Information

A. Effectivity

BR700-725A1-12 Engines.

Prior to Engine Serial Number 25254.

Non-Modular.

B. Concurrent Requirements

None.

C. Reason

(1) Problem

There is the requirement to introduce a more reliable spill return to

fuel pump tube, which is installed between the Fuel Metering Unit (FMU)

and the main fuel pump.

It is also necessary to introduce a new assembly procedure for the

installation of the spill return to fuel pump tube, the FMU and the main

fuel pump.

(2) Evidence

This requirement has been identified during engine test.

(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 FUEL AND CONTROL - EXTERNAL FUEL DISTRIBUTION TUBES AND FITTINGS -

INTRODUCTION OF A NEW SPILL RETURN TO FUEL PUMP TUBE MADE FROM A DIFFERENT MATERIAL

AND A NEW ASSEMBLY PROCEDURE

Printed in Great Britain

SB−BR700−73−101847

Page 1 of 21

May 17/13

May 17/13 Initial Issue
(5) Effect of Bulletin on:

(a) Operation

Not affected.

(b) Maintenance

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

(c) Overhaul

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

(d) Repair Schemes

Not affected.

(e) Interchangeability

Not affected.

(f) Fits and Clearances

Not affected.

D. Description

This Service Bulletin introduces a new spill return to fuel pump tube, which

is installed between the FMU and the main fuel pump and is made from a

different material.

This Service Bulletin also introduces a new assembly procedure, which needs to

be applied for the installation of the new standard of spill return to fuel

pump tube. This new assembly procedure also needs to be applied for the

installation of the FMU and the main fuel pump.

NOTE: The new assembly procedure can also be applied for the installation of

the old standard of spill return to fuel pump tube. The intention is to

replace the existing assembly procedure for the installation of the

spill return to fuel pump tube, the FMU and the main fuel pump in the

manuals with the new assembly procedure.

NOTE: The Accomplishment Instruction of this Service Bulletin is divided into

two INSTRUCTIONs as follows:

INSTRUCTION I - Applicable for engines "In Service".

INSTRUCTION II - Applicable for engines "At Overhaul/Shop Visit".

Printed in Great Britain

SB−BR700−73−101847

Page 2 of 21

May 17/13

May 17/13 Initial Issue
E. Compliance

RECOMMENDED

It is recommended that this Service Bulletin be accomplished on engines at the

next aircraft scheduled maintenance opportunity.

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

3 hours.

(2) At Overhaul/Shop Visit

Applicable (Hours not affected).

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 free of charge.

NOTE: For further information contact your Rolls-Royce Regional Customer

Manager (RCM).

Printed in Great Britain

SB−BR700−73−101847

Page 3 of 21

May 17/13

May 17/13 Initial Issue
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.

N. References

(1) Modification Bulletin 73-101847 Issue 01 dated May 17/13.

(2) Aircraft Maintenance Manual, Chapters 70-02-04, 70-10-01, 70-10-02,

70-50-02, 71-00-00, 71-10-00, 73-11-01 and 73-21-03.

(3) Engine Manual - E-725-7BR, Chapters 72-00-00, 73-11-01 and 73-21-03.

(4) Standard Practices Manual - SP-700-BR, Chapters 70-12-02, 70-12-04 and

70-51-00.

(5) Overhaul Materials Manual, Section 2.

O. Other Publications Affected

(1) Illustrated Parts Catalog - S-725-7BR, Chapter 73-12-05.

(2) Aircraft Maintenance Manual, Chapters 73-11-01 and 73-21-03.

(3) Engine Manual - E-725-7BR, Chapters 72-71-00, 73-11-01 and 73-21-03.

P. Interchangeability of Parts

Affected (Refer to paragraph 2.F. Instruction/Disposition Codes).

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SB−BR700−73−101847

Page 4 of 21

May 17/13

May 17/13 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.)

IPC

Fig/Item

No.

New

Part

No.

Unit Price

(US

Dollars)

Qty

Per

Eng.

Key Word Old

Part

No.

Instructions/

Dispositions

73-12-05

07-100 KH33300 P.O.A. 1 Spill return to

fuel pump tube

FW64852 (1)

B. Parts to be Reworked

None.

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.

F. Instruction/Disposition Codes

(1) The old and new parts are interchangeable, but once the new part has been

installed it is not permitted to re-install the old part.

Printed in Great Britain

SB−BR700−73−101847

Page 5 of 21

May 17/13

May 17/13 Initial Issue
3. Accomplishment Instruction

INSTRUCTION I - APPLICABLE FOR ENGINES "IN SERVICE"

A. General

NOTE: In order to reduce the potential for multiple-engine in-flight

shutdown, power loss, or other anomaly due to maintenance error,

Rolls-Royce Deutschland recommends that Operators avoid performing

maintenance on multiple engines installed on the same aircraft at the

same time. If it is not possible to avoid maintenance on more than one

engine of an aircraft at the same time, Rolls-Royce Deutschland

recommends that additional controls are applied in order to ensure that

maintenance tasks have been completed as defined.

WARNING: YOU MUST BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE

ENGINE IS STOPPED. THE ENGINE PARTS CAN STAY HOT FOR ALMOST ONE

HOUR.

WARNING: DO NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN

CAUSE AN INJURY. IF YOU GET AN INJURY, PUT IT IN COLD WATER FOR TEN

MINUTES AND GET MEDICAL AID.

WARNING: DO NOT LET FUEL STAY ON YOUR SKIN. REMOVE THE FUEL FROM YOUR SKIN

WITH SOAP AND WATER. THE FUEL IS POISONOUS AND CAN BE ABSORBED INTO

YOUR BODY.

WARNING: YOU MUST USE EYE PROTECTION WHEN YOU CUT THE LOCKWIRE. IF YOU DO NOT

OBEY THIS INSTRUCTION, PIECES OF LOCKWIRE CAN HIT YOUR EYES AND

CAUSE AN INJURY.

WARNING: DO NOT LET USED LOCKWIRE STAY ON OR NEAR THE ENGINE. USED LOCKWIRE

MUST BE DISCARDED IN THE CORRECT CONTAINER. IF YOU DO NOT OBEY THIS

INSTRUCTION, INJURY TO PERSONS AND/OR DAMAGE TO THE ENGINE CAN

OCCUR.

CAUTION: DO NOT LET FUEL FALL ON THE ENGINE. UNWANTED FUEL MUST BE REMOVED

IMMEDIATELY WITH A CLEAN LINT-FREE CLOTH. THE FUEL CAN CAUSE DAMAGE

TO SURFACE PROTECTION AND TO SOME COMPONENTS.

CAUTION: DO NOT PUT FUEL THAT HAS BEEN USED BACK INTO THE FUEL SYSTEM.

CONTAMINATION OF THE FUEL CAN CAUSE DAMAGE TO SOME COMPONENTS.

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

to.

Printed in Great Britain

SB−BR700−73−101847

Page 6 of 21

May 17/13

May 17/13 Initial Issue
(2) Consumable Materials

(a) Refer to the table that follows:

OMAT NO. DESIGNATION

238 Lockwire

For the details of the consumable material given in the table above

refer to the Aircraft Maintenance Manual, Chapter 70-02-04, PB201.

(b) For further consumable materials refer also to the related Manual

tasks given in this instruction.

(3) Tools and Equipment

(a) Refer to the table that follows:

REFERENCE DESIGNATION

No Specific Container (Fuel Resistant)

(b) For further tools and equipment refer also to the related Manual

tasks given in this instruction.

(4) Refer to the Aircraft Maintenance Manual, Chapter 70-10-01, PB201 for the

procedure to remove and install V-band coupling clamps.

(5) Refer to the Aircraft Maintenance Manual, Chapter 70-10-02, PB201 for the

procedure to safety threaded parts.

(6) Refer to the Aircraft Maintenance Manual, Chapter 70-50-02, PB201 for all

torque procedures.

B. Get access to the spill return to fuel pump tube that is installed between the

Fuel Metering Unit (FMU) and the main fuel pump

(1) Open the applicable cowl doors (Refer to the Aircraft Maintenance Manual,

Chapter 71-10-00, PB201).

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May 17/13 Initial Issue
C. Remove the old spill return to fuel pump tube (73-12-05, 07-100), P/N FW64852

that is installed between the FMU and the main fuel pump (Refer to Figure 1)

CAUTION: USE TWO WRENCHES WHEN YOU LOOSEN THE TWO UNION NUTS OF THE SPILL

RETURN TO FUEL PUMP TUBE (73-12-05, 07-100). USE ONE WRENCH TO HOLD

THE UNION OF THE FMU AND THE OTHER WRENCH TO LOOSEN THE RELEVANT

UNION NUT OF THE SPILL RETURN TO FUEL PUMP TUBE (73-12-05, 07-100).

USE ONE WRENCH TO HOLD THE UNION OF THE MAIN FUEL PUMP AND THE OTHER

WRENCH TO LOOSEN THE RELEVANT UNION NUT OF THE SPILL RETURN TO FUEL

PUMP TUBE (73-12-05, 07-100). IF YOU DO NOT DO THIS YOU CAN CAUSE

DAMAGE TO THE COMPONENTS.

(1) Put a clean fuel resistant container in position below the FMU and the

main fuel pump to catch the drained fuel.

(2) Cut and remove the lockwire from the union nut that attaches the spill

return to fuel pump tube (73-12-05, 07-100) to the FMU.

(3) Cut and remove the lockwire from the union nut that attaches the spill

return to fuel pump tube (73-12-05, 07-100) to the main fuel pump.

(4) Remove the union nut of the spill return to fuel pump tube (73-12-05,

07-100) from the FMU.

(5) Remove the union nut of the spill return to fuel pump tube (73-12-05,

07-100) from the main fuel pump.

(6) Remove the old spill return to fuel pump tube (73-12-05, 07-100), P/N

FW64852 from the engine.

D. Send the removed spill return to fuel pump tube to the address that follows:

Rolls-Royce North America, Inc.

111C Coleman Blvd.

Pooler, GA

31408

USA

(1) Clearly identify the removed spill return to fuel pump tube with the

engine serial number of the engine where it was removed.

(2) Confirm the shipping of the removed spill return to fuel pump tube on the

Accomplishment Form on page 21.

Printed in Great Britain

SB−BR700−73−101847

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May 17/13

May 17/13 Initial Issue
E. Install the new spill return to fuel pump tube (73-12-05, 07-100), P/N KH33300

between the FMU and the main fuel pump (Refer to the Aircraft Maintenance

Manual, Chapter 73-11-01, PB401 and Chapter 73-21-03, PB401 and to Figure 1 of

this Service Bulletin)

CAUTION: USE TWO WRENCHES WHEN YOU TIGHTEN THE TWO UNION NUTS OF THE SPILL

RETURN TO FUEL PUMP TUBE (73-12-05, 07-100). USE ONE WRENCH TO HOLD

THE UNION OF THE FMU AND THE OTHER WRENCH TO TIGHTEN THE RELEVANT

UNION NUT OF THE SPILL RETURN TO FUEL PUMP TUBE (73-12-05, 07-100).

USE ONE WRENCH TO HOLD THE UNION OF THE MAIN FUEL PUMP AND THE OTHER

WRENCH TO TIGHTEN THE RELEVANT UNION NUT OF THE SPILL RETURN TO FUEL

PUMP TUBE (73-12-05, 07-100). IF YOU DO NOT DO THIS YOU CAN CAUSE

DAMAGE TO THE COMPONENTS.

(1) Loosen the bolts at the clip positions of all fuel tubes which are

connected to the FMU.

(2) Loosen the bolts at the clip positions of all fuel tubes which are

connected to the main fuel pump.

(3) Disconnect all remaining fuel tubes from the FMU and replace the seal

rings of the disconnected fuel tubes with new seal rings (Refer to the

Aircraft Maintenance Manual, Chapter 73-21-03, PB401).

(4) Disconnect all remaining fuel tubes from the main fuel pump and replace

the seal rings of the disconnected fuel tubes with new seal rings (Refer

to the Aircraft Maintenance Manual, Chapter 73-11-01, PB401).

(5) Loosen the four bolts (73-21-03, 01-201) that attach the FMU to the FMU

mounting plate until the FMU can rotate freely within its limits on the

FMU mounting plate.

(6) Loosen the nut of the V-band coupling clamp (73-11-01, 01-150) that

attaches the main fuel pump to the accessory gearbox drive pad until the

main fuel pump can rotate freely within its limits on the accessory

gearbox drive pad.

(7) Put and hold the new spill return to fuel pump tube (73-12-05, 07-100),

P/N KH33300 in position between the FMU and the main fuel pump.

(8) Rotate the FMU within its limits on the FMU mounting plate and rotate the

main fuel pump within its limits on the accessory gearbox drive pad until

the spill return to fuel pump tube (73-12-05, 07-100) is aligned in its

correct position without any pre-stressing.

(9) Loosely install the union nut of the spill return to fuel pump tube

(73-12-05, 07-100) on the FMU.

(10) Loosely install the union nut of the spill return to fuel pump tube

(73-12-05, 07-100) on the main fuel pump.

Printed in Great Britain

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May 17/13

May 17/13 Initial Issue
(11) Torque the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the FMU to 47 Nm (420 lbf in.).

(12) Torque the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the main fuel pump to 47 Nm (420 lbf in.).

(13) Torque the four bolts (73-21-03, 01-201) that attach the FMU to the FMU

mounting plate to 32,2 Nm (285 lbf in.).

(14) Torque the nut of the V-band coupling clamp (73-11-01, 01-150) that

attaches the main fuel pump to the accessory gearbox drive pad to between

9 and 11 Nm (80 and 98 lbf in.).

(15) Connect all remaining fuel tubes to the FMU and torque and safety their

bolts and union nuts in accordance with the Aircraft Maintenance Manual

(Refer to the Aircraft Maintenance Manual, Chapter 73-21-03, PB401)

(a) Make sure that all applicable seal rings of the disconnected fuel

tubes have been replaced with new seal rings.

(16) Connect all remaining fuel tubes to the main fuel pump and torque and

safety their bolts and union nuts in accordance with the Aircraft

Maintenance Manual (Refer to the Aircraft Maintenance Manual, Chapter

73-11-01, PB401)

(a) Make sure that all applicable seal rings of the disconnected fuel

tubes have been replaced with new seal rings.

(17) Torque the bolts at the clip positions of all fuel tubes which are

connected to the FMU to 4,5 Nm (40 lbf in.).

(18) Torque the bolts at the clip positions of all fuel tubes which are

connected to the main fuel pump to 4,5 Nm (40 lbf in.).

(19) Safety the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the FMU with lockwire (OMat 238).

(20) Safety the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the main fuel pump with lockwire (OMat 238).

(21) Remove the fuel resistant container together with the drained fuel from

the engine.

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

unwanted materials.

G. Close the access to the spill return to fuel pump tube

(1) Close the cowl doors (Refer to the Aircraft Maintenance Manual, Chapter

71-10-00, PB201).

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May 17/13 Initial Issue
H. Do engine (Test 1) - wet motor operation leak check (Refer to the Aircraft

Maintenance Manual, Chapter 71-00-00, PB501).

I. Do engine run leak check (Test 2B) - high-pressure fuel system (Refer to the

Aircraft Maintenance Manual, Chapter 71-00-00, PB501).

J. Complete the Accomplishment Form on page 21 and send it to Rolls-Royce

Deutschland, Service Operations.

K. 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-BR700-73-101847 in the

Engine Service Record.

(2) Record the incorporation of Service Bulletin SB-BR700-73-101847 in the

Service Bulletins list of the Non-Modular Log Card.

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May 17/13

May 17/13 Initial Issue
INSTRUCTION II - APPLICABLE FOR ENGINES "AT OVERHAUL/SHOP VISIT"

L. General

WARNING: DO NOT LET FUEL STAY ON YOUR SKIN. REMOVE THE FUEL FROM YOUR SKIN

WITH SOAP AND WATER. THE FUEL IS POISONOUS AND CAN BE ABSORBED INTO

YOUR BODY.

WARNING: YOU MUST USE EYE PROTECTION WHEN YOU CUT THE LOCKWIRE. IF YOU DO NOT

OBEY THIS INSTRUCTION, PIECES OF LOCKWIRE CAN HIT YOUR EYES AND

CAUSE AN INJURY.

WARNING: DO NOT LET USED LOCKWIRE STAY ON OR NEAR THE ENGINE. USED LOCKWIRE

MUST BE DISCARDED IN THE CORRECT CONTAINER. IF YOU DO NOT OBEY THIS

INSTRUCTION, INJURY TO PERSONS AND/OR DAMAGE TO THE ENGINE CAN

OCCUR.

CAUTION: DO NOT LET FUEL FALL ON THE ENGINE. UNWANTED FUEL MUST BE REMOVED

IMMEDIATELY WITH A CLEAN LINT-FREE CLOTH. THE FUEL CAN CAUSE DAMAGE

TO SURFACE PROTECTION AND TO SOME COMPONENTS.

CAUTION: DO NOT PUT FUEL THAT HAS BEEN USED BACK INTO THE FUEL SYSTEM.

CONTAMINATION OF THE FUEL CAN CAUSE DAMAGE TO SOME COMPONENTS.

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

to.

(2) Consumable Materials

(a) Refer to the table that follows:

OMAT NO. DESIGNATION

238 Lockwire

For the details of the consumable material given in the table above

refer to the Overhaul Materials Manual.

(b) For further consumable materials refer also to the related Manual

tasks given in this instruction.

(3) Tools and Equipment

(a) Refer to the table that follows:

REFERENCE DESIGNATION

No Specific Container (Fuel Resistant)

(b) For further tools and equipment refer also to the related Manual

tasks given in this instruction.

Printed in Great Britain

SB−BR700−73−101847

Page 12 of 21

May 17/13

May 17/13 Initial Issue
(4) Refer to the Standard Practices Manual, Chapter 70-12-02, PB1/TASK

70-12-02-000-801 for the procedure to remove V-band coupling clamps.

(5) Refer to the Standard Practices Manual, Chapter 70-12-02, PB1/TASK

70-12-02-400-801 for the procedure to install V-band coupling clamps.

(6) Refer to the Standard Practices Manual, Chapter 70-12-04, PB1/TASK

70-12-04-400-801 for the procedure to safety threaded parts.

(7) Refer to the Standard Practices Manual, Chapter 70-51-00, PB1/TASK

70-51-00-400-801 for all torque procedures.

M. Get access to the spill return to fuel pump tube that is installed between the

Fuel Metering Unit (FMU) and the main fuel pump.

N. Remove the old spill return to fuel pump tube (73-12-05, 07-100), P/N FW64852

that is installed between the FMU and the main fuel pump (Refer to Figure 1)

CAUTION: USE TWO WRENCHES WHEN YOU LOOSEN THE TWO UNION NUTS OF THE SPILL

RETURN TO FUEL PUMP TUBE (73-12-05, 07-100). USE ONE WRENCH TO HOLD

THE UNION OF THE FMU AND THE OTHER WRENCH TO LOOSEN THE RELEVANT

UNION NUT OF THE SPILL RETURN TO FUEL PUMP TUBE (73-12-05, 07-100).

USE ONE WRENCH TO HOLD THE UNION OF THE MAIN FUEL PUMP AND THE OTHER

WRENCH TO LOOSEN THE RELEVANT UNION NUT OF THE SPILL RETURN TO FUEL

PUMP TUBE (73-12-05, 07-100). IF YOU DO NOT DO THIS YOU CAN CAUSE

DAMAGE TO THE COMPONENTS.

(1) Put a clean fuel resistant container in position below the FMU and the

main fuel pump to catch the drained fuel.

(2) Cut and remove the lockwire from the union nut that attaches the spill

return to fuel pump tube (73-12-05, 07-100) to the FMU.

(3) Cut and remove the lockwire from the union nut that attaches the spill

return to fuel pump tube (73-12-05, 07-100) to the main fuel pump.

(4) Remove the union nut of the spill return to fuel pump tube (73-12-05,

07-100) from the FMU.

(5) Remove the union nut of the spill return to fuel pump tube (73-12-05,

07-100) from the main fuel pump.

(6) Remove the old spill return to fuel pump tube (73-12-05, 07-100), P/N

FW64852 from the engine.

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May 17/13 Initial Issue
O. Send the removed spill return to fuel pump tube to the address that follows:

Rolls-Royce North America, Inc.

111C Coleman Blvd.

Pooler, GA

31408

USA

(1) Clearly identify the removed spill return to fuel pump tube with the

engine serial number of the engine where it was removed.

(2) Confirm the shipping of the removed spill return to fuel pump tube on the

Accomplishment Form on page 21.

P. Install the new spill return to fuel pump tube (73-12-05, 07-100), P/N KH33300

between the FMU and the main fuel pump (Refer to the Engine Manual, Chapter

73-11-01, PB301/TASK 73-11-01-000-801 and PB401/TASK 73-11-01-400-801 and

Chapter 73-21-03, PB301/TASK 73-21-03-000-801 and PB401/TASK 73-21-03-400-801

and to Figure 1 of this Service Bulletin)

CAUTION: USE TWO WRENCHES WHEN YOU TIGHTEN THE TWO UNION NUTS OF THE SPILL

RETURN TO FUEL PUMP TUBE (73-12-05, 07-100). USE ONE WRENCH TO HOLD

THE UNION OF THE FMU AND THE OTHER WRENCH TO TIGHTEN THE RELEVANT

UNION NUT OF THE SPILL RETURN TO FUEL PUMP TUBE (73-12-05, 07-100).

USE ONE WRENCH TO HOLD THE UNION OF THE MAIN FUEL PUMP AND THE OTHER

WRENCH TO TIGHTEN THE RELEVANT UNION NUT OF THE SPILL RETURN TO FUEL

PUMP TUBE (73-12-05, 07-100). IF YOU DO NOT DO THIS YOU CAN CAUSE

DAMAGE TO THE COMPONENTS.

(1) Loosen the bolts at the clip positions of all fuel tubes which are

connected to the FMU.

(2) Loosen the bolts at the clip positions of all fuel tubes which are

connected to the main fuel pump.

(3) Disconnect all remaining fuel tubes from the FMU and replace the seal

rings of the disconnected fuel tubes with new seal rings (Refer to the

Engine Manual, Chapter 73-21-03, PB301/TASK 73-21-03-000-801).

(4) Disconnect all remaining fuel tubes from the main fuel pump and replace

the seal rings of the disconnected fuel tubes with new seal rings (Refer

to the Engine Manual, Chapter 73-11-01, PB301/TASK 73-11-01-000-801).

(5) Loosen the four bolts (73-21-03, 01-201) that attach the FMU to the FMU

mounting plate until the FMU can rotate freely within its limits on the

FMU mounting plate.

(6) Loosen the nut of the V-band coupling clamp (73-11-01, 01-150) that

attaches the main fuel pump to the accessory gearbox drive pad until the

main fuel pump can rotate freely within its limits on the accessory

gearbox drive pad.

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May 17/13

May 17/13 Initial Issue
(7) Put and hold the new spill return to fuel pump tube (73-12-05, 07-100),

P/N KH33300 in position between the FMU and the main fuel pump.

(8) Rotate the FMU within its limits on the FMU mounting plate and rotate the

main fuel pump within its limits on the accessory gearbox drive pad until

the spill return to fuel pump tube (73-12-05, 07-100) is aligned in its

correct position without any pre-stressing.

(9) Loosely install the union nut of the spill return to fuel pump tube

(73-12-05, 07-100) on the FMU.

(10) Loosely install the union nut of the spill return to fuel pump tube

(73-12-05, 07-100) on the main fuel pump.

(11) Torque the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the FMU to 47 Nm (420 lbf in.).

(12) Torque the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the main fuel pump to 47 Nm (420 lbf in.).

(13) Torque the four bolts (73-21-03, 01-201) that attach the FMU to the FMU

mounting plate to 32,2 Nm (285 lbf in.).

(14) Torque the nut of the V-band coupling clamp (73-11-01, 01-150) that

attaches the main fuel pump to the accessory gearbox drive pad to between

9 and 11 Nm (80 and 98 lbf in.).

(15) Connect all remaining fuel tubes to the FMU and torque and safety their

bolts and union nuts in accordance with the Engine Manual (Refer to the

Engine Manual, Chapter 73-21-03, PB401/TASK 73-21-03-400-801)

(a) Make sure that all applicable seal rings of the disconnected fuel

tubes have been replaced with new seal rings.

(16) Connect all remaining fuel tubes to the main fuel pump and torque and

safety their bolts and union nuts in accordance with the Engine Manual

(Refer to the Engine Manual, Chapter 73-11-01, PB401/TASK

73-11-01-400-801)

(a) Make sure that all applicable seal rings of the disconnected fuel

tubes have been replaced with new seal rings.

(17) Torque the bolts at the clip positions of all fuel tubes which are

connected to the FMU to 4,5 Nm (40 lbf in.).

(18) Torque the bolts at the clip positions of all fuel tubes which are

connected to the main fuel pump to 4,5 Nm (40 lbf in.).

(19) Safety the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the FMU with lockwire (OMat 238).

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May 17/13 Initial Issue
(20) Safety the union nut that attaches the spill return to fuel pump tube

(73-12-05, 07-100) to the main fuel pump with lockwire (OMat 238).

(21) Remove the fuel resistant container together with the drained fuel from

the engine.

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

unwanted materials.

R. Do Test 01 - fuel drains and oil circulation test (Refer to the Engine Manual,

Chapter 72-00-00, PB1301/TASK 72-00-00-700-801).

S. Do Test 02 - fuel and oil leak test (Refer to the Engine Manual, Chapter

72-00-00, PB1301/TASK 72-00-00-700-802).

T. Complete the Accomplishment Form on page 21 and send it to Rolls-Royce

Deutschland, Service Operations.

U. 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-BR700-73-101847 in the

Engine Service Record.

(2) Record the incorporation of Service Bulletin SB-BR700-73-101847 in the

Service Bulletins list of the Non-Modular Log Card.

Printed in Great Britain

SB−BR700−73−101847

Page 16 of 21

May 17/13

May 17/13 Initial Issue
Removal and Installation of the Spill Return To Fuel Pump Tube (73-12-05, 07-100)

Figure 1 (Sheet 1 of 4)

Printed in Great Britain

SB−BR700−73−101847

Page 17 of 21

May 17/13

May 17/13 Initial Issue
Removal and Installation of the Spill Return To Fuel Pump Tube (73-12-05, 07-100)

Figure 1 (Sheet 2 of 4)

Printed in Great Britain

SB−BR700−73−101847

Page 18 of 21

May 17/13

May 17/13 Initial Issue
Removal and Installation of the Spill Return To Fuel Pump Tube (73-12-05, 07-100)

Figure 1 (Sheet 3 of 4)

Printed in Great Britain

SB−BR700−73−101847

Page 19 of 21

May 17/13

May 17/13 Initial Issue
Removal and Installation of the Spill Return To Fuel Pump Tube (73-12-05, 07-100)

Figure 1 (Sheet 4 of 4)

Printed in Great Britain

SB−BR700−73−101847

Page 20 of 21

May 17/13

May 17/13 Initial Issue
Accomplishment Form

Printed in Great Britain

SB−BR700−73−101847

Page 21 of 21

May 17/13

May 17/13 Initial Issue

 

 SERVICE BULLETIN FEEDBACK FORM

May 17/13

Initial Issue

© Rolls-Royce Deutschland Ltd & Co KG

SB-BR700-73-101847

Page 1 of 1

Printed in Great Britain

Please use this form to give feedback on the quality of this Service Bulletin. The input you provide will be used to 

analyse areas of improvement and to take action to further improvement on the quality of our Service Bulletins.

We thank you for the time you spent in completing this form.

Please rate on a scale of 1 to 5, with 5 being the highest score:

- General quality rating of this Service Bulletin  1  2  3  4  5

- Quality rating of the Accomplishment Instructions  1  2  3  4  5

- Quality rating of the Illustration  1  2  3  4  5

- Is this Service Bulletin easy to understand ?  Yes  No 

If you have had difficulties to perform this Service Bulletin please quote below the area(s) and give a short 

description of the issue:

Operator: Overhaul Site:

Name/Title: Date:

Please send the completed Service Bulletin Feedback Form to Rolls-Royce Deutschland, Service Bulletin Group.

Email: mailto:RRD.SERVICE.BULLETINS@ROLLS-ROYCE.COM 

Planning Information

Section:

Material Information

Section:

Accomplishment Instruction

Section:

  1.A.  1.I.  2.A.  General

  1.B.  1.J.  2.B.  Get Access

  1.C.  1.K.  2.C.  Removal/Installation

  1.D.  1.L.  2.D.  Inspection

  1.E.  1.M.  2.E.  Test

  1.F.  1.N.  2.F.  Close the Access

  1.G.  1.O.  Log Book Entry

  1.H  1.P. 

Explanatory notes: