TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 Adjustment/Test 501 ALL General 501 Adjustment - Air Inlet Door 501 Adjustment - Switch, Air Inlet 505
 Door Adjustment - Vortex Generator 509 Flap Test - Air Inlet Door 512 ACTUATOR - AIR INLET DOOR 49-15-31 Removal/Installation 401 ALL
 DOOR - AIR INLET 49-15-22 Servicing 301 ALL Removal/Installation 401 ALL
 GENERATOR - VORTEX 49-15-23
 Removal/Installation 401 ALL
 APU SHROUD DRAINS 49-16-00

 DRAIN - APU SHROUD 49-16-11 Inspection/Check 601 ALL Cleaning/Painting 701 ALL
 ENGINE 49-20-00
______ APU ENGINE 49-21-00
 Description and Operation 1 ALL General 1 Compressor Section 1 Gearbox Section 4 Turbine Section 1 Operation 4
 Maintenance Practices 201 ALL Inspection/Check 601 ALL
 ENGINE FUEL AND CONTROL 49-30-00
_______________________

 49-CONTENTS

 BEJ Page 4 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CHAPTER 49 - AIRBORNE AUXILIARY POWER
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 APU FUEL SYSTEM 49-31-00
 Description and Operation 1 ALL
 General 1
 Drain - Fuel 5
 Filter - Low Pressure Fuel 1
 Heater - Fuel 6
 Thermostat - APU Control 4
 (Airplanes without the ETC)
 Unit - Combustor 5
 Unit - Fuel Control 1
 Valve - APU Fuel 1
 Valve - Fuel Solenoid 5
 Operation 6
 Maintenance Practices 201 ALL
 General 201
 Bleed - High Pressure 204
 Bleed - Low Pressure 201
 Check - Fuel Leakage 207
 Adjustment/Test 501 ALL
 General 501
 Check - APU Fuel Supply System 501
 Flow
 Check - APU Fuel Supply System 504
 Pressure
 COMBUSTOR UNIT 49-31-42
 Removal/Installation 401 ALL
 DRAIN - FUEL 49-31-71
 Inspection/Check 601 ALL
 General 601
 Inspection - Fuel Drain 601
 (APUs with the Fuel Drain
 Housing)
 Inspection - Fuel Drain 608
 (APUs without the Fuel
 Drain Housing)
 FILTER - HIGH PRESSURE FUEL 49-31-81
 Servicing 301 ALL
 FILTER - LOW PRESSURE FUEL 49-31-21
 Removal/Installation 401 ALL
 FILTER ELEMENT - LOW PRESSURE 49-31-22
 FUEL
 Removal/Installation 401 ALL

 49-CONTENTS

 BEJ Page 5 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
CHAPTER 49 - AIRBORNE AUXILIARY POWER
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 HEATER - FUEL 49-31-61 Removal/Installation 401 ALL PUMP - APU FUEL 49-31-13 Adjustment/Test 501 ALL SEAL - GEAR SHAFT, FUEL CONTROL 49-31-12 UNIT Removal/Installation 401 ALL UNIT - FUEL CONTROL 49-31-11 Removal/Installation 401 CONFIG 1 [*] [*] AIRPLANES WITHOUT THE TAFCU
 Removal/Installation 401 CONFIG 2 [*] [*] AIRPLANES WITH THE TAFCU
 VALVE - CHECK, FUEL HEATER 49-31-91
 Removal/Installation 401 ALL
 VALVE - CHECK, FUEL SENSING FLOW 49-31-93
 CONTROL
 Removal/Installation 401 ALL
 VALVE - FUEL SENSING FLOW 49-31-92

 CONTROL Removal/Installation 401 ALL Adjustment/Test 501 ALL
 VALVE - FUEL SOLENOID 49-31-31
 Removal/Installation 401 ALL
 Adjustment/Test 501 ALL

 IGNITION/STARTING 49-40-00
_________________ APU IGNITION AND START SYSTEM 49-41-00
 Description and Operation 1 ALL
 General 1
 Cable - Igniter 4
 Motor - Starter 1
 Plug - Igniter 4
 Relay - Start (R5) 1
 Unit - Ignition 1
 Operation 4

 CABLE - IGNITER 49-41-52
 Removal/Installation 401 ALL
 MOTOR - STARTER 49-41-11
 Removal/Installation 401 ALL
 PLUG - IGNITER 49-41-51
 Removal/Installation 401 ALL

 49-CONTENTS

 BEJ Page 6 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CHAPTER 49 - AIRBORNE AUXILIARY POWER

 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
　
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