49-CONTENTS
BEJ Page 7 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 ___________
APU BLEED AIR SYSTEM 49-52-00
Description and Operation 1 ALL
General 1
Duct - Bleed Air 5
Module - Miscellaneous 5
Switching
Regulator - Differential Air 9
Pressure
Thermostat - APU Control 6
(Airplanes without the ETC)
Valve - Bleed Air 1
Valve - Proportional Control 6
(Airplanes with the ETC)
Valve - Surge Bleed 9
Operation 9
DUCT - BLEED AIR 49-52-13
Removal/Installation 401 ALL
REGULATOR - DIFFERENTIAL AIR 49-52-21
PRESSURE
Servicing 301 ALL
Removal/Installation 401 ALL
Adjustment/Test 501 ALL
SEAL - APU DUCT 49-52-15
Removal/Installation 401 ALL
SWITCH - OVERTEMPERATURE CONTROL 49-52-81
Maintenance Practices 201 [*]
General 201
Deactivation -206
Overtemperature Control
Switch
Installation -203
Overtemperature Control
Switch
Operational Test -205
Overtemperature Control
Switch
Removal - Overtemperature 201
Control Switch
[*] AIRPLANES WITH THE OVERTEMPERATURE CONTROL SWITCH
T-FITTING - COMPRESSOR DISCHARGE 49-52-91
PRESSURE ORIFICED
Cleaning/Painting 701 ALL
49-CONTENTS
BEJ Page 8 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 ___________
THERMOCOUPLE - APU 49-52-71
OVERTEMPERATURE
Removal/Installation 401 [*]
[*] APU WITH THE APU OVERTEMPERATURE THERMOCOUPLE
THERMOSTAT - APU CONTROL 49-52-32
Removal/Installation 401 [*]
[*] AIRPLANES WITHOUT THE ETC
Adjustment/Test 501 [*]
[*] AIRPLANES WITHOUT THE ETC
VALVE - BLEED AIR 49-52-11
Removal/Installation 401 ALL
VALVE - PROPORTIONAL CONTROL 49-52-31
Removal/Installation 401 [*]
[*] AIRPLANES WITH ETC
VALVE - SURGE BLEED 49-52-41
Removal/Installation 401 ALL
Adjustment/Test 501 ALL
VALVE - 3-WAY SOLENOID 49-52-61
Removal/Installation 401 ALL
ENGINE CONTROLS 49-60-00
_______________ APU CONTROLS 49-61-00
Description and Operation 1 ALL
General 1
Control - Electronic 7
Temperature (Airplanes with
the ETC)
Sensor - Compressor Inlet 5
Temperature (Airplanes with
the ETC)
Switch - Electronic Speed 5
Switch - Low Oil Pressure 5
Switch - Oil Temperature 5
Switch - Sequencing Oil 5
Pressure
Unit - APU Control 1
Operation 7
49-CONTENTS
BEJ Page 9 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
_________________
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