Page____ Effectivity___________
401 ALL
401 ALL
1 ALL
1
4
1
4
1
4
101 ALL
401 ALL
401 ALL
401 ALL
701 ALL
401 ALL
701 ALL
401 ALL
401 ALL
49-CONTENTS
GUN Page 10 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 49 - AIRBORNE AUXILIARY POWER
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
CONTROL SYSTEM - APU 49-61-00
Description and Operation 1 ALL
General 1
Box - Thermocouple Trim 1
Controller - APU 5
Sensor - Inlet Pressure 5
Sensors - Air Temperature 1
Sensors - Speed 1
Switch - APU Control 5
Switch . APU Start Source 5
Thermocouples - Exhaust Gas 1
Transformer - Current 5
Unit - Serial Number 5
Identification
Operation 10
Component Location 101 ALL
Component Index
Component Location
BOX - THERMOCOUPLE TRIM 49-61-04
Removal/Installation 401 ALL
Adjustment/Test 501 ALL
CONTROLLER - APU 49-61-07
Removal/Installation 401 ALL
SENSOR - INLET PRESSURE 49-61-06
Removal/Installation 401 ALL
SENSOR - SPEED 49-61-02
Removal/Installation 401 ALL
49-CONTENTS
GUN Page 11 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 49 - AIRBORNE AUXILIARY POWER
TABLE OF CONTENTS
_________________ Chapter
Section
Subject_______ Subject_______
SENSORS - AIR TEMPERATURE 49-61-05
Removal/Installation
General
Sensor - Air Inlet
Temperature and
Thermocouple Cold Junction
(T1/T6) Removal
Sensor - Air Inlet
Temperature and
Thermocouple Cold Junction
(T1/T6) Installation
Sensor - T12 Air Temperature
Installation
Sensor - T12 Air Temperature
Removal
Sensor - T13 Air Temperature
Installation
Sensor - T13 Air Temperature
Removal
THERMOCOUPLE - EXHAUST GAS 49-61-03
TEMPERATURE
Removal/Installation
TRANSFORMER - APU CURRENT 49-61-11
Removal/Installation
UNIT - SERIAL NUMBER 49-61-10
IDENTIFICATION
Maintenance Practices
INDICATING SYSTEM_________________ 49-70-00
SYSTEM - APU EICAS INDICATING 49-71-00
Description and Operation
General
EICAS (APU) Maintenance Page
EICAS Status Page
Oil Quantity
EXHAUST_______ 49-80-00
Page____ Effectivity
401 ALL
401
401
407
410
404
412
406
401 ALL
401 ALL
201 ALL
1 ALL
1
1
1
13
49-CONTENTS
GUN Page 12 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 49 - AIRBORNE AUXILIARY POWER
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
SYSTEM - APU EXHAUST 49-81-00
Description and Operation 1 ALL
General 1
Duct - Inner Exhaust 1
Duct - Outer Exhaust 1
Liner - Acoustic 1
Operation 1
Component Location 101 ALL
Component Index
Component Location
CLAMP - APU EXHAUST V-BAND 49-81-04
Inspection/Check 601 ALL
DUCT - APU TURBINE EXHAUST 49-81-01
Inspection/Check 601 ALL
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