Subject Subject No.
APU ACCESS DOOR ................................................................................................. 52-48-21 Description and Operation Latching Mechanism
LOWER NOSE COMPARTMENT ACCESS DOOR................................................... 52-48-31 Description and Operation Latching Mechanism Removal/Installation
ELECTRONIC EQUIPMENT COMPARTMENT EXTERNAL ACCESS DOOR ......... 52-48-41 Description and Operation
Latching Mechanism
Removal/Installation
Adjustment/Test
MISCELLANEOUS EXTERIOR SERVICE DOORS................................................... 52-49-0 Description and Operation
Section 48 Access and Blowout Door...................................................................... 52-49-11 Removal/Installation Adjustment/Test
Pressure Fueling Station Access Door .................................................................... 52-49-21 Adjustment
Tire Burst Protector Screen Doors........................................................................... *[5] 52-49-31 Maintenance Practices Removal/Installation
FIXED INTERIOR
CONTROL CABIN DOOR........................................................................................... 52-51-0 Description and Operation
Control Cabin Door Lock Switch/Light ..................................................................... 52-51-12 Removal/Installation Adjustment/Test
Control Cabin Door Lock.......................................................................................... 52-51-21 Removal/Installation
Control Cabin Door Emergency Exit Panels............................................................ 52-51-31 Removal/Installation
LAVATORY DOORS................................................................................................... 52-52-0 Description and Operation
5C8 Jun 20/89 Contents 52
Page 7
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Subject Subject No.
ENTRANCE STAIRS
FORWARD AIRSTAIR AND DOOR ........................................................................... *[4] 52-61-0 Description and Operation Trouble Shooting Adjustment/Test
FORWARD AIRSTAIR ................................................................................................ *[4] 52-61-100
Description and Operation
Actuation System
Carriage
Electrical System
Handrails
Handrail Extension
Rail Assemblies
Stair
Manual Operation
Removal/Installation
Forward Airstair Actuator ......................................................................................... *[4] 52-61-111 Removal/Installation
Forward Airstair Ballscrew ....................................................................................... *[4] 52-61-116 Removal/Installation
Forward Airstair Motor ............................................................................................. *[4] 52-61-121 Removal/Installation
Forward Airstair Carriage Step Actuating Mechanism............................................. *[4] 52-61-131 Removal/Installation
Forward Airstair Retract Limit Switches................................................................... *[4] 52-61-141 Removal/Installation Adjustment/Test
Forward Airstair Extend Limit Switches ................................................................... *[4] 52-61-151 Removal/Installation Adjustment/Test
Forward Airstair Lower Ladder Operating Switch.................................................... *[4] 52-61-161 Removal/Installation Adjustment/Test
Forward Airstair Lower Ladder Closed Switch......................................................... *[4] 52-61-171 Removal/Installation Adjustment/Test Subject Subject No.
5C8
Contents 52 Page 8 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/84
Forward Airstair Manual Handrail Stowed Switches................................................ *[4] 52-61-181 Removal/Installation Adjustment/Test
Forward Airstair Lower Ladder Lock........................................................................ *[4] 52-61-191 Adjustment/Test
Forward Airstair Door Slow-Down Operating Limit Switch ...................................... *[4] 52-61-201 Removal/Installation Adjustment/Test
Forward Airstair Speed-Up Limit Switch .................................................................. *[4] 52-61-211 Removal/Installation Adjustment/Test
Forward Airstair Angle Gearbox............................................................................... *[4] 52-61-221 Removal/Installation
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