(b)  
External Pressure Hull to Center Tank Wire Harness Removal
 (c)  
External Pressure Hull to Left or Right Main Tank Harness Removal
 B.  References
 (1) AMM 12-31-21/201, Access Door and Panels ú (2) AMM 20-41-11/201, Static Grounding
 (3)  
AMM 24-22-00/201, Electrical Power
 (4)  
AMM 25-52-65/401, Cargo Compartment Ceiling Lining
 (5)  
AMM 25-52-73/401, Cargo Compartment Side Wall Lining
 (6)  
AMM 25-52-81/401, Cargo Compartment Bulkhead Lining
 (7)  
AMM 27-81-00/501, Leading Edge Flap and Slat Control System
 (8)  
AMM 32-00-01/201, Ground Lock Assemblies
 C.  Access
 (1)  Location Zones 210 Aft End of Forward Cargo Compartment (MX bay) 216 Left Main Gear Wheel Well 218 Forward end of Aft Cargo Compartment (Aux Tank) 302 Left Wing Outboard Leading Edge 303 Left Wing Inboard Leading Edge 402 Right Wing Outboard Leading Edge 403 Right Wing Inboard Leading Edge
 D. Prepare to Remove the IFQT Wire Harness
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITH ISOLATED FUEL QUANTITY  ú 28-41-45
 TRANSMITTER (IFQT)  ú ú 01.1 Page 401 ú Jul 12/02 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL
Forward Cargo Compartment 
Isolated Fuel Quantity Transmitter (IFQT) Harness Installation 
Figure 401 (Sheet 1)
M46445
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITH ISOLATED FUEL QUANTITY  ú 28-41-45
 TRANSMITTER (IFQT)  ú ú 01 Page 402 ú Mar 12/02 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL
(IF INSTALLED) 
MIX BAY
Forward Cargo Compartment 
Isolated Fuel Quantity Transmitter (IFQT) Harness Installation 
Figure 401 (Sheet 2)
M46449
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITH ISOLATED FUEL QUANTITY  ú 28-41-45
 TRANSMITTER (IFQT)  ú ú 01 Page 403 ú Mar 12/02 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL 
PRESSURE SEAL ASSEMBLY
TO TANK 
LEFT PRESSURE SEAL CONNECTOR 
(RIGHT PRESSURE SEAL CONNECTOR IS EQUIVALENT)
Forward Cargo Compartment 
Isolated Fuel Quantity Transmitter (IFQT) Harness Installation 
Figure 401 (Sheet 3)
M46466
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITH ISOLATED FUEL QUANTITY  ú 28-41-45
 TRANSMITTER (IFQT)  ú ú 01 Page 404 ú Mar 12/02 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL
BACKSHELL ASSEMBLY 
(BACKSHELL-TO-GROUND CONNECTION)
Forward Cargo Compartment 
Isolated Fuel Quantity Transmitter (IFQT) Harness Installation 
Figure 401 (Sheet 4)
M47994
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITH ISOLATED FUEL QUANTITY  ú 28-41-45
 
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