Smiths Aerospace
Electronic Systems – Malvern
DOC NO.0134ED
MAINTENANCE MANUAL SUPPLEMENT
BOEING B737-100/200/300/400/500
28-41-04
b) Adapter cable – 50 ohm, with BNC plug (Amphenol 31-202) to connect to the Hi-Z
receptacle on the test unit and a BNC receptacle (AMP 330885) to connect to the tee
connector.
(c) Ground cable
(3) TSU jumper harness:
(a) Part number 201475-001 (Smiths Aerospace Inc.)
B. References
(1) AMM 24-22-00/201, Manual Control
(2) AMM 27-81-00/201, Leading Edge Flaps and Slats
(3) AMM 28-23-00/201, Defueling
(4) AMM 28-41-81/401, Fuel Summation Unit
C. Access
(1) Location Zones
101
Control Cabin, Left
217
Right Main Wheel Well
303
Left Wing Inboard Leading Edge
402
Right Wing Outboard Leading Edge
403
Right Wing Inboard Leading Edge
(2) Access Panels
6540
Refueling Station Access Door
D. Prepare for the System Test
(1) Connect the external electrical power (Ref 24-22-00/201).
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND
TE FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP
CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL
MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE
FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSON OR DAMAGE
TO EQUIPMENT.
(2) Extend the leading edge flaps (Ref 27-81-00/201).
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
THE LE FLAP SAFETY LOCKS. THE LE FLAPS CAN MOVE QUICKLY IF YOU
DO NOT INSTALL THE SAFETY LOCKS CORRECTLY. THIS CAN CAUSE
INJURY TO PERSON OR DAMAGE TO EQUIPMENT.
(3) Install the locks on the leading edge flaps (Ref 27-81-00/201).
(4) Remove all the fuel from the fuel tank and the fuel in the sumps (Ref 28-23-00/201).
EFFECTIVITY
NOTE:
If you do an adjustment of only one tank system, you can move the fuel into the other
tanks.
CONFIG
4.2
Page 504
Dec 18/02
Airplanes with Smiths 2307 Model Fuel Quantity Indicators
with TSU
(SIMMONDS SYSTEM TESTER)