S 034-003

 (3)  
Remove the overhead ceiling panels to get access to the overhead distribution manifold (Ref 25-21-45/401).

 D.  Remove the Sensor
 S 034-004
 (1)  
Disconnect the electrical connector from the duct temperature sensor.

 (2)
Remove the screws that attach the temperature sensor to the duct.

 (3)  
Remove the temperature sensor.

 S 034-005
 S 024-006
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A
737-300/400/500MAINTENANCE MANUAL
 TASK 21-61-41-404-007
 3.  Install the Duct Temperature Sensor (Fig. 401)___________________________________
 A. References
 (1)  
25-21-45/401, Sculptured Ceiling Panels

 (2)  
21-61-00/501 Temperature Control System

 B. Access
 (1)  Location Zones
 107 Forward Half of Cabin
 210 Air Conditioning Distribution Bay

 C. Procedure
 S 424-008
 (1)  
Put the sensor on the duct and install the screws.

 S 434-009

 (2)  
Connect the electrical connector to the duct temperature sensor.

 S 864-010

 (3)  
Remove the DO-NOT-CLOSE tag and close the TEMP CONTROL AUTOMATIC circuit breaker on the P6 panel.

 S 714-011

 (4)  
Do the operational test for the temperature control system (Ref 21-61-00/501).

 D. Put the Airplane Back to Its Usual Condition
 S 414-012
 (1)  
Install the center panel to the aft bulkhead in the forward cargo compartment.

 (2)  
Install the overhead ceiling panel (Ref 25-21-45/401).

 S 414-013
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A

737-300/400/500
MAINTENANCE MANUAL

OVERHEAD
OVERHEAD DISTRIBUTION
DISTRIBUTION DUCT
DUCT SEE A
SEE A
MAIN MAIN DISTRIBUTION DISTRIBUTION MANIFOLD MANIFOLD
SEEC  SEEC
AIRPLANES WITH OVAL AIRPLANES WITH ROUND OVERHEAD DISTRIBUTION DUCT OVERHEAD DISTRIBUTION DUCT
DUCT LIMITDUCT SENSOR
ANTICIPATOR SENSOR SEE B SEE B
DUCT 
ANTICIPATOR 
DUCT LIMIT  SENSOR 
SENSOR  FWD  SEE  B  DISTRIBUTION 
SEE  B  DUCTS 
FWD 

OVERHEAD DISTRIBUTION DUCT OVERHEAD DISTRIBUTION DUCT A1 A2
SCREW (3 LOCATIONS)
SENSOR ELECTRICAL CONECTOR
1
AIRPLANES WITH OVAL OVERHEAD DISTRIBUTION DUCT B2
AIRPLANES WITH ROUND OVERHEAD DISTRIBUTION DUCT
Duct Temperature Sensor Installation Figure 401 (Sheet 1)
E85077
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A 737-300/400/500MAINTENANCE MANUAL

Duct Temperature Sensor Installation
Figure 401 (Sheet 2)

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737-300/400/500MAINTENANCE MANUAL
 DUCT TEMPERATURE SENSORS - INSPECT/CHECK
________________________________________
 1.  General_______
 A.  There is one task in this procedure which is the duct temperature sensor check.
　
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