(a)  Remove the probe adapter from the probe.
 NOTE: Dry off the pitot-static probe with a soft rag when you
____
 use ethylene glycol.

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737-300/400/500MAINTENANCE MANUAL
 CAUTION: MAKE SURE THAT YOU REMOVE ALL OF THE PIECES OF TAPE FROM
_______ EACH PITOT-STATIC PROBE. THE SYSTEM WILL NOT OPERATE CORRECTLY WHEN THE TAPE IS IN ITS POSITION.
 (b)  Remove the vinyl adhesive tape from the probe pitot chamber drain hole.
 S 845-077
 (3)  
Examine the pitot-static probes for unwanted materials and rough locations on the inner and outer surfaces (Ref 34-11-11/601).

 S 845-078

 (4)  
Make sure that the pitot-static probes do not show damage to the pitot tip or the static ports (Ref 34-11-11/601).

 S 845-079

 (5)  
Close the STALL WARNING NO. 1 and NO. 2 circuit breakers on load control panels P6 and P18.

 S 845-080

 (6)  
Close the FLAP LOAD RELIEF circuit breaker on the load control panel P6.

 S 865-340

 (7)  
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 TASK 34-11-01-795-082
 4. The First Officer's Pitot System Leak Test
__________________________________________
 A. Standard Tools and Equipment
 (1)  
Air data test set, Castleberry AT700-2, Castleberry Instr & Avionics, Austin, TX; or equivalent

 (2)  
Pitot-static probe adapter kit, P/N AD-953-7, Nav-Aids Ltd., Montreal, Canada; or equivalent

 (3)  
Flow restrictors, control valves, cutoff valves, vinyl adhesive tape, and port seals as required

 B. References
 (1)  
24-22-00/201, Manual Control

 (2)  
34-11-11/601, Pitot-Static Probe

 C. Prepare for the Test
 S 865-341
 (1)  Supply electrical power (AMM 24-22-00/201).
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737-300/400/500MAINTENANCE MANUAL
 S 865-342
 WARNING:_______YOU MUST OPEN THE FLAP LOAD RELIEF CIRCUIT BREAKER. YOU CAN CAUSE INJURY TO PERSONS.
 (2)  Open the FLAP LOAD RELIEF circuit breaker on the load control panel P6.
 S 865-343 CAUTION: YOU MUST OPEN THE DIGITAL STALL WARNING COMPUTER (DSWC) CIRCUIT
_______ BREAKERS. YOU CAN CAUSE THE DSWC TO FAIL THE SELF-TEST UNTIL IT IS SET AGAIN.
 (3)  Open the STALL WARNING NO. 1 and NO. 2 circuit breakers on load control panels P6 and P18.
 S 865-344
 WARNING:_______MAKE SURE THAT THE PROBE HEAT IS NOT ON. YOU CAN CAUSE INJURY TO PERSONS.
 (4)  Install the pitot-static probe adapter on the upper right pitot-static probe.
 CAUTION:_______DO NOT EXTEND THE SEALS INTO THE PITOT DRAINS . YOU CAN CAUSE DAMAGE TO THE SURFACE IN THE AREA WHEN YOU REMOVE THE SEALS.
 (a)  Seal the pitot chamber drain hole on the bottom of the probe with vinyl adhesive tape.
 NOTE: You will find the drain hole about 2.25 inches aft of
____
 the probe tip.

 CAUTION: MAKE SURE THAT YOU FLUSH THE PROBE ADAPTER WITH WATER
_______ BEFORE YOU ATTACH THE ADAPTER TO THE PROBE. YOU CAN CAUSE DAMAGE TO THE PROBE OR THE ADAPTER.
 (b)  Flush the probe adapter with water.
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