S 866-131
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737-300/400/500MAINTENANCE MANUAL
 S 846-132
 (55) Do the procedure to put the airplane back to its usual condition.
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737-300/400/500MAINTENANCE MANUAL
A/P NO. __________________________________ PUMP MFR_________________________________ SERVICE NO. ______________________________DATE _____________________________________

A or B basic current (from step 1, for system B, or step 19, for system A) before you use Fig. 603.

2
Subtract only the flows; do not subtract the AMPS before you change them to flows.
Internal Leakage Test Data Sheet (Sheet 1)
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737-300/400/500MAINTENANCE MANUAL
A/P NO. __________________________________PUMP MFR _________________________________ SERVICE NO. ______________________________ DATE _____________________________________

Internal Leakage Test Data Sheet
(Sheet 2)

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737-300/400/500MAINTENANCE MANUAL
A/P NO. __________________________________ PUMP MFR_________________________________ SERVICE NO. ______________________________DATE _____________________________________

Internal Leakage Test Data Sheet
(Sheet 3)

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A 737-300/400/500MAINTENANCE MANUAL
No. Step  Date A/P No. Ser. No. Pump Mfr. Part Tested  1 Amps  (cc/min) Flow  2 to get the Calculation Leakage  (cc/min) Leakage  (cc/min) Maximum Leakage 
32.  New reference flow  - - -
33.  leakage Left thrust reverser  Flow 32 Flow 33 minus  300
34a.  steering valve leakage Nose landing gear and3  Flow 34a minus Flow 32  1500 
34b.  steering valve leakage Landing gear and4  minus Flow 32 Flow 34b  2100 
35. cylinder leakage Steering valve and left  Flow 32 Flow 35 minus  900
36.  cylinder leakage Steering valve and right  Flow 32 Flow 36 minus  900
37.  lock leakage Left main gear and3  Flow 34a Flow 37 minus  300
38.  lock leakage Right main gear and3  Flow 37 Flow 38 minus  300

On airplanes with landing gear isolation valves. On airplanes without landing gear isolation valves.
Internal Leakage Test Data Sheet (Sheet 4)
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