(b)
With a funnel and hose, apply water to the top surface of the upper spar and all the system penetrations between the NSTA 194 bulkhead vapor barrier and NSTA 148. 1) Apply 128 fluid ounces (1 gallon or 3785 ml) of water, in
approximatly 2 minutes.
NOTE: This is approximately 64 fluid ounces (1/2 gallon or
____ 1900 ml) per minute for 2 minutes.
S 792-291
(2) Make sure there are no leaks as follows:
(a)
Make sure you do not see any water leaks at the strut aft drain outlet (this shows unacceptable leakage through the bulkhead vapor barrier).
(b)
Make sure there are no signs of water on the thrust reverser bulb seal or the thrust reverser inner wall. 1) If you see water, look at the fluid drain pan for correct
installation.
(c)
After three minutes, make sure that a minimum of 115 fluid ounces (3401 ml) of water has collected in the container.
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(d) Make sure there is no puddling of water in the strut area.
NOTE: Puddling is defined as more than 0.5 fluid ounce (15 ml)
____ of water in a continuous pool.
S 362-292
(3) If you found water leaks during the test, do these steps:
(a)
Look at the fluid drain pan for correct installation.
(b)
If the leak is from a tube, do the procedure to repair the tube (AMM 20-11-05/801).
(c)
If the leak is from a seal, do the procedure to seal the applicable area of the leak (AMM 51-31-01/201).
(d)
After you repair the leak, do the applicable leak test again.
S 362-293
(4) If you do not collect the correct amount of water and cannot find leaks, do these steps:
(a)
Do the task to clear the applicable strut drain.
(b)
If you cannot remove the blockage with air, use a thin wire to clear the applicable drain tube.
(c)
Continue to remove the blockage in the tube and do the leak test until you collect the correct amount of water.
S 162-294
(5) Make sure there are no unwanted materials on the upper spar surfaces, upper spar drain inlets, closure spar surfaces, and the closure spar drain inlet.
G. If you will not do more leak checks at this time, put the airplane back to its usual condition.
S 162-300
CAUTION:_______MAKE SURE YOU KEEP THE STRUT AREA CLEAN. TOOLS, LOOSE AND UNWANTED MATERIALS IN THE STRUT COMPARTMENTS CAN BLOCK THE REMOVAL OF THE FLUIDS THROUGH THE STRUT DRAINS. IF YOU DO NOT REMOVE THE UNWANTED MATERIALS, YOU CAN CAUSE DAMAGE TO THE STRUT.
(1)
Make sure you remove all unwanted materials from the strut cavities.
(2)
Install the strut No. 3 forward fairing.
S 412-302
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S 412-303
(3) Install access panel 452AL/482AL on the left side of the strut at NSTA 164 (AMM 54-62-00/201).
S 442-304
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
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