(b)
Look for signs of the blue water on the areas which surround the toilet tank.
(c)
AIRPLANES WITH NON MODULAR LAVATORIES INSTALLED; Examine the toilet-tank catch basin for signs of blue water.
S 212-057
(8) In the electronic equipment compartment, do a visual inspection as follows:
(a) Look for signs of blue water in the area below the toilet tank.
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737-300/400/500MAINTENANCE MANUAL
(b)
Examine the toilet-tank drain tube, the drain-valve control cable and ground flush hose for signs of blue water.
(c)
Examine the toilet-drain floor adaptor and the adjacent area for signs of blue water.
(d)
Examine the catch-basin drain tubing for signs of blue water.
(e)
Examine the airstair drain pan and moisture shroud for signs of blue water.
WARNING: BLUE WATER CONTAMINATION CAN CAUSE SERIOUS DAMAGE TO
_______ ELECTRICAL OR ELECTRONIC EQUIPMENT. THIS CAN RESULT IN AN UNWANTED EFFECT ON THE FLIGHT SAFETY OF THE AIRPLANE.
(f) If you find blue water has flowed into the electronic equipment compartment, put a warning placard in the flight compartment to tell all personel, "DO NOT OPERATE ELECTRONIC EQUIPMENT", before you continue.
NOTE: The blue water can use the outer surface of tubes
____ and cables as flow-paths to contaminate different areas of the electronic equipment compartment.
(g) If you find signs of blue water contamination in the electronic equipment compartment, do a full visual inspection of the compartment.
NOTE: If a serious overservicing occurs, it is possible for
____ blue water to find flowpaths to many possible locations.
(h)
You must do full inspections of all electrical cable looms for signs of blue water.
(i)
You must do an inspection of all tubes, such as the
pitot-static tubes, for signs of blue water.
S 212-058
(9) If you have found signs of blue water, you must do the cleaning procedure for the toilet over-servicing task (AMM 05-51-12/201).
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S 212-059
(10)
If you have not found signs of blue water, continue with this task.
S 862-060
(11)
Remove the tag and close the applicable lavatory flush motor circuit breaker.
S 612-061
(12)
Do the servicing procedure for the the forward toilet system (AMM 12-17-00/301).
S 412-062
(13)
Close the electronic-equipment compartment door (AMM 52-48-41/501).
S 942-063
(14)
Remove all tools and equipment from the work area.
TASK 05-51-12-102-064
3. Toilet Over-Servicing Conditional-Cleaning (Forward Toilet)___________________________________________________________
A. General
(1)
If blue water contamination is found in the airplane, after an over-servicing event has occurred. An immediate clean-up action is necessary to prevent possible contamination of electrical or electronic components.
(2)
It is possible for blue water contamination to occur in a single isolated area or more than one area, dependent upon the amount of liquid spilled. All contaminated areas are to be completely cleaned.
(3)
It is most important that all moisture is removed from the contaminated area. Clean cloths and dry air are to be used.
(4)
In all areas where blue water contamination has to be removed and cleaned, you must use an approved disinfectant to kill all harmful micro-organisms.
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