(b)
Use clean fresh water to dilute contaminated areas of the blue stain.
(c)
Use a clean, moisture-free cloth or sponge to fully dry all surfaces and components.
(d)
Use a dry air supply to fully remove additional moisture from the contaminated areas which are difficult to touch.
(e)
If there are surface areas which remain with a blue stain, make a record of the precise location.
NOTE: A record of a blue stain area can help to find the cause of a possible new leak of blue water, should a leak occur in the future.
(f)
If there are signs of blue water on the toilet tank, make sure you remove all blue water from the toilet tank and all related components and connections.
NOTE: It is important that all blue stains are removed from the area. This will help when you do accurate visual inspections in the future.
(g)
If blue water was found in the modular toilet, make sure all signs of blue water and related stains are removed and the weep holes in the floor pan are free from blockage.
(5) When blue water is found in the aft cargo compartment equipment bay, do the steps that follow:
WARNING: DO NOT USE TOO MUCH FRESH WATER TO REMOVE THE BLUE STAIN BECAUSE ADDITIONAL WATER COULD CAUSE POSSIBLE DAMAGE TO ELECTRICAL EQUIPMENT. THIS CAN RESULT IN AN UNWANTED EFFECT ON THE FLIGHT SAFETY OF THE AIRPLANE.
(a)
Protect adjacent areas to the contaminated area, from the cleaning procedure, by the use of polyethylene sheeting as a waterproof cover.
(b)
Use clean fresh water to dilute contaminated areas of the blue stain.
(c)
If the area below the toilet tank shows signs of blue water contamination, fully clean the drain tube, the ground flush hose or the drain valve control cable with fresh water.
NOTE: You must be most careful with the use of water in the aft cargo compartment equipment bay; additional contamination must not occur.
(d)
Use a clean absorbent cloth or a sponge to remove laying blue water from all areas shown during the toilet over-servicing inspection of the aft cargo compartment equipment bay.
NOTE: It is important that all blue stains are removed from the area. This will allow accurate visual inspections to be done in the future.
(e)
Use a clean cloth to fully dry all surfaces and use a dry air supply to dry the areas which are difficult to touch.
(f)
If the blue water contamination shows on the electrical or electronic equipment, do the steps that follow: 1) Remove blue water from all surfaces, cables and connectors. 2) Use a dry air supply to remove all moisture from the contaminated areas.
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NOTE: Electrical cable looms can hold moisture between the separate wires. If possible, open the wires in a contaminated cable when you dry the cable.
3) Do a check of contaminated connectors for blue water ingress and dry as necessary.
NOTE: If you think a connector is contaminated with blue water, you must disconnect and fully examine the connector and the related equipment connector.
(g) Remove all signs of blue water from tubes which could conduct moisture, as necessary. 1) Do an operational test of equipment which possibly have been contaminated
with blue water.
2) Remove warning placard from flight compartment.
(6)
Install the toilet tank shroud (AMM 38-32-51/401).
(7)
Remove the tag and close the applicable lavatory flush motor circuit breaker.
(8)
Do the servicing procedure for the aft toilet system (AMM 12-17-00/201).
(9)
Replace the access panel in the rear bulkhead of the aft cargo compartment.
(10)
Close the aft cargo compartment door.
(11)
Remove all tools and equipment from the work area.
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GALLEY SPILL – MAINTENANCE PRACTICES (CONDITIONAL INSPECTION)
1. General
A. This procedure supplies one task. This task is to do an inspection and the cleanup of the areas of contamination after a liquid is spilled in the galley.
B. If liquids are spilled inside the galley, you must remove all signs of liquid and fully dry the areas of contamination immediately.
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