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CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
GENERAL
A drain-valve assembly is installed in the wash basin of each lavatory.
DESCRIPTION AND OPERATION
The drain-valve assembly (referred to as the drain assy) lets the wastewater
drain from the wash basin. Either a selectable drain assy or permanently open
drain assy is installed.
Selectable Drain Assy
With the control lever, the user can open or close the drain assy.
Open to let the water flow out of the wash basin.
Close to keep the water in the wash basin.
Permanently Open Drain Assy
To keep water in the wash basin, use a plug to close inlet of the drain assy.
DRAIN VALVE
TR1 A318/A319/A320/A321 FLEET CCOM Page 28 of 34
CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
DRAIN VALVE
PULL
RING
A
DRAIN
VALVE
A
EXAMPLE
LAVATORY
NOC 02110 01029 0001
1. Location
A drain valve is installed in the wastewater line under each wash basin.
2. Description
The drain valve lets the wastewater drain to the drain masts and stops the
leakage of air pressure through the drain mast.
3. Operation
The drain valve opens only when water flows through the drain masts.
By pulling the ring located at the top of the valve, it allows to override the
wastewater drainage from the wash basin.
TOILET OPERATION
Close the cover of the toilet and push the flush button.
TR1 A318/A319/A320/A321 FLEET CCOM Page 29 of 34
CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
TOILET OPERATION
FLUSH BUTTON
COVER
EXAMPLE
LAVATORY
NOC 02110 01030 0001
TR1 A318/A319/A320/A321 FLEET CCOM Page 30 of 34
CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
LAVATORY
ALL
In the lavatory is an unexpected water flow.
ACTION RESULT/SOLUTION
YES NO
1. Is there an unexpected water flow in the lavatory? 2. END
2. Turn the water off in the lavatory.
-- Open the access door to the manual water shut-off valve. For
information on the location: Refer to Toilet and Washroom
Function.
-- Turn the control handle or lever of the manual water shut-off
valve into the closed position.
Has the water flow stopped? 3. 2.
3. To keep passengers from using the lavatory, lock the lavatory until
the end of the flight.
-- Lift-up the spring loaded cover.
-- Slide the knob to the side until the indicator shows occupied. 4. 4.
4. Log entry:
-- Make an entry in the log about the problem and about the
deactivation. END END
Excessive noise level due to permanent suction because of an open toilet
gate valve.
ACTION RESULT/SOLUTION
YES NO
1. Is there excessive noise in the lavatory? 2. END
2. To reduce the noise:
-- Throw a blanket or cushion into the toilet bowl. Is the noise
reduced? 3. 2.
3. To keep passengers from using the lavatory, lock the lavatory until
the end of the flight:
-- Lift-up the spring loaded cover.
-- Slide the knob to the side until the indicator shows occupied. 4. 3.
TR1 A318/A319/A320/A321 FLEET CCOM Page 31 of 34
CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
4. Log entry:
-- Make an entry in the log about the problem and about the
deactivation. END END
The lavatory has to be locked due to other reasons (decision of cabin crew
members).
ACTION RESULT/SOLUTION
YES NO
1. To keep passengers from using the lavatory, lock the lavatory until
the end of the flight:
-- Lift-up the spring loaded cover.
-- Slide the knob to the side until the indicator shows occupied. 2. 2.
2. Log entry:
-- Make an entry in the log about the problem and about the
deactivation. END END
TR1 A318/A319/A320/A321 FLEET CCOM Page 32 of 34
CABIN CREW OPERATING MANUAL
CABIN INTERIOR
LAVATORIES
02.110
OCT 27/07
ALL
RESTART AN INOPERATIVE TOILET
The vacuum system does not work properly and a related message comes up
on the FAP. Restart this inoperative toilet through a reset of the Vacuum System
Controller (VSC).
On the FAP following CIDS failure message is displayed: Vacuum System
Controller
ACTION RESULT/SOLUTION
YES NO
1. Is there an inoperative toilet ? 2. END
2. On the aft cabin circuit breaker (C/B) panel (2001 VU):
-- Pull the VACUUM SYS C/B, located at position A6.
-- Wait for 30 seconds.
-- Push the VACUUM SYS C/B again. 3. 3.
3. Does the vacuum system work ? END 4.
　
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