(2)
G00000 Shop Coat - Disposable
(3)
G00000 Mask, Face - Disposable
(4)
G01915 Glasses - Safety
E. Access
(1)
Location Zones
(a)
109 Aft Lavatory (E)
(b)
113 Aft Lavatory (B)
(c)
114 Aft Lavatory (C)
(d)
118 Aft Lavatory (D)
(e)
218 Aft Cargo Compartment
(f)
220 Aft Cargo Compartment Equipment Bay
(2)
Access Panels
(a)
1502 Aft Toilet Service Panel
(b)
4504 Aft Cargo Compartment Door
F. Procedure
(1)
Open the aft cargo compartment door for access (AMM 52-31-0).
(2)
Open the aft toilet service panel.
(3)
Remove the access panel from the rear bulkhead of the aft cargo compartment.
(4)
Open this circuit breaker on the load control center panel, P18, and attach a
DO-NOT-CLOSE tag:
(a) Applicable lavatory flush motor circuit breaker.
(5)
Drain the aft toilet system (AMM 12-17-0).
NOTE: It is only necessary to drain the system. Do not complete the full service procedure.
(6)
At the aft toilet service panel, perform the following steps:
(a)
Release and close the toilet tank drain valve handle (for example: R.H. AFT TOILET).
NOTE: Let the handle snap to the closed position to ensure the drain valve in the toilet tank gets a good seal (closed).
(b)
Disconnect the service cart toilet drain hose (TOILET DRAIN).
(c)
Perform a full visual inspection of the drain valve assembly.
(d)
If you find wear or damage to a toilet service panel component, perform the related maintenance procedure and replace as necessary (AMM 38-32-31).
(e)
Do not close the drain cap, at the aft toilet service panel.
(f)
At the aft toilet service panel, perform the following applicable checks: 1) Ensure the drain plug is removed on service panels without levers for a flapper valve.
2) Ensure the OPEN lever is set so the flapper valve is open on service panels with OPEN/CLOSE levers.
(7) Reconnect the service cart drain hose to the aft service panel.
.
500
May 01/99 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 38-32-0 Page 605
WARNING: DO NOT OVERFILL THE SYSTEM WITH WATER. CONTAMINATION OF ELECTRICAL EQUIPMENT WITH WATER CAN CAUSE SERIOUS DAMAGE AND HAVE AN UNWANTED EFFECT ON THE FLIGHT SAFETY OF THE AIRPLANE
(8)
Fill the aft toilet system with water until the lavatory bowl is half full with water (AMM 12-17-0).
(9)
In the aft lavatory, remove the toilet shroud assembly using the removal procedure for the toilet waste tank (AMM 38-32-51).
(10)
In the aft lavatory, perform a full visual inspection of the following components:
(a)
Toilet tank
(b)
Drain adapter (floor)
(c)
Drain valve and gasket seal
(d)
Toilet flush motor, pump gasket seal and filter assembly
(e)
Toilet filter and gasket seal
(f)
Ground flush fitting on the service panel
(11)
If you find the toilet tank is cracked and has a leak, replace the toilet tank (AMM 38-32-51).
(12)
If you find the toilet floor drain adapter is cracked or damaged, replace the adapter.
(13)
If you find a leak in the drain valve gasket on the top of the toilet tank, replace the gasket (AMM 38-32-51).
(14)
If you find a leak in the toilet flush motor pump or filter assembly gasket, replace the gasket (AMM 38-32-21, AMM 38-32-22).
(15)
If you find a leak on a ground flush fitting, tighten the coupling(s) or replace the tubing (AMM 38-32-51).
(16)
Disconnect the service cart toilet drain hose from the aft toilet service panel toilet drain.
(17)
Do not close the drain cap, at the aft toilet service panel.
(18)
On the aft toilet service panel, perform the following steps:
(a)
Ensure the drain plug is removed on service panels with no levers for a flapper valve.
(b)
Ensure the OPEN lever is set so that the flapper valve is open on service panels with OPEN/CLOSE levers.
(19)
If you see water in the toilet drain tube, perform the following steps:
(a)
Connect the toilet drain tube from the service cart to the aft toilet service panel (TOILET DRAIN).
(b)
Pull the tank drain valve handle on the aft toilet service panel to drain the tank (for example: R.H. AFT TOILET).
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