(c)
Remove the clamp that holds the ground flush line to the crease beam.
(6)
In the non-modular lavatories A, B, C:
(a)
Disconnect the top ground flush line from the connection on the lavatory floor.
(b)
Remove the top ground flush line.
(7)
In the modular lavatories, remove the plate and gasket that holds the ground flush line as it passes through the lavatory partition.
(8)
For the non-modular lavatories, D or E, remove the air seal that holds the ground flush line as it passes through the fire shroud.
(9)
For the ground flush line lavatory A, remove the access panels in the nose wheel well (AMM 12-31-11).
(10)
For the ground flush line for an aft lavatory, remove the access panels from the bulkhead in the aft cargo compartment.
(11)
Remove the clamps that hold the ground flush line to the drain line and structure under the lavatory.
(12)
`Disconnect the ground flush line from the connection on the internal side of the service panel.
(13)
For the ground flush line to modular lavatories A, B, C, D, E, or F, and non-modular lavatories D or E:
(a) Carefully feed the ground flush line out of the lavatory and into the area below the lavatory.
(14)
For the bottom ground flush line to non-modular lavatories A, B, or C:
(a) Disconnect the ground flush line from the connection under the lavatory.
(15)
Remove the ground flush line from the airplane.
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3. Toilet Ground Flush Line Installation
A. References
(1)
AMM 12-17-0, Toilet Servicing
(2)
AMM 12-31-11, Body section 41 Access Doors and Panels
(3)
AMM 25-40-01, Modular Lavatory Compartment
(4)
SOPM 20-50-12
B. Access
(1) Location Zones
103 Forward Lavatory A
113 Aft Left Lavatory B
114 Aft Right Lavatory C
118 Aft Left Lavatory D
109 Aft Right Lavatory E
NOTE: Not all Lavatories are installed on each airplane.
C. Procedure
(1)
Put the ground flush line into its approximate position under the lavatory.
(2)
For the ground flush line to modular lavatories A, B, C, D, E, or F, and non-modular lavatories D or E.
(a)
Carefully feed the ground flush line through the floor or crease beam.
(b)
Carefully feed the ground flush line through the lavatory partition.
(3)
For the ground flush line to non-modular lavatories A, B, or C, attach the ground flush line to the connection under the lavatory.
(4)
Connect the ground flush line to the internal side of the service panel.
(5)
Install the clamps that hold the ground flush line to the drain line and the structure under the lavatory.
(6)
For the modular lavatories:
(a)
Install the clamp that holds the ground flush line to the crease beam.
(b)
Put the gasket and the plate on the ground flush line.
(7)
For the non-modular lavatories D and E; install the air seal on the ground flush line.
(8)
For the non-modular lavatories A, B, or C, connect the top ground flush line to the connection on the lavatory floor.
(9)
Connect the ground flush line to the valve on the toilet tank.
(10)
Install the clamps that hold the ground flush line to the lavatory.
(11)
In the modular lavatories, install the gasket and plate on the lavatory partition.
(12)
In the non-modular lavatories D or E, install the air seal on the fire shroud.
NOTE: Bond the air seal to the ground flush line and the fire shroud. Use the method in SOPM 20-50-12.
(13)
Flush the toilet tank with water (AMM 12-17-0).
(14)
Ensure that there are no leaks from the connections for the toilet ground flush line.
(15)
Install the toilet tank shroud assembly, using the installation procedure for the lavatory waste tank (AMM 38-32-51).
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D. Return the airplane to its normal condition
(1)
Install the panels that were removed to gain access to the ground flush hose.
(2)
Accomplish the toilet servicing procedure (AMM 12-17-0).
(3)
Remove all tools and equipment from the work area.
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