(a) Make sure the temperature of the gray water drain line [1] is 5 degrees F (3 degrees C)
higher than the first temperature you measured.
SUBTASK 30-71-02-720-003
(4) If the temperature in the area is higher than 45°F (7°C):
(a) Decrease the temperature of the thermostat [2].
NOTE: You can use MS-242N spray, G02319, ice, G02320, or compound, G01012, to
decrease the temperature. Permit 3 to 5 minutes for the temperature of the
thermostat to decrease before you check the temperature of the gray water drain
line heater [1].
(b) Make sure the gray water drain line [1] gets warm.
H. Put the Airplane Back to Its Usual Condition
SUBTASK 30-71-02-410-001
WARNING
SEAL THE CARGO COMPARTMENT WITH THE LINING. OBEY THE
INSTRUCTIONS IN THE SPECIFIED PROCEDURE WHEN YOU INSTALL THE
LINING. IF YOU INSTALL THE LINING INCORRECTLY, THE SMOKE CAN GET
INTO THE PASSENGER COMPARTMENT DURING A FIRE.
(1) Re-install the bulkhead liner. To install the liner, do this task: Forward Cargo Compartment Aft
Bulkhead Liner - Installation, TASK 25-52-17-400-801.
SUBTASK 30-71-02-410-002
(2) Close this access door:
Number Name/Location
821 Forward Cargo Door
SUBTASK 30-71-02-410-003
(3) Close this access door:
Number Name/Location
192CR ECS Access Door
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-71-02
Page 406
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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