E. Location Zones
Zone Area
141 Aft Cargo Compartment - Left
142 Aft Cargo Compartment - Right
240 Subzone - Passenger Compartment - Body Station 663.75 to Body Station 1016.00
F. Access Panels
Number Name/Location
822 Aft Cargo Door
G. Heated Potable Water Hose Installation
SUBTASK 30-71-06-420-001
(1) Connect the heated potable water hose fittings.
(a) For the fill fitting, tighten the heated hose to 620 ±80 in-lb (70 ±9 N·m).
(b) For all other fittings, refer to the task: Flexible Hose Installation, TASK 20-10-52-400-801.
SUBTASK 30-71-06-420-002
(2) Connect the electrical connectors to the heated water hose.
H. Heated Potable Water Hose Installation Test
SUBTASK 30-71-06-790-001
(1) Do a test for leaks in the potable water hose (TASK 38-10-00-790-801).
SUBTASK 30-71-06-720-001
(2) Measure the temperature of the hose and surrounding area.
SUBTASK 30-71-06-860-003
(3) Remove the safety tags and close these circuit breakers:
CAPT Electrical System Panel, P18-3
Row Col Number Name
D 18 C01463 WASTE/WTR LINE HEATERS
E 5 C00233 HEATERS DRAIN
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 412, 501, 507, 512, 513,
516, 518, 531, 532, 556, 557, 560-562, 567-569, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607,
610-615, 620, 625-627, 671, 672, 691-699, 803-813, 821, 822, 831-838, 841, 842, 851, 852, 854-858,
861-863, 871-874, 947, 948, 968-973, 980-999
E 18 C01473 HOSE HEATERS
ILF 401, 402, 405, 406, 409, 410, 416, 424, 425, 427-429, 451, 452, 491-500, 502-504, 508-510, 514,
515, 519, 520, 523-528, 530, 533, 535-537, 541, 542, 552-555, 559, 563, 564, 571-577, 686, 703,
707-710
F 16 C01473 HOSE HEATERS
ILF ALL
SUBTASK 30-71-06-720-002
(4) Do this test of the heated hose:
(a) If the temperature in the area is higher than 45 degrees F (7 degrees C), then decrease
the temperature of the thermostat.
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 heated hose.
The thermostat is in a bulge at the end of the hose.
(b) Make sure the hose heater is powered by either of these methods:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-71-06
Page 406
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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