Table 201/47-31-02-993-801 Normal Operation Values - General Guidance Only for operating both A/C
packs and dual bleed system (Continued)
NGS Shutoff
Valve
SOV (mA). Valve
Normally Closed.
(0mA closed,
greater than 0 mA
commanded open)
Commanded
Open
Commanded
Open
Commanded
Open
Commanded
Open
Commanded
Open
SOV (V)
Over Temp
Shutoff
Valve
OTSOV (mA).
Valve Normally
Closed. (0mA)
closed, greater
than 0 mA
commanded open)
Commanded
Open
Commanded
Open
Commanded
Open
Commanded
Open
Commanded
Open
OTSOV (V)
High Flow
Valve
HFV (mA). Valve
Normally closed.
(0mA closed,
greater than 0 mA
commanded open)
Closed
Commanded
Open
Closed
Commanded
Open
Closed
HFV (V)
NOTE: O2 Sensor operates during a portion of cruise or descent. Readings are not recorded
in NVM data.
J. Put the Airplane Back to the Usual Condition
SUBTASK 47-31-02-740-037
(1) Make sure all BDU initiated tests are complete.
(a) Push the ON/OFF button.
SUBTASK 47-31-02-410-004
(2) Close these access panels:
Number Name/Location
192CR ECS Access Door
192DR ECS High Pressure Access Door
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-31-02
Page 224
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999;
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405,
406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507, 508, 512-514, 516, 518,
524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672, 686, 703,
707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003