737 Operations Manual
Non-Normal Checklists -
Engines, APU
Copyright © The Boeing Company. See title page for details.
D6-27370-400E-TBCE NNC.7.25
START VALVE OPEN
Condition: The START VALVE OPEN light illuminated indicates
the start valve has opened or remains open after
engine start.
ENGINE START SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
If START VALVE OPEN light remains illuminated:
ISOLATION VALVE SWITCH . . . . . . . . . . . . . . . . . . . CLOSE
PACK SWITCH (affected side) . . . . . . . . . . . . . . . . . . . .OFF
[Causes operating pack to regulate to high flow in flight with flaps up.]
ENGINE BLEED AIR SWITCH (affected engine) . . . . . .OFF
APU BLEED AIR SWITCH (engine No. 1 only) . . . . . . .OFF
If during ground operations:
GROUND AIR SOURCE (if in use) . . . . . . DISCONNECT
ENGINE START LEVER . . . . . . . . . . . . . . . . . . . CUTOFF
June 07, 2002
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