737 Operations Manual
Non-Normal Checklists -
Unannunciated
Copyright © The Boeing Company. See title page for details.
D6-27370-400E-TBCE NNC.0.1
NNC.0 Non-Normal Checklists-Unannunciated
ABORTED ENGINE START
Condition: One or more of the following conditions:
• No N1 rotation before the engine start lever is raised to IDLE
• No oil pressure indication by the time the engine is stabilized at idle
• No increase in EGT, within 10 seconds on the ground or 30 seconds in
flight, after the engine start lever is raised to IDLE
• No increase in, or a very slow increase in N1 or N2 after EGT indication
• EGT rapidly approaching or exceeding the start limit.
Before engine start lever raised to IDLE:
ENGINE START SWITCH. . . . . . . . . . . . . . . . . . . . . . . . . OFF
After engine start lever raised to IDLE:
Before starter cutout:
ENGINE START LEVER . . . . . . . . . . . . . . . . . . . CUTOFF
Continue to motor the engine for 60 seconds.
[Clears fuel and cools engine components.]
ENGINE START SWITCH . . . . . . . . . . . . . . . . . . . . . .OFF
After starter cutout:
ENGINE START LEVER . . . . . . . . . . . . . . . . . . . CUTOFF
After N2 decreases to below 20%:
ENGINE START SWITCH . . . . . . . . . . . . . . . . . . . GRD
Motor the engine for 60 seconds.
[Clears fuel and cools engine components.]
ENGINE START SWITCH . . . . . . . . . . . . . . . . . . . .OFF
June 07, 2002
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