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c. Instruments – MonitoR | Up
TM-1-1520-238-MTF Maintenance Test Flight Manual Helicopter Attack
AH-64A Apache | Next
12. Second engine start |
TM 1-1520-238-MTF
2-58.1
Change 3
PROCEDURE
TROUBLESHOOTING
REFERENCE
STARTING ENGINES – PILOT (CONT)
NOTE
Return of ECS airflow is positive indication
of starter dropout and should occur between
52 to 58% NG speed. The engine start light
must remain illuminated until 52% NG and
will normally extinguish prior to reaching
60% NG (but not necessarily simultaneously
with the return of ECS airflow).
g. Starter dropout – Verify engine start
light extinguished.
*h. Idle speed check – Verify time to
idle is within limits of figure 5-1.
upon completion of engine starting.
i. Engine instruments – Check.
j.
WARM ENGINE START. Less
than 4 hours since last shutdown.
Do not use this procedure for
inflight restarts. Start procedures
are as follows:
(1) START switch – IGN OVRD
until NG reaches 18 - 20%.
(2) START switch – OFF. Allow NG
to spool down below 5%.
(3) START switch – START.
(4) PWR lever – IDLE after NG
speed increases and TGT is
below 80 °C.
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