If ENG START LIGHT remains illuminated
after reaching 66 68% NG, set ENG
START switch for affected engine to IGN
ORIDE, then OFF.
The MASTER CAUTION and FUEL PSI
ENG 1 or 2 caution light on pilot caution/
warning panel may illuminate during
start. FUEL PSI ENG 1 or 2 caution light
should extinguish during start of the re-
For helicopters with -701 engines, a
full scale torque spike may occur during
For helicopters with -701C engines,
the torque spike will not occur.
WARM ENGINE START. Less than 4
hours since last shutdown. Do not use this
procedure for inflight restarts. Start proce-
dures 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 in-
creases and TGT is below 80
g. Caution/warning lights Check.
The second engine may be started with the
RTR BK switch set to LOCK, as desired or
required. Do not advance either PWR lever
to FLY until RTR BK switch is OFF.
L4. Second engine Start same as step 3, above.
5. RTR BK switch OFF.
Prior to advancing PWR levers, ensure
both engines are stabilized (Np, NG,
torque, and oil pressure). While advanc-
ing PWR levers to FLY, ensure both en-
gines indicate a torque rise to confirm
that the input drive clutches are en-
gaged. If an engine near 0% torque, pro-
ceed with emergency procedure for
input drive clutch malfunction.
6. PWR levers FLY. Advance both PWR levers
smoothly to FLY and ensure both torques in-
and Nr 100%.
8. Caution/warning lights Check.
9. ANTI-ICE panel/ENG INLET switch As re-
10. APU control switch OFF.
*8.21. BEFORE TAXI CHECK.
1. Armament and pylon safety pins Removed.
2. Chocks and external ICS cords Removed and
3. HARS control switch Check aligned then ad-
vance to OPR.
4. DASE As desired.
HIT/ANTI-ICE checks while operating in
adverse conditions (e.g., dust, desert,
coastal beach area, dry river beds) may
be deferred (maximum 5 flight hours) at
the discretion of the pilot in command un-
til a suitable location is reached.
In sandy or dusty conditions, it is advis-
able to perform the HIT check while air-
5. HIT check As required. Perform for first flight
of day. Refer to HIT log in aircraft logbook. This
step may be performed at any time prior to take-