LCT and DASH actuators will remain pro-
grammed at the airspeed at which the gener-
ators were turned off. Normal engine trim is
disabled when generators are turned off.
2. GEN 1 and 2 switches OFF.
3. Land as soon as possible.
4. EMER ENG SHUTDOWN.
5. BATT switch OFF.
9-1-48. Smoke and Fume Elimination.
1. Airspeed Above 60 KIAS.
2. Pilots sliding window Open.
3. Helicopter attitude Yaw left, one half to
one ball width on turn and slip indicator.
4. Upper half of main cabin door Open.
O 5. RAMP EMER switch As required.
The combination of steps 2, 3, and 4 effective-
ly evacuates the cockpit and forward cabin of
smoke and fumes at airspeeds above 60
KIAS. Opening the cargo loading ramp evac-
uates the main cabin. With items in steps 2, 4,
and 5 opened, intensification of a smoldering
fire may occur. If the source of the fire cannot
be determined, close the cargo loading ramp
but keep the pilots windows and the upper
half of the main cabin door open. This will
allow the pilots to see the instrument panels
and outside references for landing.
6. Cargo loading ramp As required.
7. Copilots sliding window Closed.
8. NVG curtain Open (if applicable).
9-1-49. Fuel System.
9-1-50. Aux Fuel Pump Failure.
An auxiliary fuel pump failure will be indicated by an AUX
PRESS indicating light, on the FUEL CONTROL panel,
illuminating and /or the fuel quantity in the affected tank
remaining at the same level. Should this occur, proceed
1. FUEL QUANTITY selector switch Check.
If one or both auxiliary fuel tanks have fuel remaining:
2. AC-DC FUEL PUMP circuit breakers
3. FWD and AFT AUX FUEL PUMP switches
affected side) OFF.
4. AUX FUEL PUMP switch ON (each aux
tank with fuel remaining).
If AUX PRESS indicating light remains on:
5. AUX FUEL PUMP switch(es) (inoperative
pump(s)) OFF. Monitor FUEL QUANTITY
indicator for the affected tank.
6. AUX FUEL PUMP switche(es) ON for
operative pumps or OFF for inoperative
9-1-51. Fuel venting
Fuel venting from either main tank vent indicates a possi-
bility of fuel cell overpressurization. Should venting oc-
1. AUX FUEL PUMP switches (affected
2. Main tank (affected side) Monitor.
When 1,000 pounds of fuel remain:
3. AUX FUEL PUMP switches ON. (monitor
When tanks quantity reaches 1,600 pounds:
4. AUX FUEL PUMP switches OFF.
5. Steps 2 through 4 Repeat until
auxiliary tanks are empty.
9-1-52. L or R FUEL PRESS Caution.
If both main tank fuel pumps fail, fuel will be drawn from
the main tanks as long as the helicopter is operated
below 6,000 feet pressure altitude. If the L or R FUEL
PRESS caution comes on:
1. XFEED switch OPEN (above 6,000 feet
2. FUEL PUMP (S) circuit breakers Check in.
Pump(s) are operational Proceed with step 3.
Pumps are not operational Proceed with step 4.
3. XFEED switch CLOSED.
4. FUEL PUMP switches OFF (inoperative
9-1-53. Fuel Low Caution.
If the FUEL LOW and FUEL PRESS cautions come on
perform the following:
1. Fuel quantity Check individual tanks.
2. XFEED switch As required.
3. Land as soon as practicable.