CAUTION
TM 1-1510-225-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(a) GND COMM PWR switch -
Depress on.
(b) Comm 1 transceiver - Check
operation from pilot’s and copi-
lot’s position.
(c) GND COMM PWR switch -
Depress off.
Do not cycle LDG GEAR CONTR handle on the
ground.
10. Gear - DN.
11. Weather radar - OFF.
* 12. Fuel control panel - Check the firewall
valves as follows to ensure that they
are powered through the hot battery
bus:
(a) BATT switch - OFF.
(b) LEFT and RIGHT FIREWALL
VALVE circuit breakers - Pull.
(c) LEFT and RIGHT FIREWALL
SHUTOFF VALVE switches -
CLOSED. Listen for operation.
(d) BATT switch - ON.
(e) LEFT and RIGHT STANDBY
PUMP switches - ON.
C7-11
C41
(f) LEFT and RIGHT FIREWALL
SHUTOFF VALVE switches -
OPEN. Check L and R FUEL
PRESS annunciators extin-
guished.
2-3
