TM 1-1510-253-CL
b. If PRESSURE NORMAL or
PRESSURE LOW and light remains
illuminated: 70 pounds of fuel
remains in that wing tank.
(1) Land -- As Soon As Practicable
c. If still low: -- 75 pounds of fuel is
unusable in that wing tank. Subtract
75 pounds from fuel indicated on
quantity gauge to get remaining
usable fuel.
L FUEL FILTER or R FUEL FILTER
Light Illuminated
NOTE
Indicates corresponding fuel filter is be-
ing bypassed due to filter blockage.
1. Illumination in flight -- Monitor Engine
Operation.
2. Illumination on ground -- Do Not Takeoff.
ELECTRICAL.
AC BUS / INVERTER FAILURE
1. Both AC BUS Lights Illuminated:
a. INVERTER Switch -- Select Other
Inverter
b. Inverter Circuit Breaker -- CHECK
2. One AC BUS Light Illuminated:
a. AC BUS TIE Circuit Breaker --
CHECK
BATTERY FAULT Light Illuminated
1. Both BATT Switches -- OFF
2. Left BATT Switch -- RESET / ON
a. If BATTERY FAULT light remains off:
-- Leave battery ON and proceed to
step 3
E-20