AIRPLANE
FLIGHT
ABNORMAL
PROCEDURES
CTA APPROVED 4-10
ORIGINAL code 01 Page 7
AC STANDBY BUS OFF
Monitor electrical system.
Relevant Inoperative Items:
− Ignition 1A
− Ignition 2A
NOTE: Engine Start with batteries only is not available.
APU GENERATOR OFF BUS
Turn the APU generator off, then on.
If the APU GEN
OFF message persists, turn the APU generator off.
BATTERY 1 (2) DISCHARGING
Select the affected TRU to off and then to auto.
If the BATT 1 (2) DISCHARGING message persists, select the
affected TRU to off.
BATTERY 1 OFF
Verify battery 1 is set to on.
NOTE: If ba
ttery 1 selector is off, APU start is not available.
BATTERY 2 OFF
Verify battery 2 is set to auto.