TM 1-1520-238-T-5
7136
Change 4
745.
PRESSURIZED AIR SYSTEM MAINTENANCE OPERATIONAL CHECK (cont)
745
M68-042A
START / OFF/IGN
OVRD
SWITCHES
Figure 761.
Pilot Power Quadrant
M68043
VERTICAL
SCALE
INDICATORS
DIGITAL
READOUTS
Figure 762.
Pilot NG RPM% Indicator
Task
Result
p. Start/operate engine 1 (TM 1-1520-238-CL).
If loud banging sound is heard, refer to
TM 1-1520-238-T-4 to troubleshoot ECS time delay
relay.
If engine 1 does not start refer to TM 1-1520-238-T-4
to troubleshoot engine 1.