DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK
Tool Kit, Aircraft
Tool Kit, Electrical
Attack Helicopter Repairer
Make sure that helicopter safing procedures are accomplished. Observe all
safety precautions during troubleshooting or maintenance procedures.
Failure to do so could result in death or serious injury.
Refer to pilot station (fig. 612) and CPG station (fig. 613) for cockpit
configuration and equipment.
If referenced out of one paragraph or volume and into another for
additional troubleshooting, upon completion of the task, return to the
maintenance operational check for the original paragraph or volume.
1. Perform drive system visual inspection (TM 1-1520-238-23).
If APU is running, perform APU POWER DOWN.
2. Complete the maintenance operational check as follows:
a. On pilot center circuit breaker panel
(fig. 615), close VIB MON and ENG
START circuit breaker.
If VIB MON circuit breaker does not stay closed, go to
If ENG START circuit breaker does not stay closed,
refer to TM 11520238T6 to troubleshoot PILOTS
ELECT PWR PANEL.