What was found
DURING SYSTEM TEST, THE EMERGENCY LIGHT FAILED AT PTT PANEL, COM EMER L FAULT. REPLACED THE POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SYSTEM TEST, THE EMERGENCY LIGHT FAILED AT PTT PANEL, COM EMER L FAULT. REPLACED THE POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK NORMAL.