What was found
EMERGENCY EXIT LIGHTS WILL NOT ILLUMINATE DURING PRE-FLIGHT TEST. THE CREW CHARGED THE LIGHTING SYSTEM BATTERY PACKS WITH ACFT POWER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EMERGENCY EXIT LIGHTS WILL NOT ILLUMINATE DURING PRE-FLIGHT TEST. THE CREW CHARGED THE LIGHTING SYSTEM BATTERY PACKS WITH ACFT POWER.