As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MX FOUND THAT THE EXTERIOR EMERGENCY LIGHT WAS INOPERATIVE SUCH THAT IT WAS ON IN THE ARM SWITCH POSITION. MX FOUND A LOOSE CONNECTOR ON THE BATTERY PACK, RE-SEATED THE CONNECTOR, AND THE SYSTEM RETURNED TO NORMAL OPERATION. (LP 9088466)