As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: WITH EMERGENCY EXIT LIGHT SWITCH IN "ARM" POSITION, EMERGENCY EXIT LIGHTING IS ILLUMINATED. AIRPLANE WAS CONNECTED TO EXTERNAL POWER WITH BATTERIES ON. REPLACED COCKPIT OVERHEAD EMERGENCY LIGHT SWITCH 4WL (AALA202202220454) PER ESPM 20-45-21-01H AND AMM 31-14-25. REPLACED EMERGENCY POWER SUPPLY UNIT 10WL PER AMM 33-51-38.