As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OVERHEAD EMERGENCY EXIT SIGN AND AT THE SERVICE DOOR INOPERATIVE. TROUBLESHOT AND FOUND THE NR 1 INVERTER TO BE BAD IAW WM 33-50-50. INSTALLED A USED INVERTER AND OPS CHECKED IAW W/C 33-700-17, OPS CHECKED GOOD. NO FURTHER DEFECTS NOTED.