What was found
PRE FLT 5564 - OKC - EMERGENCY LIGHT MAIN DOOR EXIT MARKER INOP. MAINTENANCE REMOVED AND REPLACED NR 1 INVERTER, CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PRE FLT 5564 - OKC - EMERGENCY LIGHT MAIN DOOR EXIT MARKER INOP. MAINTENANCE REMOVED AND REPLACED NR 1 INVERTER, CHECK GOOD.