What was found
DURING PERIODIC CHECK, EMERGENCY LIGHTS IN TAIL AND AFT STAIRWELL AREA FAILED TEN MINUTE TEST. REPLACED BOTH BATTERY POWER SUPPLIES. OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING PERIODIC CHECK, EMERGENCY LIGHTS IN TAIL AND AFT STAIRWELL AREA FAILED TEN MINUTE TEST. REPLACED BOTH BATTERY POWER SUPPLIES. OPERATIONAL CHECK OK.