What was found
DURING PREFLIGHT, FOUND AFT RIGHT CABIN EXIT EMERGENCY SIGN INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING PREFLIGHT, FOUND AFT RIGHT CABIN EXIT EMERGENCY SIGN INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK OK.