As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE WORKING TC 78233008 FOUND RH AFT OVERWING EXIT SIGN INOP. GROUNDED - YES. UPON INVESTIGATION FOUND CONNECTORS D12462, D12460 & D12464 DISCONNECTED, REF WMD 33-51-13-8. CONNECTIONS RESTORED, NO HELP. DURING WIRING CHECKS FOUND NO POWER AT CONNECTOR D12460. FUSE FOUND BAD IN EMERGENCY EXIT LIGHT BATTERY PACK M1695. FUSE REPLACED PER AMM 33-51-06-960-805.