As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT LT AND AFT RT DOOR EMERGENCY IDENT SIGNS, FS X699.27, FAIL TO ILLUMINATE WHEN SELECTED TO "ON". REPLACED POWER SUPPLY UNIT. INSPECTED AND FOUND PIN 10 OF CONNECTOR 3351-P6, READING .51 ABOVE TO GROUND. FOUND SHORT IN WIRE 3351-P20. REPAIRED DAMAGED WIRE. OPS TESTS GOOD.