As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE SCHEDULED MX, IT WAS OBSERVED THAT THE LT AFT EXTERNAL EMERGENCY LIGHT WAS INOPERATIVE. MX FOUND INTERNAL CONTACTOR SOLDER CORROSION PRESENT AND THEN REMOVED AND REPLACED WITH NEW SOLDER IAW SAE AS4461 REV A. OPS TEST OF THE LIGHT WAS GOOD.