As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT SEARCHLIGHT WAS REPORTED AS BEING INOP--THE BULB WOULD NOT ILLUMINATE. INVESTIGATION REVEALED THAT THE PROBLEM WAS IN THE PRINTED CIRCUIT BOARD. THE PRINTED CIRCUIT TRACK WAS FOUND TO BE BURNED IN TWO BETWEEN THE RELAY 30 AND POINT 13.