As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NLG RED SAFETY LIGHT WILL NOT ILLUMINATE WHEN PTT SWITCH IS CLOSED. ALSO, WHEN CLOSING MLG AND NLG DOORS FROM GROUND CIRCUIT BREAKER IN COCKPIT FOR SAFETY VALVE TRIPS. SUSPECT BROKEN WIRE. REPAIRED WIRE IN LT MAIN WHEEL WELL. CLEANED LIGHT SOCKET IN NOSE WHEEL WELL. ACCOMPLISHED LAMP TEST AND OPERATED DOORS, OPS CKS NORMAL. AC OK FOR SERVICE