As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION GOT AN AMBER LEFT GEAR DOOR LIGHT FOLLOWED BY A CLUNKING NOISE AND FLASHING GEAR INOP CAUTION LIGHT. ACFT DIVERTED TO ROA AND SWAPPED WITH ACFT 943/HRH. CREW PERFORMED AN ALTERNATE EXTENSION AND LANDED WITHOUT INCIDENT. MAINTENANCE SWUNG LANDING GEAR SEVERAL TIMES. CND, REMOVED AND REPLACED PSEU AS A PRECAUTION. OPS CHECK GOOD.