As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT MAIN LANDING GEAR WOULD NOT RETRACT OR EXTEND. HUNG UP IN MID TRAVEL. DOVE AIRCRAFT AND PERFORMED SUDDEN PULL UP AND LANDING GEAR WENT TO DOWN AND LOCK POSITION. AIRCRAFT RETURNED TO DUT AND MADE A NORMAL LANDING. MAINTENANCE FOUND LT WORM GEARBOX COUPLING BROKEN. REPLACED COUPLING AND PERFORMED GEAR SWINGS WITH NORMAL OPERATION.