What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Gear would not come down. Pilot landed gear up without injuries or property damage. Main gear "clamshell" gear door actuator retaining bushing circlips had released the bushing, which slid out of the hydraulic cylinder on both sides, releasing hydraulic fluid and pressure. No incorrect maintenance or parts were found. Upon re-seating the same bushings and circlips, the gear swung in normal fashion.
As the FAA filed it
GEAR WOULD NOT COME DOWN. PILOT LANDED GEAR UP WITHOUT INJURIES OR PROPERTY DAMAGE. MAIN GEAR "CLAMSHELL" GEAR DOOR ACTUATOR RETAINING BUSHING CIRCLIPS HAD RELEASED THE BUSHING, WHICH SLID OUT OF THE HYDRAULIC CYLINDER ON BOTH SIDES, RELEASING HYDRAULIC FLUID AND PRESSURE. NO INCORRECT MAINTENANCE OR PARTS WERE FOUND. UPON RE-SEATING THE SAME BUSHINGS AND CIRCLIPS, THE GEAR SWUNG IN NORMAL FASHION.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.