What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During an aircraft flight check-out, the second touch and go maneuver on runway 32 caused the aircraft to land hard. When the pilot selected the landing gear down for landing, the left green safe light did not illuminate. The left seat pilot then noted that there was a sheetmetal puncture on the upper left wing skin, above the gear. Low fly by was performed and ground crew determined that the left gear was not fully extended. The PIC elected to perform a gear down landing on runway 32 and landing was made uneventfully till the left gear contacted the ground and collapsed, causing the aircraft to veer to the left and off the edge of the runway down an embankment. The cause for the left main gear unsafe condition was the result of the failure of the left gear forward trunnion attach fitting, causing the gear forward attach to become disconnected. The hard landing caused a portion (one-third) of the fitting to exit through the top of the left wing skin.
As the FAA filed it
(-23) DURING AN AIRCRAFT FLIGHT CHECK-OUT, THE SECOND TOUCH AND GO MANEUVER ON RUNWAY 32 CAUSED THE AIRCRAFT TO LAND HARD. WHEN THE PILOT SELECTED THE LANDING GEAR DOWN FOR LANDING, THE LEFT GREEN SAFE LIGHT DID NOT ILLUMINATE. THE LEFT SEAT PILOT THEN NOTED THAT THERE WAS A SHEETMETAL PUNCTURE ON THE UPPER LEFT WING SKIN, ABOVE THE GEAR. LOW FLY BY WAS PERFORMED AND GROUND CREW DETERMINED THAT THE LEFT GEAR WAS NOT FULLY EXTENDED. THE PIC ELECTED TO PERFORM A GEAR DOWN LANDING ON RUNWAY 32 AND LANDING WAS MADE UNEVENTFULLY TILL THE LEFT GEAR CONTACTED THE GROUND AND COLLAPSED, CAUSING THE AIRCRAFT TO VEER TO THE LEFT AND OFF THE EDGE OF THE RUNWAY DOWN AN EMBANKMENT. THE CAUSE FOR THE LEFT MAIN GEAR UNSAFE CONDITION WAS THE RESULT OF THE FAILURE OF THE LEFT GEAR FORWARD TRUNNION ATTACH FITTING, CAUSING THE GEAR FORWARD ATTACH TO BECOME DISCONNECTED. THE HARD LANDING CAUSED A PORTION (ONE-THIRD) OF THE FITTING TO EXIT THROUGH THE TOP OF THE LEFT WING SKIN.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.