What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Left main gear collapsed on touchdown. (.4)the pilot stated that he made a normal approach to the runway, had a normal touchdown, and the aircraft bounced once during the landing rollout. Approximately 15 to 20 yards into the landing rollout the left axle broke, causing the left gear leg to penetrate into the turf runway. The left wing contacted the ground, aircraft nosed over, and then came to a stop in an inverted position. Pilot stated that he shut down all of the aircraft systems and evacuated the passengers from the aircraft. Post accident investigation showed no indications of a hard landing or significant side-loading applied to the landing gear. The aircraft had been converted into a conventional gear type aircraft under a supplemental type certificate (STC) in June of 1995. Subsequent investigation done by an inspector with the federal aviation administration (FAA) showed that the STC requires that there is an installation of wheel spindles inside the axle assemblies to provide reinforcement. On site investigation, completed by the FAA, indicated that the a bove noted spindle assemblies were not present at the time of the accident.(-23) on June 9, 1998, approximately 2108, Cessna R172K, N758FY, experienced substantial damage as result of a failure of the LH MLG axle, Cessna pn 0541199-1. The failure occurred shortly after touchdown at the North Omaha Airport, Omaha, NE. The owner and operator, brian j. bogard and two passengers reported no injury. The aircraft had been altered to a tail wheel configuration under the robert l. williams STC SA383GL on June 15, 1995. Subsequent investigation disclosed the main landing gear axles assemblies were improperly configured at time of the accident. The STC requires installation of 3-1379-1 wheel spindles inside the 0541199-1 axle assemblies to provide reinforcement. Spindle assemblies were not present at the time of the accident.
As the FAA filed it
LEFT MAIN GEAR COLLAPSED ON TOUCHDOWN. (.4)THE PILOT STATED THAT HE MADE A NORMAL APPROACH TO THE RUNWAY, HAD A NORMAL TOUCHDOWN, AND THE AIRCRAFT BOUNCED ONCE DURING THE LANDING ROLLOUT. APPROXIMATELY 15 TO 20 YARDS INTO THE LANDING ROLLOUT THE LEFT AXLE BROKE, CAUSING THE LEFT GEAR LEG TO PENETRATE INTO THE TURF RUNWAY. THE LEFT WING CONTACTED THE GROUND, AIRCRAFT NOSED OVER, AND THEN CAME TO A STOP IN AN INVERTED POSITION. PILOT STATED THAT HE SHUT DOWN ALL OF THE AIRCRAFT SYSTEMS AND EVACUATED THE PASSENGERS FROM THE AIRCRAFT. POST ACCIDENT INVESTIGATION SHOWED NO INDICATIONS OF A HARD LANDING OR SIGNIFICANT SIDE-LOADING APPLIED TO THE LANDING GEAR. THE AIRCRAFT HAD BEEN CONVERTED INTO A CONVENTIONAL GEAR TYPE AIRCRAFT UNDER A SUPPLEMENTAL TYPE CERTIFICATE (STC) IN JUNE OF 1995. SUBSEQUENT INVESTIGATION DONE BY AN INSPECTOR WITH THE FEDERAL AVIATION ADMINISTRATION (FAA) SHOWED THAT THE STC REQUIRES THAT THERE IS AN INSTALLATION OF WHEEL SPINDLES INSIDE THE AXLE ASSEMBLIES TO PROVIDE REINFORCEMENT. ON SITE INVESTIGATION, COMPLETED BY THE FAA, INDICATED THAT THE A BOVE NOTED SPINDLE ASSEMBLIES WERE NOT PRESENT AT THE TIME OF THE ACCIDENT.(-23) ON JUNE 9, 1998, APPROXIMATELY 2108, CESSNA R172K, N758FY, EXPERIENCED SUBSTANTIAL DAMAGE AS RESULT OF A FAILURE OF THE LH MLG AXLE, CESSNA PN 0541199-1. THE FAILURE OCCURRED SHORTLY AFTER TOUCHDOWN AT THE NORTH OMAHA AIRPORT, OMAHA, NE. THE OWNER AND OPERATOR, BRIAN J. BOGARD AND TWO PASSENGERS REPORTED NO INJURY. THE AIRCRAFT HAD BEEN ALTERED TO A TAIL WHEEL CONFIGURATION UNDER THE ROBERT L. WILLIAMS STC SA383GL ON JUNE 15, 1995. SUBSEQUENT INVESTIGATION DISCLOSED THE MAIN LANDING GEAR AXLES ASSEMBLIES WERE IMPROPERLY CONFIGURED AT TIME OF THE ACCIDENT. THE STC REQUIRES INSTALLATION OF 3-1379-1 WHEEL SPINDLES INSIDE THE 0541199-1 AXLE ASSEMBLIES TO PROVIDE REINFORCEMENT. SPINDLE ASSEMBLIES WERE NOT PRESENT AT THE TIME OF THE ACCIDENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.