On June 10, 1998, a Cessna 172K (registration N758FY) was involved in an aviation accident near Omaha, NE. No fatalities were reported. Investigators recorded the probable cause as: The aircraft modification not being in compliance with the Supplemental Type Certificate. A factor to the accident was the fracture of the landing gear axle during landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During the landing rollout, the left axle broke, causing the left gear leg to penetrate the turf. The aircraft nosed over and came to rest inverted. Investigation revealed missing spindle assemblies required by the STC.
Incident
The pilot reported a normal approach and touchdown, with a single bounce during the landing rollout. Approximately 15 to 20 yards into the rollout, the left axle fractured. This caused the left gear leg to penetrate the turf runway. Subsequently, the left wing contacted the ground, and the aircraft nosed over, coming to rest in an inverted position. The pilot shut down all aircraft systems and evacuated the passengers.
Investigation
Post-accident investigation found no evidence of a hard landing or significant side-loading applied to the landing gear. The aircraft had been converted to a conventional gear configuration under a Supplemental Type Certificate (STC) in June 1995. An FAA inspector's examination of the STC revealed that it requires the installation of wheel spindles inside the axle assemblies for reinforcement. On-site investigation by the FAA indicated that these spindle assemblies were not present at the time of the accident.
What happened in the 10 Jun 1998 Cessna 172K accident near Omaha, NE?
During the landing rollout, the left axle broke, causing the left gear leg to penetrate the turf. The aircraft nosed over and came to rest inverted. Investigation revealed missing spindle assemblies required by the STC.
Were there any fatalities in the 10 Jun 1998 Cessna 172K accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 10 Jun 1998 involved a Cessna 172K, registration N758FY, at Omaha, NE.
What was the probable cause of the accident?
The aircraft modification not being in compliance with the Supplemental Type Certificate. A factor to the accident was the fracture of the landing gear axle during landing.
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