On October 24, 1983, a Piper PA31-350 (registration N62898) was involved in an aviation accident near Chillicothe, MO. Investigators recorded the probable cause as: The up-lock assembly rod end bearing attachment bolt for the left main landing gear had failed. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A pilot attempted to lower landing gear during arrival; only two of three indicated down. After burning fuel for about an hour, a gear-up landing was performed on a grassy area beside the active runway. Investigation revealed a failed bolt in the left gear up-lock assembly.
Incident Summary
During arrival, the pilot attempted to lower the landing gear. Two of the three landing gear legs indicated down and locked, but the left main landing gear would not extend. Unable to remedy the situation, the pilot continued flying for approximately one hour to reduce fuel weight. The pilot then intentionally performed a gear-up landing before dark. The landing took place on a grassy area adjacent to the active runway.
Investigation Findings
An investigation into the incident was conducted. Examination of the aircraft revealed that the up-lock assembly rod end bearing attachment bolt for the left main landing gear had failed. This failure prevented the left gear from extending and locking into position. No other issues were identified in the landing gear system.
Conclusion
The investigation determined the cause of the landing gear malfunction to be a failed bolt in the left gear up-lock assembly. The pilot's decision to burn fuel and perform a controlled gear-up landing in a grassy area was consistent with standard procedures for such a situation.
Probable cause
The up-lock assembly rod end bearing attachment bolt for the left main landing gear had failed.
Frequently asked questions
What happened in the 24 Oct 1983 Piper PA31-350 accident near Chillicothe, MO?
A pilot attempted to lower landing gear during arrival; only two of three indicated down. After burning fuel for about an hour, a gear-up landing was performed on a grassy area beside the active runway. Investigation revealed a failed bolt in the left gear up-lock assembly.
What aircraft was involved and where did it happen?
The accident on 24 Oct 1983 involved a Piper PA31-350, registration N62898, at Chillicothe, MO.
What was the probable cause of the accident?
The up-lock assembly rod end bearing attachment bolt for the left main landing gear had failed.
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