1996-09-18: Cessna 152 — Sierra Academy OF Aeronautics — Fresno, CA

Casualties unknown • Fresno, CA, US

Probable cause

A separation of a connecting rod due to a lack of internal lubrication from a blocked oil passage after a bearing had shifted on its journal.

— NTSB Determination

Accident narrative

Shortly after departure and after climbing through 4,000 feet, the engine failed. The pilot executed an forced landing in a soft open field. During the landing rollout, the nose gear dug into the dirt and the aircraft nosed over. Examination of the engine disclosed that the bearing had shifted on the journal blocking the oil lubrication passage which resulted in a separation of the connecting rod and subsequent engine failure.

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Frequently asked questions

What happened in the 1996-09-18 Cessna 152 accident near Fresno, CA?

Shortly after departure and after climbing through 4,000 feet, the engine failed. The pilot executed an forced landing in a soft open field. During the landing rollout, the nose gear dug into the dirt and the aircraft nosed over. Examination of the engine disclosed that the bearing had shifted on the journal blocking…

What aircraft was involved and where did it happen?

The accident on 1996-09-18 involved a Cessna 152, registration N94381, operated by Sierra Academy OF Aeronautics, at Fresno, CA.

What was the probable cause of the accident?

A separation of a connecting rod due to a lack of internal lubrication from a blocked oil passage after a bearing had shifted on its journal.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X06777. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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