Casualties unknown

1998-02-18: Air Tractor AT-301 (N3656C) — Wasco, CA

Wasco, CA, US

On February 18, 1998, an Air Tractor AT-301 (registration N3656C) was involved in an aviation accident near Wasco, CA. Investigators recorded the probable cause as: The pilot overboosting the engine on takeoff which resulted in a cracked cylinder and subsequent loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

After takeoff, a pilot heard a loud bang and felt engine vibration. During an attempt to return to the runway, the aircraft crashed. A cracked number two cylinder was found.

Incident Overview

Shortly after takeoff, the pilot of the aircraft heard a loud bang and experienced a strong engine vibration. The pilot then attempted to return to the runway, but the aircraft crashed during the maneuver.

Post-Crash Findings

Examination of the engine after the accident revealed that the number two cylinder was cracked between the two spark plug portholes.

Operator's Account

The owner/operator of the aircraft reported that cracked cylinders are typical on these engines, usually due to the pilot overboosting the engine on takeoff. The owner stated that the pilot involved in this accident had cracked a cylinder on the accident aircraft on five previous occasions, as well as on other aircraft. The owner further stated that he trains all his pilots in emergency procedures.

Pilot's Response

The pilot of the aircraft did not respond to requests for the accident report and no longer works for the operator.

Investigation Status

No other information has been provided regarding the circumstances of the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X09572. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.