Casualties unknown

Nose-over after hard landing and overrun at uncharted dirt airstrip (N64033)

Island Mountain, CA, US

On August 2, 1985, a Cessna 172 M (registration N64033) operated by West Valley Flying Club was involved in an aviation accident near Island Mountain, CA. Investigators recorded the probable cause as: The pilot's improper landing on an uncharted dirt airstrip, which resulted in a hard touchdown, multiple bounces, and an overrun into a ditch. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-20Data APIEditorial standards

Aircraft touched down hard on a short, unchartd dirt strip, bounced multiple times, and overran the runway into a ditch. The pilot reported no prior issues with the field despite its challenging characteristics.

What happened

The aircraft arrived at an uncharted dirt airstrip measuring approximately 2,000 feet in length. Upon reaching the field, the pilot configured the airplane for landing and initiated the final approach. The touchdown was hard, causing the aircraft to bounce three times before settling back onto the surface. Following this instability, the aircraft continued forward, floating beyond the designated runway end. It eventually overran the paved or graded area, entered a ditch, and came to rest in a nose-over attitude.

The investigation

Post-accident examination confirmed the sequence of events described by the pilot. The aircraft sustained significant damage consistent with a hard landing followed by an overrun into terrain not designed for aircraft operations. No mechanical failures were identified that would have contributed to the loss of control or the inability to stop within the available distance.

Findings

The primary factors contributing to this accident were the pilot's decision to attempt a landing at an uncharted facility with limited visibility and potential hazards, combined with a hard touchdown that resulted in multiple bounces. The subsequent overrun was exacerbated by the lack of a clear runway end safety area. The pilot noted that he had successfully landed at this airstrip the previous year without difficulty, which may have influenced his risk assessment regarding the field's suitability for the current flight conditions.

Probable cause

The pilot's improper landing on an uncharted dirt airstrip, which resulted in a hard touchdown, multiple bounces, and an overrun into a ditch.

Frequently asked questions

What happened in the 2 Aug 1985 Cessna 172 M accident near Island Mountain, CA?

Aircraft touched down hard on a short, unchartd dirt strip, bounced multiple times, and overran the runway into a ditch. The pilot reported no prior issues with the field despite its challenging characteristics.

What aircraft was involved and where did it happen?

The accident on 2 Aug 1985 involved a Cessna 172 M, registration N64033, operated by West Valley Flying Club, at Island Mountain, CA.

What was the probable cause of the accident?

The pilot's improper landing on an uncharted dirt airstrip, which resulted in a hard touchdown, multiple bounces, and an overrun into a ditch.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X37519. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.