Casualties unknown

1988-08-29: Bellanca 7ECA (N5058K) — Freisen, Gustov H. — Dunsmuir, CA

Dunsmuir, CA, US

On August 29, 1988, a Bellanca 7ECA (registration N5058K) operated by Freisen, Gustov H. was involved in an aviation accident near Dunsmuir, CA. 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

An airplane collided with terrain after the pilot initiated a forced landing when the aircraft could not outclimb a box canyon. Density altitude was calculated as 7800 ft. No mechanical failures were reported.

Sequence of Events

Shortly after takeoff, the airplane gained just enough altitude to clear trees at the departure end of the runway. The pilot then turned the aircraft up a valley in an attempt to gain additional altitude. The airplane was climbing at 150 feet per minute, but the valley gradually narrowed into a box canyon. The aircraft had not reached a sufficient altitude to clear the surrounding terrain.

Recognizing the impending collision, the pilot initiated a forced landing. During the maneuver, the airplane collided with the terrain.

Environmental Conditions

The density altitude at the time of the accident was calculated to be 7,800 feet. No information was provided regarding wind, visibility, or other weather elements.

Aircraft Information

The pilot reported that there were no mechanical failures or malfunctions with the airplane at the time of the accident. The specific make, model, or registration of the aircraft was not disclosed in the source.

Conclusion

The investigation did not assign a probable cause in the source material. The accident involved a loss of terrain clearance during climb in a confined valley under high-density-altitude conditions.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X26612. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.