Casualties unknown

VFR Flight Encounters Deteriorating Weather Over Mountainous Terrain (N8168N)

Tehachapi, CA, US

On April 18, 2007, a Piper PA-28-140 (registration N8168N) was involved in an aviation accident near Tehachapi, CA. Investigators recorded the probable cause as: The pilot's VFR flight into IMC and his ensuing failure to maintain terrain clearance. Contributing factors were the cloudy weather conditions and the mountainous terrain. 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 2026-07-04Data APIEditorial standards

During a VFR cross-country flight, an airplane encountered worsening weather over mountainous terrain. Radar data showed a constant course and altitude before disappearing near a remote mountain site.

Circumstances of the Flight

A VFR cross-country flight over mountainous terrain encountered deteriorating weather conditions. According to weather satellite imagery, clouds were present in the vicinity of the accident site, and mountain wave activity was noted just south of the location. A surface weather chart indicated that a cold front was moving through the area at the time.

Environmental Conditions

A resident living near the accident site reported that on the morning of the accident, the weather was poor, and the top of the mountain was not visible. The terrain at the impact site was described as rugged, mountainous, and heavily forested.

Radar and Flight Path

Radar data from the final three minutes of recorded flight showed that the airplane maintained a constant altitude and course. The last radar return was recorded approximately one nautical mile short of the impact site. No witnesses to the accident were identified.

Post-Accident Inspection

Post-accident inspections of the airplane found no evidence of any mechanical failure or malfunction.

Frequently asked questions

What happened in the 18 Apr 2007 Piper PA-28-140 accident near Tehachapi, CA?

During a VFR cross-country flight, an airplane encountered worsening weather over mountainous terrain. Radar data showed a constant course and altitude before disappearing near a remote mountain site.

What aircraft was involved and where did it happen?

The accident on 18 Apr 2007 involved a Piper PA-28-140, registration N8168N, at Tehachapi, CA.

What was the probable cause of the accident?

The pilot's VFR flight into IMC and his ensuing failure to maintain terrain clearance. Contributing factors were the cloudy weather conditions and the mountainous terrain.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070501X00490. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.