Casualties unknown

Airplane Collides with Terrain During Left Turn in IMC (N5369L)

Wrightwood, CA, US

On December 31, 1988, a Piper PA-28-180 (registration N5369L) operated by Clevenger, John B. was involved in an aviation accident near Wrightwood, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 4 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

During a cross-country flight, the airplane entered instrument meteorological conditions, flew toward a mountain range, and entered a valley with rising terrain. The pilot initiated a left turn after seeing terrain, but the airplane collided with terrain. No mechanical failures were found.

Accident Overview

A cross-country flight encountered instrument meteorological conditions (IMC). The pilot flew the airplane toward a mountain range and entered a valley where terrain was rising. According to the passenger, while still in IMC, the pilot sighted the terrain immediately before the accident and began a left turn. The airplane collided with terrain during that maneuver.

Flight Details

The airplane was on a cross-country flight when it encountered IMC. The passenger reported that the pilot continued flight toward a mountain range and then entered a valley with rising terrain. No mechanical failures or malfunctions were identified during the post-crash investigation.

Accident Sequence

While in IMC and just prior to the accident, the pilot saw the terrain and initiated a left turn. The airplane struck the terrain during the turning maneuver. The passenger was the source of this account.

Investigation Findings

Post-crash examination revealed no mechanical failures or malfunctions that could have contributed to the accident. The investigation did not specify a probable cause.

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Frequently asked questions

What happened in the 31 Dec 1988 Piper PA-28-180 accident near Wrightwood, CA?

During a cross-country flight, the airplane entered instrument meteorological conditions, flew toward a mountain range, and entered a valley with rising terrain. The pilot initiated a left turn after seeing terrain, but the airplane collided with terrain. No mechanical failures were found.

What aircraft was involved and where did it happen?

The accident on 31 Dec 1988 involved a Piper PA-28-180, registration N5369L, operated by Clevenger, John B., at Wrightwood, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X27437. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.