Casualties unknown

Pilot Contacted Weather Service, Flew Low in Fog Before Accident (N4527F)

Dinsmore, CA, US

On May 24, 1989, a Piper PA-28-181 (registration N4527F) was involved in an aviation accident near Dinsmore, CA. Investigators recorded the probable cause as: THE PILOT'S INTENTIONAL VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS, AND HIS FAILURE TO MAINTAIN ADEQUATE TERRAIN CLEARANCE. 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

A pilot on a round trip from Lakeport to Eureka contacted weather service for current conditions, later flew very low in mountainous terrain with low clouds, fog, and light rain. Wreckage was found in rising terrain.

Flight Details

The pilot contacted the Flight Service Station (FSS) earlier in the day at 0640 and requested only the current weather at Eureka for a round-trip flight from Lakeport to Eureka and return. The flight departed Eureka at approximately 1415 for the return leg.

Witness Observations

Witnesses observed the airplane flying very low in mountainous terrain. One witness reported that "He came up out of the fog at close to treetop level."

Weather Conditions

The weather at the time was described as low clouds, fog, and light rain.

Wreckage Location

The wreckage was located in rising mountainous terrain at an elevation of 4,900 feet.

Pilot's Typical Routing

The pilot typically flew near Highway 101, except during inclement weather when he would divert to the east and fly via Highway 36. He had a motor vehicle parked at Ruth Airport for use in instances of very poor weather.

Scheduled Commitments

The pilot had another flight scheduled for 1500 at Lakeport and was also scheduled to teach school at 1800.

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Frequently asked questions

What happened in the 24 May 1989 Piper PA-28-181 accident near Dinsmore, CA?

A pilot on a round trip from Lakeport to Eureka contacted weather service for current conditions, later flew very low in mountainous terrain with low clouds, fog, and light rain. Wreckage was found in rising terrain.

What aircraft was involved and where did it happen?

The accident on 24 May 1989 involved a Piper PA-28-181, registration N4527F, at Dinsmore, CA.

What was the probable cause of the accident?

THE PILOT'S INTENTIONAL VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS, AND HIS FAILURE TO MAINTAIN ADEQUATE TERRAIN CLEARANCE. CONTRIBUTING FACTORS TO THE ACCIDENT WERE: THE PILOT'S FAILURE TO OBTAIN WEATHER INFORMATION, HIS OVERCONFIDENCE IN HIS ABILITY TO FLY IN MOUNTAINOUS TERRAIN IN THE EXISTING WEATHER…

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X28338. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.