Casualties unknown

1991-03-27: Beech 58P (N27L) — Paul D. Dempsey — Vail, AZ

Vail, AZ, US

On March 27, 1991, a Beech 58P (registration N27L) operated by Paul D. Dempsey was involved in an aviation accident near Vail, AZ. Investigators recorded the probable cause as: THE FAILURE OF BOTH PILOTS TO MAINTAIN CONTROL OF THE AIRPLANE. 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

Radar data and witness reports describe an airplane spinning clockwise after maneuvering between 5,400 and 7,300 feet MSL. Landing gear and flaps were found extended. The owner-pilot had hired an instructor with 1,000 hours in type.

Incident Overview

An owner-pilot purchased an airplane in Minnesota and hired an instructor pilot, who had 1,000 hours of experience in the same make and model, to fly the aircraft back to Arizona. The instructor was also to fly daily with the owner-pilot until he became qualified and proficient in the airplane.

Flight and Radar Data

After departure, radar tracking data showed the airplane proceeding to the east practice area. During the flight, the airplane maneuvered between 5,400 and 7,300 feet MSL. The terrain elevation in the area is approximately 3,000 feet MSL. Radar data was recorded for 47 minutes. At a point where the ground speed was indicated as 72 knots, the airplane began a rapid descent. It was lost from radar at an altitude of 4,100 feet MSL.

Witness Observations

Witnesses reported seeing the airplane spinning clockwise in the practice area.

Post-Impact Condition

The landing gear and flaps were found in the extended (down) position.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X16619. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.