3 fatalities

1996-01-31: Beechcraft 90 King Air (N300SP) — Flagstaff Medical Center — Flagstaff, United States of America

Flagstaff, United States of AmericaLanding (descent or approach)

On January 31, 1996, a Beechcraft 90 King Air (registration N300SP) operated by Flagstaff Medical Center was involved in an aviation accident near Flagstaff, United States of America during landing or approach. 3 people were killed. Investigators recorded the probable cause as: Failure of the pilot to follow prescribed IFR procedures and his failure to maintain control of the aircraft. Factors relating to the accident were: the adverse weather conditions with icing and turbulence. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781207300Data APIEditorial standards

A flight with a pilot and two nurses diverted to address a gear unsafe light. After manual extension, the pilot returned under IFR but deviated from the approach, crashing on Humphreys Peak at 10,500 feet amid adverse weather.

Incident Overview

A pilot and two nurses departed under Instrument Flight Rules (IFR) to transport a patient from another location. During initial climb, the pilot observed a gear unsafe light and requested clearance to an area of Visual Flight Rules (VFR) conditions to address the issue. The gear was subsequently manually extended with safe gear indications.

Return Flight and Communication

The flight department requested that the pilot return to base. The pilot obtained an IFR clearance to return for an Instrument Landing System (ILS) approach. After handoff to the tower, he was requested to report the final approach fix inbound after an eastbound procedure turn. This was the last communication from the pilot.

Accident Details

The aircraft crashed on the southeast side of Humphreys Peak at an elevation of about 10,500 feet and about 10 miles west of the final approach course. Wreckage was scattered along a heading of 230 degrees. Evidence indicated the airplane was in a steep descent when it crashed.

Radar and Weather Conditions

Radar data revealed an outbound track west of the published course and no procedure turn. The weather was Instrument Meteorological Conditions (IMC) with light snow and rain. Moderate to severe turbulence was forecast and confirmed by other pilots. Winds at 10,000 feet were forecast to be 50 knots out of the southwest. Moderate turbulence and light rime ice had been reported along the ILS approach course before the accident time.

Probable cause

Failure of the pilot to follow prescribed IFR procedures and his failure to maintain control of the aircraft. Factors relating to the accident were: the adverse weather conditions with icing and turbulence.