Aircraft accident near Humphreys Peak during instrument approach

3 fatalities • Flagstaff, United States of America • Landing (descent or approach)

An aircraft crashed into a mountain peak during an instrument approach following a mechanical issue with the landing gear.

What happened

A flight involving the pilot and two medical professionals was conducting an instrument flight rules (IFR) mission to transport a patient when a landing gear malfunction occurred. During the initial climb, the pilot noticed a gear unsafe indication. To resolve the issue, the pilot requested permission to enter visual flight rules (VFR) conditions. The landing gear was successfully extended manually, and the crew received safe indications.

Following the resolution of the mechanical issue, the flight department instructed the pilot to return to the departure base. The pilot received an IFR clearance for an ILS approach. After being handed off to the tower, the pilot was instructed to report the final approach fix (FAF) after completing an eastbound procedure turn. No further communication was received from the aircraft.

The aircraft crashed on the southeast side of Humphreys Peak at an elevation of approximately 10,500 feet, roughly 10 miles west of the intended final approach course. The wreckage was distributed along a 230-degree heading. Evidence indicated the plane was in a steep descent at the time of impact.

Findings

Radar analysis showed that the aircraft followed an outbound track to the west of the published course and did not perform the required procedure turn. At the time of the accident, the aircraft was operating in instrument meteorological conditions (IMC) characterized by light rain and snow. Meteorological reports from other pilots confirmed the presence of moderate to severe turbulence. Additionally, winds at 10,000 feet were forecast at 50 knots from the southwest, and previous reports along the ILS approach path noted moderate turbulence and light rime ice.

Probable cause

The aircraft deviated from the prescribed approach procedure and entered a steep descent while flying in turbulent instrument meteorological conditions.

Frequently asked questions

What happened in the 1996-01-31 Beechcraft 90 King Air accident near Flagstaff, United States of America?

An aircraft crashed into a mountain peak during an instrument approach following a mechanical issue with the landing gear.

Were there any fatalities in the 1996-01-31 Beechcraft 90 King Air accident?

The accident was fatal, resulting in 3 fatalities.

What aircraft was involved and where did it happen?

The accident on 1996-01-31 involved a Beechcraft 90 King Air, registration N300SP, operated by Flagstaff Medical Center, at Flagstaff, United States of America.

What was the probable cause of the accident?

The aircraft deviated from the prescribed approach procedure and entered a steep descent while flying in turbulent instrument meteorological conditions.

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