Casualties unknown

1998-06-09: Cessna 185 (N9855X) — Hudson Air Service, Inc. — Chickaloon, AK

Chickaloon, AK, US

On June 9, 1998, a Cessna 185 (registration N9855X) operated by Hudson Air Service, Inc. was involved in an aviation accident near Chickaloon, AK. Investigators recorded the probable cause as: The pilot's inadvertent activation of the fuel boost pump selector switch during final approach, which resulted in an overly rich mixture and subsequent loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 2 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A pilot experienced an engine power loss on short final while landing on the Matanuska Glacier, resulting in a hard landing short of the intended touchdown point and substantial fuselage damage.

Incident Overview

A pilot was conducting a landing at an elevation of 6,900 feet mean sea level on the Matanuska Glacier. During the approach, while on short final, the engine lost power. The pilot attempted to restore engine power but was unsuccessful. The airplane subsequently landed hard, coming to rest approximately 500 feet short of the intended touchdown point.

Damage and Post-Landing Discovery

The airplane's fuselage sustained substantial damage from the hard landing. After the aircraft came to a stop and while securing the cockpit controls, the pilot discovered that the fuel boost pump switch was positioned in the 'high boost' setting.

Relevant Aircraft Information

The airplane was a Cessna model. According to the Cessna Pilot's Operating Handbook, if the engine-driven fuel pump switch is placed in the ON position, a fuel/air ratio considerably richer than best power is produced unless the mixture is leaned. This condition can affect engine performance.

Investigation Status

The incident is based on the pilot's report. No further details about the aircraft, registration, date, or individuals involved were provided in the source material.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X10206. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.