Casualties unknown

1995-11-24: Cessna 310J (N1147M) — Englewood, CO

Englewood, CO, US

On November 24, 1995, a Cessna 310J (registration N1147M) was involved in an aviation accident near Englewood, CO. Investigators recorded the probable cause as: failure of the pilot to feather the propeller on the inoperative engine in accordance with the emergency procedure. 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

During final approach, the left engine lost power. The pilot raised gear and flaps but did not feather the propeller. A wheels-up landing occurred in a field about 300 feet short of the runway.

Accident Details

After completing a cross-country flight, the aircraft turned onto final approach. As the airplane aligned with the runway, the left engine ceased producing power. The pilot immediately applied full power to the right engine and retracted the landing gear and flaps, but the left engine propeller was not feathered. The descent continued, and the airplane made a wheels-up landing in a field approximately 300 feet short of the runway.

Pilot Actions

The pilot responded to the power loss by increasing throttle on the operating engine and cleaning up the aircraft configuration. However, the propeller of the failed engine remained windmilling, which increased aerodynamic drag.

Performance Evaluation

A performance analysis determined that with one engine inoperative and the propeller windmilling, the aircraft could not sustain level flight. In contrast, if the propeller had been feathered and the landing gear and flaps retracted, the airplane would have been capable of a 283 feet per minute climb.

Examination Findings

Inspection of the left engine revealed abnormalities in the ignition system, including a shorted tower on one magneto and separation of the shielding at multiple points. Despite these findings, investigators were unable to determine a specific reason for the total loss of power in the left engine.

Fuel Status

After the incident, approximately 15 gallons of fuel remained in each main tank. The auxiliary fuel tanks were empty.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001207X04853. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.