Casualties unknown

1991-11-01: North American NAVION (N8631H) — Swartz, Grant L. — Okeechobee, FL

Okeechobee, FL, US

On November 1, 1991, a North American NAVION (registration N8631H) operated by Swartz, Grant L. was involved in an aviation accident near Okeechobee, FL. Investigators recorded the probable cause as: OPERATION BY THE OWNER/PILOT-IN-COMMAND WITH KNOWN DEFICIENCIES IN EQUIPMENT AND FUEL STARVATION DUE TO A BLOCKED FUEL LINE. 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

After takeoff, the engine quit due to fuel exhaustion in the auxiliary tank. Switching to the main tank failed to restart the engine because a blocked fuel line prevented fuel flow. The pilot landed gear up in a field.

Accident Overview

A pilot experienced an engine failure shortly after takeoff when the aircraft's engine stopped due to fuel exhaustion in the auxiliary fuel tank. The pilot had positioned the fuel selector to the auxiliary tank before departure.

Pilot Actions

Upon the engine failure, the pilot moved the fuel selector to the main fuel tank position, which contained an adequate supply of fuel. However, the engine only started momentarily before quitting again.

Forced Landing

Unable to maintain flight, the pilot executed a forced landing with the landing gear retracted in an open field.

Post-Accident Examination

An FAA airworthiness inspector examined the aircraft and found that the rubber fuel line connecting the main fuel tank to the fuel selector was blocked by contaminants.

Additional Information

The pilot had previously operated the engine using automotive fuel without a supplemental type certificate (STC). The pilot was also aware before the accident that the engine would lose power when the fuel selector was positioned to the main tank.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X18487. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.