Casualties unknown

Engine Roughness and Fuel Exhaustion During Approach (N6703E)

Detroit Lakes, MN, US

On September 2, 1998, a Cessna 172N (registration N6703E) was involved in an aviation accident near Detroit Lakes, MN. Investigators recorded the probable cause as: An inadequate preflight inspection by the pilot which resulted in fuel exhaustion and subsequent loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

During approach, a pilot experienced engine roughness after setting mixture to full rich. Carburetor heat did not resolve it. Switching fuel tanks briefly restored power, then engine quit. Investigation found no usable fuel; pilot relied on fuel gauges instead of visual check.

Pre-Landing Checklist and Engine Roughness

As the airplane neared its destination, the pilot performed a pre-landing checklist. When he placed the mixture control to full 'RICH', the engine began to run rough. The pilot reported that applying carburetor heat did not eliminate the roughness.

Fuel Tank Selection and Engine Failure

The pilot then positioned the fuel selector to the 'RIGHT' fuel tank. The engine resumed normal operation for a short time before quitting completely.

Post-Accident Examination

On-scene examination revealed no usable fuel in the airplane's fuel tanks.

Pilot's Statement on Fueling

The pilot stated that he had instructed another pilot to fill the fuel tanks to the filler neck the day before the accident flight. During his preflight inspection, he did not visually check the fuel level but instead relied on the fuel tank gauges to confirm that the tanks were 'FULL'.

All Cessna 172 accidents →

Frequently asked questions

What happened in the 2 Sept 1998 Cessna 172N accident near Detroit Lakes, MN?

During approach, a pilot experienced engine roughness after setting mixture to full rich. Carburetor heat did not resolve it. Switching fuel tanks briefly restored power, then engine quit. Investigation found no usable fuel; pilot relied on fuel gauges instead of visual check.

What aircraft was involved and where did it happen?

The accident on 2 Sept 1998 involved a Cessna 172N, registration N6703E, at Detroit Lakes, MN.

What was the probable cause of the accident?

An inadequate preflight inspection by the pilot which resulted in fuel exhaustion and subsequent loss of engine power.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X11012. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.