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Casualties unknown

Power Loss After Departure Leads to Investigation; Fuel and Filter Issues Found (N8333U)

Delaware, OH, US

On August 9, 1984, a Cessna 172F (registration N8333U) was involved in an aviation accident near Delaware, OH. 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 2026-07-04Data APIEditorial standards

A pilot experienced a power loss at about 300 feet after a second departure. Investigation revealed a mix of avgas and automobile fuel without STC, a dirty air filter, and no oil leaks or metal particles.

Sequence of Events

After being airborne for approximately 20 minutes, the pilot landed the aircraft, taxied to the end of the strip, and departed again. During the second departure, at about 300 feet above ground level, a power loss occurred.

Investigation Findings

Examination of the wreckage revealed three quarts of oil in the engine, with no apparent oil leaks. A combination of avgas and automobile fuel was found, without an appropriate Supplemental Type Certificate (STC). Additionally, the foam rubber air filter was excessively dirty.

Maintenance personnel found no metal particles in the engine oil screen, and the engine rotated freely. No further causes or contributing factors were specified in the investigation report.

Engine failure

Frequently asked questions

What happened in the 9 Aug 1984 Cessna 172F accident near Delaware, OH?

A pilot experienced a power loss at about 300 feet after a second departure. Investigation revealed a mix of avgas and automobile fuel without STC, a dirty air filter, and no oil leaks or metal particles.

What aircraft was involved and where did it happen?

The accident on 9 Aug 1984 involved a Cessna 172F, registration N8333U, at Delaware, OH.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X40635. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.