Casualties unknown

Aircraft Nosed Over After Engine Failure During Takeoff (N21249)

Cuba, MO, US

On July 6, 1984, a Cessna 172 (registration N21249) was involved in an aviation accident near Cuba, MO. Investigators recorded the probable cause as: The pilot's failure to properly prepare the aircraft for flight after prolonged storage, resulting in water contamination of the fuel system and subsequent engine failure. 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 2026-06-20Data APIEditorial standards

An aircraft parked for six months nosed over after takeoff due to water contamination in the fuel system, as the pilot failed to obtain a ferry permit or conduct proper pre-flight checks.

What happened

The aircraft experienced a forced landing immediately following takeoff, resulting in a nose-over incident. According to witness accounts, the aircraft had been stored outdoors and remained unflying for a period of six months prior to this event. The pilot did not perform any maintenance or inspection procedures before flight, choosing only to add 10 gallons of fuel to the tanks.

During the initial climb, the engine ceased operation when the aircraft was approximately 100 feet above ground level. A Federal Aviation Administration inspector later examined the wreckage and discovered significant water contamination within both the fuel tanks and the associated fuel system components. Additionally, it was determined that the aircraft was not current on its required annual inspection at the time of the accident.

The investigation

The investigation focused on the mechanical state of the aircraft and the actions taken by the pilot prior to flight. Key findings included:

  • Water contamination found in the fuel tanks and system
  • Aircraft was out of date on its annual inspection
  • Pilot did not obtain a required ferry permit for the unairworthy aircraft
  • Lack of pre-flight maintenance despite six months of outdoor storage

Findings

The primary factors contributing to this accident were water contamination in the fuel system and inadequate pre-flight procedures. The pilot's failure to inspect the aircraft after prolonged outdoor storage, combined with the absence of a ferry permit for an unairworthy plane, directly led to the engine failure and subsequent crash.

Probable cause

The pilot's failure to properly prepare the aircraft for flight after prolonged storage, resulting in water contamination of the fuel system and subsequent engine failure.

All Cessna 172 accidents →

Frequently asked questions

What happened in the 6 Jul 1984 Cessna 172 accident near Cuba, MO?

An aircraft parked for six months nosed over after takeoff due to water contamination in the fuel system, as the pilot failed to obtain a ferry permit or conduct proper pre-flight checks.

What aircraft was involved and where did it happen?

The accident on 6 Jul 1984 involved a Cessna 172, registration N21249, at Cuba, MO.

What was the probable cause of the accident?

The pilot's failure to properly prepare the aircraft for flight after prolonged storage, resulting in water contamination of the fuel system and subsequent engine failure.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X40425. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.