Casualties unknown

Wasp Nest Obstructs Fuel Vent After Power Loss and Emergency Landing (N7566M)

Mountain City, TN, US

On August 27, 1999, a Cessna 175 (registration N7566M) was involved in an aviation accident near Mountain City, TN. Investigators recorded the probable cause as: A blocked fuel system vent that resulted in fuel starvation and the complete loss of engine power. 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 loss of engine power shortly after takeoff, leading to an emergency landing in a corn field. Post-accident examination discovered a wasp nest in the fuel system vent.

Incident Description

A pilot completed a normal preflight inspection of the airplane before rolling it out of the hangar. The engine run-up was normal, and the subsequent takeoff and initial climb were also without issue. Shortly after liftoff, however, the pilot experienced a loss of engine power. The pilot immediately selected a corn field adjacent to the departure end of the runway for an emergency landing. The airplane touched down in the field, where it struck a fence and came to rest inverted. The pilot reported no other anomalies during the flight.

Investigation Findings

Post-accident examination of the airplane and engine assembly did not reveal any component failure or malfunction. A thorough inspection of the fuel system, however, identified a wasp nest obstructing the fuel system vent. The presence of the nest was noted. Beyond this finding, no other defects were discovered.

Frequently asked questions

What happened in the 27 Aug 1999 Cessna 175 accident near Mountain City, TN?

A pilot experienced a loss of engine power shortly after takeoff, leading to an emergency landing in a corn field. Post-accident examination discovered a wasp nest in the fuel system vent.

What aircraft was involved and where did it happen?

The accident on 27 Aug 1999 involved a Cessna 175, registration N7566M, at Mountain City, TN.

What was the probable cause of the accident?

A blocked fuel system vent that resulted in fuel starvation and the complete loss of engine power.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X19421. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.