Casualties unknown

Partial Power Loss Leads to Emergency Landing and Fence Strike (N8910D)

Sauk City, WI, US

On August 8, 2002, a Piper PA22-150 (registration N8910D) was involved in an aviation accident near Sauk City, WI. Investigators recorded the probable cause as: A loss of engine power due to a seized exhaust valve. A related factor was the mowed hay field. 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 partial engine power loss in cruise, and after unsuccessful corrective attempts, made an emergency landing in a hay field. The aircraft struck a fence during rollout, sustaining substantial damage.

Incident Description

During cruise flight, the pilot reported a partial loss of engine power. In an effort to restore normal operation, the pilot applied carburetor heat, switched magnetos, and adjusted the mixture, but these actions did not resolve the issue.

Emergency Landing

Faced with continued power loss, the pilot decided to perform an emergency landing in a newly mowed hay field. The field provided at least 1,500 feet of available landing distance. However, during the landing rollout, the airplane struck a fence located at the edge of the field, resulting in substantial damage to the aircraft.

Engine Examination

Following the incident, an FAA inspector examined the engine. The inspection revealed a lack of compression and a stuck exhaust valve on the forward/right cylinder.

Frequently asked questions

What happened in the 8 Aug 2002 Piper PA22-150 accident near Sauk City, WI?

A pilot experienced partial engine power loss in cruise, and after unsuccessful corrective attempts, made an emergency landing in a hay field. The aircraft struck a fence during rollout, sustaining substantial damage.

What aircraft was involved and where did it happen?

The accident on 8 Aug 2002 involved a Piper PA22-150, registration N8910D, at Sauk City, WI.

What was the probable cause of the accident?

A loss of engine power due to a seized exhaust valve. A related factor was the mowed hay field.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020816X01421. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.