Casualties unknown

Porpoising Leads to Uncontrolled Turn and Hard Landing (N3969M)

Lake Charles, LA, US

On June 29, 1988, a Piper PA-32-300 (registration N3969M) operated by Michael W. Guidry was involved in an aviation accident near Lake Charles, LA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 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 a landing attempt, a porpoising oscillation intensified despite pilot inputs, resulting in an uncontrolled shallow left turn and a left-wing-first touchdown.

Incident Details

During taxi between flights, the pilot noticed the nose was very high but attributed it to the strut failing to compress, rather than a more serious issue.

Sequence of Events

On the subsequent landing, after touching down on the main wheels, the airplane began to porpoise. Despite the pilot's corrective inputs, the amplitude of the porpoising increased. The pilot then applied power for a go-around. However, the airplane initiated a shallow left turn that the pilot could not counteract using rudder or aileron controls.

Outcome

The airplane traveled approximately 100 to 200 feet before making contact with the ground, with the left wing striking first.

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Frequently asked questions

What happened in the 29 Jun 1988 Piper PA-32-300 accident near Lake Charles, LA?

During a landing attempt, a porpoising oscillation intensified despite pilot inputs, resulting in an uncontrolled shallow left turn and a left-wing-first touchdown.

What aircraft was involved and where did it happen?

The accident on 29 Jun 1988 involved a Piper PA-32-300, registration N3969M, operated by Michael W. Guidry, at Lake Charles, LA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X25964. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.