Casualties unknown

Biplane Accident During Aerial Application Flight (N617Y)

St. Joseph, LA, US

On March 28, 1998, a Grumman G-164 (registration N617Y) was involved in an aviation accident near St. Joseph, LA. Investigators recorded the probable cause as: The pilot's failure to maintain clearance from the trees. A factor was the lack of suitable terrain for the ensuing forced landing. 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

After three uneventful flights, a biplane's cockpit side windows were removed. On the fourth flight's first pass, performance degraded; during a turn, it settled into trees. The pilot attempted to dump herbicide and land, but impacted a road embankment, nosed over, inverted, and burned. Postcrash fire destroyed most of the aircraft.

Flight History

The pilot had completed three uneventful aerial application flights before removing the biplane's cockpit side windows. The fourth flight began without incident, but during the first pass, the pilot noticed the plane did not perform as it had previously.

Accident Sequence

While turning the airplane to begin the second pass, the aircraft settled into the trees bordering the field being sprayed. While in the trees, the pilot advanced the propeller and throttle controls and made an unsuccessful attempt to dump his load of herbicide. Upon reaching the edge of the trees, the pilot nosed the aircraft over to land in a small field before hitting a wire across the road. As he flared to land, the airplane impacted the road embankment. Subsequently, the airplane nosed over, came to a stop in the inverted position, and began to burn.

Postcrash Fire

The postcrash fire consumed the fuselage, empennage, and the upper and lower right wings.

Frequently asked questions

What happened in the 28 Mar 1998 Grumman G-164 accident near St. Joseph, LA?

After three uneventful flights, a biplane's cockpit side windows were removed. On the fourth flight's first pass, performance degraded; during a turn, it settled into trees. The pilot attempted to dump herbicide and land, but impacted a road embankment, nosed over, inverted, and burned. Postcrash fire destroyed most…

What aircraft was involved and where did it happen?

The accident on 28 Mar 1998 involved a Grumman G-164, registration N617Y, at St. Joseph, LA.

What was the probable cause of the accident?

The pilot's failure to maintain clearance from the trees. A factor was the lack of suitable terrain for the ensuing forced landing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X09679. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.