Casualties unknown

1984-08-13: Piper PA-25-150 (N6431Z) — New Rockford, ND

New Rockford, ND, US

On August 13, 1984, a Piper PA-25-150 (registration N6431Z) was involved in an aviation accident near New Rockford, ND. Investigators recorded the probable cause as: The pilot's inadequate clearance from sunflowers during the spray run, which resulted in the aircraft striking vegetation, losing speed and power, and being unable to recover, leading to a forced landing in the 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 1781061362Data APIEditorial standards

A crop duster pilot lost control while spraying near sunflowers, resulting in a forced landing in the field with substantial damage to the aircraft.

What happened

The pilot was conducting an agricultural spray run when the aircraft approached a field of sunflowers. The operator noted that the flight path brought the plane too close to the crops. Upon initial contact with the sunflowers, the landing gear struck the vegetation. This impact caused immediate drag, which slowed the aircraft significantly.

With insufficient airspeed and power remaining to climb out or maintain level flight, the pilot was unable to recover. The aircraft continued forward and settled into the sunflower field approximately 50 yards from the point of initial contact. The landing occurred without further incident regarding occupant safety, but the impact with the ground and crops resulted in substantial damage.

The investigation

Post-accident examination revealed significant structural compromise to multiple airframe components. The landing gear sustained heavy deformation and damage from striking the dense crop canopy. The wings also showed signs of impact stress. Additionally, the propeller was damaged, indicating it likely struck vegetation or debris during the uncontrolled descent. The fuselage suffered substantial damage consistent with a hard landing in uneven terrain.

Findings

The primary factor leading to this accident was the pilot's decision to fly too low and close to obstacles (the sunflowers) during the spray run. This proximity resulted in the aircraft losing critical energy. The loss of speed and power prevented any possibility of escape, forcing a landing in an unsuitable area. The substantial damage to the airframe confirms the severity of the impact.

Safety message

Pilots conducting agricultural operations must maintain safe clearance distances from obstacles and crops during spray runs. Failure to monitor altitude relative to terrain features can lead to immediate loss of control and catastrophic structural failure.

Probable cause

The pilot's inadequate clearance from sunflowers during the spray run, which resulted in the aircraft striking vegetation, losing speed and power, and being unable to recover, leading to a forced landing in the field.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X40681. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.