Casualties unknown

1997-06-23: Air Tractor AT-402B (N6128W) — Ridgely, TN

Ridgely, TN, US

On June 23, 1997, an Air Tractor AT-402B (registration N6128W) was involved in an aviation accident near Ridgely, TN. Investigators recorded the probable cause as: The pilot's inadequate preflight planning in that he failed to account for the high temperature and high density altitude, which resulted in an aerodynamic stall and loss of control. Factors were the tall crops and the ditch. 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 pilot reported that after multiple takeoffs from a grass strip, the airplane stalled and collided with a corn field after he attempted to dump a load of ammonium nitrate, with left landing gear failing.

Accident Details

According to the pilot, the accident occurred after takeoff from a grass strip. He stated that it was the fourteenth or fifteenth takeoff that day, with the same load and fuel quantity as previous flights. After lift-off, the airplane did not accelerate as usual and began to sink. The pilot then attempted to dump the 3100 pounds of ammonium nitrate being carried. Once the doors opened, the airplane stalled and collided with the ground, which was a corn field with plants approximately six feet tall.

Pilot's Account

The pilot reported that before he could reach the power lever, the airplane started turning slightly to the right, and then the left landing gear failed. No mechanical problems were reported by the pilot. He believed that light and variable wind, combined with high temperature, contributed to the failure of the airplane to climb.

Ambient Conditions

The ambient conditions at the time of the accident included high temperature, high density altitude, and high gross weight of the airplane.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08062. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.