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Accidents · NTSB CHI98LA305 · Final report

Air Tractor AT-301 accident near Edgeley, North Dakota, August 9, 1998

On August 9, 1998, a Air Tractor AT-301, registered N4443S, was substantially damaged in an accident near Edgeley, North Dakota (Edgeley Municipal airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain flying airspeed resulting in a stall/mush condition during the initial climb. Contributing factors were the high density altitude, high aircraft weight, and pilot's delayed jettison of the load, as well as the roadway and crop.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
August 9, 1998
Place
Edgeley, North Dakota · Edgeley Municipal · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Air Tractor AT-301
Registration
N4443S · no longer on the register · serial 103
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

The agricultural aircraft's certificated gross weight was 5,000 pounds. The pilot reported departing at 5,895 pounds. The temperature was 84 degrees F. with light and variable winds, and the pilot reported that the crash was a result of high density altitude. The pilot departed from a 2,485-foot asphalt runway to the west. He stated that 'Upon reaching the end of the runway, I proceeded to pull up. The a/c [aircraft] went into a 3pt attitude. I began to dump my load. The a/c flew in an uncontrolled manner for 100 yds then the right wing struck a gravel road sending me sideways into a cornfield for 300 ft then the a/c came to a stop.'

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 2,800 hours in all; 1,400 in this make and model; 500 in the last 90 days; 150 in the last 30 days; 2,600 as pilot in command; 114 on instruments
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: ctr

The aircraft

  • Last inspection: annual inspection
  • Maximum gross weight: 5,000 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: P&W R-1340 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 26, 2,485 ft by 35 ft

Weather at the time

  • Light: dawn
  • Wind: from 180° at 8 knots
  • Visibility: 15 statute miles
  • Sky: broken clouds at 25,000 ft; clear
  • Temperature: 82°F (28°C), dew point 61°F (16°C)
  • Altimeter: 29.00 inHg

Injuries

FatalSeriousMinorNone
Crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.