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Accidents · NTSB CHI07LA162 · Final report

Aero Commander S2R accident near Watford City, North Dakota, June 5, 2007

On June 5, 2007 at about 3:52 pm local time, a Aero Commander S2R, registered N8835Q, was destroyed in an accident near Watford City, North Dakota (Watford City Muni airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The agricultural pilot's failure to maintain clearance from the terrain while maneuvering to avoid power lines. The power lines were a contributing factor in the accident.

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

What the record shows

Date
June 5, 2007 · about 3:52 pm local time
Place
Watford City, North Dakota · Watford City Muni
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Aero Commander S2R · all S2Rs on the register
Registration
N8835Q · registry record · serial 1535R
Damage
Destroyed
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

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

The operator reported that the airplane was loaded with approximately 300 gallons of liquid insecticide and estimated the takeoff weight of the airplane was between 7,200 and 7,300 lbs. A few minutes prior to the accident, the pilot radioed that he was going to divert to another field because there were individuals near the field he was about to spray. No additional radio transmissions were received from the accident pilot. A witness, who was working an oil field west of the accident site, stated that the airplane appeared to be making normal spray runs before he lost sight of the airplane behind a hill. He noticed smoke about four to five minutes later and contacted local law enforcement to report the accident. The main wreckage was found immediately adjacent to an unimproved, east-west access road that ran between two agricultural fields. Power lines were located about 50 feet south of the main wreckage that ran parallel to the access road. A ground scar began approximately 21 feet north of the power lines and led up to the main wreckage. Portions of the left wingtip's navigational lens were found at the initial point of impact. The main wreckage remained upright and was facing south. A fan-shaped debris field, about 80 feet long, continued away from the main wreckage on a northwest heading. It appeared that the pilot was most likely maneuvering to avoid the power lines when ground collision occurred. A majority of the aircraft was destroyed by the post-impact ground fire. The on-scene investigation did not reveal any pre-impact anomalies that would have prevented the normal operation of the airframe, engine, or its associated systems.

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: single-engine land
  • Flight time: 744 hours in all; 17 in this make and model; 21 in the last 90 days; 17 in the last 30 days; 681 as pilot in command
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: sngl
  • Injury: fatal

The aircraft

  • Airframe total time: 6,598.4 hours
  • Last inspection: annual inspection, May 1, 2007
  • Maximum gross weight: 2,900 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Pratt & Whitney R-1340-S3H1-G (piston); 0 hours total
  • Fire on the ground
  • Operator: Taylor Ag Services, Inc.

The flight

  • Departed from: S25 Watford City ND
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 180° at 4 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 70°F (21°C), dew point 54°F (12°C)
  • Altimeter: 29.76 inHg
  • Observation at 3:52 pm from KISN, 14 miles away

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.