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Accidents · NTSB FTW91DPG12 · Final report

Bell 47-G3B1 accident near Colt, Arkansas, June 1, 1991

On June 1, 1991 at about 1:00 am local time, a Bell 47-G3B1 (helicopter), registered N31052, was destroyed in an accident near Colt, Arkansas. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON. A FACTOR WAS THE UNSUITABLE TERRAIN.

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

What the record shows

Date
June 1, 1991 · about 1:00 am local time
Place
Colt, Arkansas · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Bell 47-G3B1 · all 47-G3B1s on the register
Registration
N31052 · registry record · serial 2934
Damage
Destroyed
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

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

DURING A DAY AGRICULTURE OPERATION, THE PILOT EXPERIENCED A PARTIAL LOSS OF ENGINE POWER IN A DESCENDING TURN. THE RIGHT SKID SHEARED WHEN IT STRUCK A BERM AND THE TAIL ROTOR CABLE SEPARATED. THE PILOT LOST CONTROL AND THE HELICOPTER ROLLED ON ITS RIGHT SIDE. THE HELICOPTER WAS CONSUMED BY A POST CRASH FIRE.

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; instrument: helicopter; rotorcraft: helicopter
  • Flight time: 4,000 hours in all; 1,500 in this make and model; 200 in the last 90 days; 60 in the last 30 days
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Last inspection: annual inspection, April 1, 1991; 100 hours since
  • Maximum gross weight: 2,850 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Lycoming TVO-435-D1B (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: NONE Colt AR
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 15 statute miles
  • Sky: clear
  • Temperature: 79°F (26°C), dew point 72°F (22°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.