The U.S. aircraft register, updated daily
Accidents · NTSB CHI84LA232 · Preliminary: the investigation is not finished

Bell 47G accident near Fairfax, Minnesota, June 13, 1984

On June 13, 1984 at about 1:25 pm local time, a Bell 47G (helicopter), registered N501H, was substantially damaged in an accident near Fairfax, Minnesota. 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

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
June 13, 1984 · about 1:25 pm local time
Place
Fairfax, Minnesota · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Bell 47G · all 47Gs on the register
Registration
N501H · no longer on the register · serial 3560
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 HELICOPTER PLT TURNED AT THE END OF A SPRAY RUN & THE ACFT COLLIDED WITH A POWER LINE. HE SAID THAT BECAUSE OF A QUARTERING TAILWIND, THE HELICOPTER WAS IN A NOSE HIGH ATTITUDE & THE TAIL ROTOR HIT A WIRE. THE PLT WAS ABLE TO MAKE AN AUTOROTATION AFTER THE HELICOPTER SPUN A FEW TURNS, BUT IT TOUCHED DOWN HARD ENOUGH TO RUPTURE FUEL LINES WHICH RESULTED IN A 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: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instructor: helicopter; instructor: instrument airplane; instrument: airplane; rotorcraft: helicopter
  • Flight time: 2,562 hours in all; 2,055 in this make and model; 60 in the last 90 days; 2,369 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 3,560 hours
  • Last inspection: 100-hour inspection, May 2, 1984; 55 hours since
  • Maximum gross weight: 2,950 lb
  • Seats: 3
  • Landing gear: fixed
  • Engine: Lycoming TVO-435-B1A (piston); 0 hours total
  • Fire on the ground

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 300° at 11 knots
  • Visibility: 15 statute miles
  • Sky: scat at 20,000 ft
  • Temperature: 63°F (17°C), dew point 55°F (13°C)
  • Altimeter: 30.00 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.