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Accidents · NTSB DEN87LA247 · Preliminary: the investigation is not finished

Bell 47G-3B1 accident near Grand Junction, Colorado, September 30, 1987

On September 30, 1987 at about 6:30 pm local time, a Bell 47G-3B1 (helicopter), registered N7806S, was destroyed in an accident near Grand Junction, Colorado. It was a personal flight under general aviation rules (Part 91). 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
September 30, 1987 · about 6:30 pm local time
Place
Grand Junction, Colorado · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Bell 47G-3B1 · all 47G-3B1s on the register
Registration
N7806S · registry record · serial 6607
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT WAS PRACTICING SOME HELICOPTER MANEUVERS IN PREPARATION FOR TAKING AN FAA FLT EXAMINATION. DURING ONE OF HIS MANEUVERS THE HELICOPTER'S MAIN ROTOR BLADES STRUCK THE GROUND CAUSING THE ACFT TO CRASH. A POST ACCIDENT FIRE ERRUPTED AND DESTROYED THE HELICOPTER.

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: private
  • Ratings: single-engine land; rotorcraft: helicopter
  • Flight time: 152 hours in all; 79 in this make and model; 5 in the last 90 days; 91 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 7,748 hours
  • Last inspection: annual inspection, July 2, 1987; 6 hours since
  • Maximum gross weight: 2,950 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming TVO-435-B1A (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: at 2 knots
  • Visibility: 90 statute miles
  • Sky: clear
  • Temperature: 79°F (26°C), dew point 34°F (1°C)

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.