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Accidents · NTSB DEN02LA036 · Final report

Bell 206B-III accident near Leadville, Colorado, April 4, 2002

On April 4, 2002 at about 9:00 pm local time, a Bell 206B-III (helicopter), registered N997GM, was destroyed in an accident near Leadville, Colorado. It was an aerial observation flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

the pilot's inadvertent flight into adverse weather, which resulted in a collision with terrain. A contributing factor was the downdraft.

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

What the record shows

Date
April 4, 2002 · about 9:00 pm local time
Place
Leadville, Colorado · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Bell 206B-III · all 206B-IIIs on the register
Registration
N997GM · no longer on the register · serial 2366
Damage
Destroyed
Flight
Aerial observation flight · general aviation rules (Part 91)

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

The pilot, who was on a power line patrol in mountainous terrain, flew the helicopter 100 feet to the right of the power line and into a 10 to 18 knot headwind. Airspeed was between 70 and 80 knots, altitude was 400 feet above the ground, and power was between 70 to 80 percent torque. As he turned to continue following the power line, a "strong downdraft pushed the helicopter" into the ground despite his efforts to regain control. The helicopter struck snow-covered terrain and rolled over.

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: 2,453 hours in all; 624 in this make and model; 104 in the last 90 days; 81 in the last 30 days; 2,203 as pilot in command
  • Last flight review: January 21, 2002
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: rgt
  • Injury: no injuries

The aircraft

  • Airframe total time: 8,890 hours
  • Last inspection: 100-hour inspection, January 17, 2002; 24 hours since
  • Maximum gross weight: 3,200 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Rolls Royce/Allison 250-C20B (turboshaft); 0 hours total
  • Operator: Aerowest Management Services, Inc.

The flight

  • Departed from: EGE Eagle CO at 8:30 pm
  • Destination: LXV Leadville CO

Weather at the time

  • Light: daylight
  • Wind: from 340° at 10 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 48°F (9°C), dew point 10°F (-12°C)
  • Altimeter: 30.25 inHg
  • Observation at 8:56 pm from LXV, 5 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.