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Accidents · NTSB DEN01LA002 · Final report

Hughes 369FF accident near Baggs, Wyoming, October 10, 2000

On October 10, 2000 at about 3:20 pm local time, a Hughes 369FF (helicopter), registered N82638, was substantially damaged in an accident near Baggs, Wyoming. It was an other work-use flight under external-load helicopter rules (Part 133). 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

impact with terrain following a total loss of engine power due to fatigue failure of the turbine-to-compressor coupling. A contributing factor was the unsuitable terrain for a forced landing.

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

What the record shows

Date
October 10, 2000 · about 3:20 pm local time
Place
Baggs, Wyoming · map
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Hughes 369FF · all 369FFs on the register
Registration
N82638 · no longer on the register · serial 0056FF
Damage
Substantial damage
Flight
Other work-use flight · external-load helicopter rules (Part 133)

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

The helicopter was engaged in seismographic/external load operations. According to the pilot, the helicopter was in a stabilized out-of-ground-effect hover at approximately 130 feet above the ground when he heard a loud "pop" or "bang" and the engine lost power. The pilot said the helicopter descended rapidly and impacted the ground at a higher than normal rate of descent. Examination of the engine revealed that the turbine-to-compressor coupling exhibited fatigue failure at the turbine end, having approximately 60 percent of the splines broken away.

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: rotorcraft: helicopter
  • Flight time: 13,186 hours in all; 9,180 in this make and model; 196 in the last 90 days; 96 in the last 30 days; 13,066 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 2,750 hours
  • Last inspection: annual inspection, August 8, 2000; 93 hours since
  • Maximum gross weight: 3,100 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Allison 250-C30 (turboshaft); 0 hours total

The flight

  • Departed from: WY at 1:15 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 270° at 10 knots
  • Visibility: 30 statute miles
  • Sky: clear
  • Temperature: 145°F (63°C), dew point 0°F (-18°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.