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Accidents · NTSB SEA01LA029 · Final report

Kaman K-1200 accident near Prineville, Oregon, December 10, 2000

On December 10, 2000 at about 10:00 pm local time, a Kaman K-1200 (helicopter), registered N317KA, was substantially damaged in an accident near Prineville, Oregon (Prineville airport). It was a positioning flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to adequately compensate for wind conditions.

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

What the record shows

Date
December 10, 2000 · about 10:00 pm local time
Place
Prineville, Oregon · Prineville · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Kaman K-1200
Registration
N317KA · registry record · serial 0025
Damage
Substantial damage
Flight
Positioning flight · general aviation rules (Part 91)

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

The pilot reported that while maneuvering for departure, the helicopter began to drift to the left. While attempting to correct the situation, the helicopter's left main landing gear hit the ground and the strut collapsed. The helicopter subsequently rolled over. The helicopter sustained substantial damage to the fuselage, tail boom and rotor blades. The 1356 METAR observation at Redmond, Oregon, (11 miles southwest of the accident location) reported winds from 310 degrees at 17 knots gusting to 21 knots. The pilot reported that the winds, at the time of the accident, were from the southwest at 15 knots, gusting to 29 knots. He also reported that there were no pre-accident mechanical failures that contributed to the accident.

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: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: helicopter; instructor: instrument airplane; instrument: airplane; rotorcraft: helicopter
  • Flight time: 14,000 hours in all; 2,500 in this make and model
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: frt

The aircraft

  • Airframe total time: 4,060 hours
  • Last inspection: continuous airworthiness programme, December 8, 2000; 5 hours since
  • Maximum gross weight: 12,000 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Lycoming T-53-17A1 (turboshaft); 0 hours total
  • Operator: Grizzly Mountain Aviation

The flight

  • Departed from: S39 at 10:00 pm
  • Destination: ONP Newport OR
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 290° at 17 knots, gusting 21
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 39°F (4°C), dew point 21°F (-6°C)
  • Altimeter: 30.00 inHg
  • Observation at 9:56 pm from RDM, 11 miles away

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.