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NTSB Report
August 22, 2025 · Kaman Aerospace K-1200 · N171PL
Eagle, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 22, 2025
Injury Outcomes
No injuries (1 uninjured)
Location
Eagle, CO
Aircraft
Kaman Aerospace K-1200 (2018)
Tail Number
N171PL
Operator
Columbia Basin Helicopter
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN25LA334
The pilot stated that during a rotorcraft external load operation for firefighting, he was refilling the helicopter bucket at a lake. He stated that there had been wind gusts throughout the day and a right quartering tailwind of approximately 15 kts was present when he was refilling the bucket. He said that when another helicopter flew by his helicopter about 50-100 yds right and 150 ft above his position, he felt a push to the left. He pulled back on the cyclic control, but he could not recover the helicopter, which continued pitching to the left. The helicopter descended into the lake and sustained substantial to the main rotor blades. The pilot stated there was no mechanical malfunction/failure of the helicopter that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to maintain helicopter control which resulted in an uncontrolled descent and impact with terrain.
Full Narrative
The pilot stated that during a rotorcraft external load operation for firefighting, he was refilling the helicopter bucket at a lake. He stated that there had been wind gusts throughout the day and a right quartering tailwind of approximately 15 kts was present when he was refilling the bucket. He said that when another helicopter flew by his helicopter about 50-100 yds right and 150 ft above his position, he felt a push to the left. He pulled back on the cyclic control, but he could not recover the helicopter, which continued pitching to the left. The helicopter descended into the lake and sustained substantial to the main rotor blades. The pilot stated there was no mechanical malfunction/failure of the helicopter that would have precluded normal operation.
Flight
Event TypeAccident
Event Time16:15 MDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftKaman Aerospace K-1200
Tail NumberN171PL
Aircraft CategoryHeli
DamageSubstantial
OperatorColumbia Basin Helicopter
Operating RulePart 133
Engines1
Engine TypeTurboshaft
Engine DetailsHoneywell Aerospace · T5317A-1 · Turboshaft · 1500
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 59 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point43 C
Altimeter30.25 inHg
Observation Time15:56
Weather SourceWFAC