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NTSB Report
June 10, 2019 · S M & T Aircraft UH 1B · N64771
Northway, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 10, 2019
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Northway, AK
Aircraft
S M & T Aircraft UH 1B (1963)
Tail Number
N64771
Operator
Aurora Aviation Services
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
GAA19CA345
The helicopter pilot reported that he and the safety pilot were delivering fuel to a remote camp. During short final with the safety pilot on the controls and while the helicopter was about 50 ft above ground level, the descent rate increased. The safety pilot raised the collective, but the helicopter continued to descend, and the main rotor rpm began to decay. The helicopter then yawed right, rolled left, and impacted terrain. The helicopter sustained substantial damage to the fuselage and main rotor blades. The helicopter pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Descent rate-Not attained/maintained - C
Full Narrative
The helicopter pilot reported that, he and the safety pilot were delivering fuel to a remote camp. During short final, with the safety pilot on controls, about 50 feet above the ground, the helicopter's rate of decent increased. The safety pilot raised the collective, but the helicopter continued to descend, and the main rotor RPM began to decay. The helicopter then yawed to the right, rolled to the left, and impacted terrain. The helicopter sustained substantial damage to the fuselage and main rotor blades. The helicopter pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Flight
Event TypeAccident
Event Time11:46 AKDT
Nearest Airport0nm
Flight Plan FiledVfif
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftS M & T Aircraft UH 1B
Tail NumberN64771
Aircraft CategoryHeli
DamageSubstantial
OperatorAurora Aviation Services
Operating RulePart 91
Engine TypeTurboshaft
Engine DetailsLycoming · T53-L-11D · Turboshaft · 1100
Seats2
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 34 · Second Class · Serious
Crew 2Age 58 · None · Minor
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter0
Observation Time17:53
Weather SourcePILO