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NTSB Report
February 8, 2017 · Hughes OH 6A NO Series · N6640Z
Price, UT
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
February 8, 2017
Injury Outcomes
No injuries (2 uninjured)
Location
Price, UT
Aircraft
Hughes OH 6A NO Series (1970)
Tail Number
N6640Z
Operator
Usda Aphis Ws Atoc
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA17CA135
The helicopter pilot reported that, after landing to refuel, he reduced power to flight idle and initiated a 2-minute cooldown before shutting off the engine. One minute into the cooldown, the fuel truck approached the helicopter from the rear and struck the main rotor blades. The helicopter sustained substantial damage to the main rotor blades.
NTSB Probable Cause
Environmental issues-Physical environment-Object/animal/substance-Ground vehicle-Effect on operation - C
Full Narrative
The helicopter pilot reported that after landing to refuel, he reduced power to flight idle and initiated a 2-minute cool down prior to shutting off the engine. He further reported that one minute into the cool down, the fuel truck approached the helicopter from the rear and struck the main rotor blades. The helicopter sustained substantial damage to the main rotor blades. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Flight
Event TypeAccident
Event Time11:30 MST
Nearest Airport0nm
Flight Plan FiledUnknown
Flight Plan ActivatedUnknown
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes OH 6A NO Series
Tail NumberN6640Z
Aircraft CategoryHeli
DamageSubstantial
OperatorUsda Aphis Ws Atoc
Engines1
Engine TypeTurboshaft
Engine DetailsRolls Royce · 250-C20B · Turboshaft · 460
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 36 · Second Class · None
Crew 2Age 58 · Unknown · None
Conditions
ConditionsVMC
LightDaylight
Wind80° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point48 / 28 C
Altimeter30.19 inHg
Observation Time19:53
Weather SourceWFAC