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NTSB Report
May 6, 1982 · Hughes 369HS · N9184F
Gooding, ID
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 6, 1982
Injury Outcomes
1 injury (1 serious injury)
Location
Gooding, ID
Aircraft
Hughes 369HS
Tail Number
N9184F
Operator
Thomas Heli
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
SEA82FYA07
WHILE MAKING A TURN AT THE END OF A SWATH RUN, THE PILOT HEARD A BANG AND THEN NOTICED A LOSS OF ENGINE POWER. HE ENTERED AN AUTOROTATIVE LANDING FROM A LOW ALTITUDE AT LOW AIRSPEED. SUBSEQUENTLY, THE HELICOPTER LANDED HARD AND ROLLED OVER ON ITS RIGHT SIDE. AN INVESTIGATION REVEALED THAT THE SPUR ADAPTER GEARSHAFT HAD FAILED FROM FATIGUE. THE FATIGUE INITIATED ON THE LOADED SIDE OF A SPLINE TOOTH AT AN AREA OF HEAVY WEAR. TOTAL FLIGHT TIME OF THE FAILED PART WAS 3491 HRS. THE SPUR ADAPTER COUPLER THE COMPRESSOR TO THE N1 TURBINE.
Full Narrative
WHILE MAKING A TURN AT THE END OF A SWATH RUN, THE PILOT HEARD A BANG AND THEN NOTICED A LOSS OF ENGINE POWER. HE ENTERED AN AUTOROTATIVE LANDING FROM A LOW ALTITUDE AT LOW AIRSPEED. SUBSEQUENTLY, THE HELICOPTER LANDED HARD AND ROLLED OVER ON ITS RIGHT SIDE. AN INVESTIGATION REVEALED THAT THE SPUR ADAPTER GEARSHAFT HAD FAILED FROM FATIGUE. THE FATIGUE INITIATED ON THE LOADED SIDE OF A SPLINE TOOTH AT AN AREA OF HEAVY WEAR. TOTAL FLIGHT TIME OF THE FAILED PART WAS 3491 HRS. THE SPUR ADAPTER COUPLER THE COMPRESSOR TO THE N1 TURBINE.
Flight
Event TypeAccident
Event Time06:45 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369HS
Tail NumberN9184F
Aircraft CategoryHeli
DamageDestroyed
OperatorThomas Heli
Operating RulePart 137
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 · Turboshaft · 400
Seats4
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 29 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point10 C / 0 C
Altimeter0