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NTSB Report
March 7, 1986 · Hughes 369D · N58420
New Boston, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
March 7, 1986
Injury Outcomes
1 injury (1 minor injury), 3 uninjured
Location
New Boston, TX
Aircraft
Hughes 369D
Tail Number
N58420
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
FTW86LA041
THE PILOT EXPERIENCED A TAIL ROTOR DRIVE SHAFT FLEXIBLE COUPLING FAILURE WHEN HE PULLED COLLECTIVE PITCH TO COME TO A HOVER BEFORE LANDING. THE HELICOPTER ENTERED AN UNCONTROLLABLE RIGHT SPIN. DURING HIS HASTE TO GET THE HELICOPTER ON THE GROUND THE PILOT MADE A HARD TOUCHDOWN. THE SPINNING HELICOPTER THEN ROLLED ONTO ITS RIGHT SIDE BEFORE COMING TO A STOP.
Full Narrative
THE PILOT EXPERIENCED A TAIL ROTOR DRIVE SHAFT FLEXIBLE COUPLING FAILURE WHEN HE PULLED COLLECTIVE PITCH TO COME TO A HOVER BEFORE LANDING. THE HELICOPTER ENTERED AN UNCONTROLLABLE RIGHT SPIN. DURING HIS HASTE TO GET THE HELICOPTER ON THE GROUND THE PILOT MADE A HARD TOUCHDOWN. THE SPINNING HELICOPTER THEN ROLLED ONTO ITS RIGHT SIDE BEFORE COMING TO A STOP.
Flight
Event TypeAccident
Event Time14:15 CST
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369D
Tail NumberN58420
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 135
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury), 3 uninjured
Fatal0
Serious0
Minor1
Uninjured3
Total4
Crew 1Age 28 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind165° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter30.00 inHg
Weather SourcePILO