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NTSB Report
June 20, 1987 · Bell 47G-2 · N6772D
Miami, FL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 20, 1987
Injury Outcomes
No injuries (2 uninjured)
Location
Miami, FL
Aircraft
Bell 47G-2
Tail Number
N6772D
Operator
Kimura International
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA87LA190
THE INSTRUCTOR PLT STATED THAT THE HELICOPTER BEGAN TO VIBRATE WHILE THE STUDENT PLT WAS MANEUVERING IT DURING AN INSTRUCTIONAL FLT. THE INSTRUCTOR PLT THEN EXECUTED A FORCED LANDING AND UPON TOUCHDOWN THE MAIN ROTOR BLADES CONTACTED THE GROUND. INSPECTION OF THE HELICOPTER REVEALED THAT THE BOLT WHICH ATTACHES ONE SIDE OF THE SWASHPLATE TO THE SCISSOR ASSY BROKE RESULTING IN THE LOSS OF PITCH CONTROL OF THE MAIN ROTOR BLADES.
Full Narrative
THE INSTRUCTOR PLT STATED THAT THE HELICOPTER BEGAN TO VIBRATE WHILE THE STUDENT PLT WAS MANEUVERING IT DURING AN INSTRUCTIONAL FLT. THE INSTRUCTOR PLT THEN EXECUTED A FORCED LANDING AND UPON TOUCHDOWN THE MAIN ROTOR BLADES CONTACTED THE GROUND. INSPECTION OF THE HELICOPTER REVEALED THAT THE BOLT WHICH ATTACHES ONE SIDE OF THE SWASHPLATE TO THE SCISSOR ASSY BROKE RESULTING IN THE LOSS OF PITCH CONTROL OF THE MAIN ROTOR BLADES.
Flight
Event TypeAccident
Event Time18:50 EDT
Nearest AirportOPALOCKA (0nm N)
Runway9
Runway Length8002 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 47G-2
Tail NumberN6772D
Aircraft CategoryHeli
DamageSubstantial
OperatorKimura International
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435-A1D · Reciprocating · 260
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 27 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 8 kt
Visibility12 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time22:50
Weather SourceWFAC