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NTSB Report
September 23, 1986 · Jerome Dodge B-8-M · N4621N
Deer Park, WA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 23, 1986
Injury Outcomes
1 injury (1 fatality)
Location
Deer Park, WA
Aircraft
Jerome Dodge B-8-M
Tail Number
N4621N
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA86FYE01
THE GYROCOPTER WAS OBSERVED OSCILLATING IN FLIGHT PRIOR TO DESCENDING TO GROUND IMPACT. INVESTIGATION REVEALED INFLIGHT CONTACT BETWEEN THE MAIN ROTOR AND VERTICAL FIN/PUSHER PROPELLER HAD TAKEN PLACE. NO MECHANICAL FAILURE WAS FOUND WHICH WOULD HAVE RESULTED IN THE CONTACT.
Full Narrative
THE GYROCOPTER WAS OBSERVED OSCILLATING IN FLIGHT PRIOR TO DESCENDING TO GROUND IMPACT. INVESTIGATION REVEALED INFLIGHT CONTACT BETWEEN THE MAIN ROTOR AND VERTICAL FIN/PUSHER PROPELLER HAD TAKEN PLACE. NO MECHANICAL FAILURE WAS FOUND WHICH WOULD HAVE RESULTED IN THE CONTACT.
Flight
Event TypeAccident
Event Time13:00 PDT
Nearest AirportDEERPARK (0nm N)
Runway16
Runway Length6100 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftJerome Dodge B-8-M
Tail NumberN4621N
Aircraft CategoryGyro
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsMcculloch · 4318A · Reciprocating
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 31 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 14 kt
Visibility20 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point63 F / 36 C
Altimeter29.00 inHg
Weather SourceWFAC