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NTSB Report
September 27, 1987 · Hughes 369D · N8613F
Seattle, WA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 27, 1987
Injury Outcomes
1 injury (1 minor injury), 3 uninjured
Location
Seattle, WA
Aircraft
Hughes 369D
Tail Number
N8613F
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA87FA194
THE PLT RPRTD THAT WHILE HE WAS IN CRUISE FLIGHT AT ABOUT 1000', THE ENG LOST POWER. HE INITIATED AN AUTOROTATION TO AN ATHLETIC FIELD IN A CITY PARK. DRG HIS APCH, HE CHANGED HIS PLANNED TOUCHDOWN POINT SVRL TIMES DUE TO PERSONNEL ON THE FIELD. HE SAID THAT THIS RESULTED IN A LOSS OF AIRSPEED, & SUBSEQUENTLY, THE HELICOPTER LANDED HARD. DRG TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWNWARD & SEVERED THE TAIL BOOM. AN EXAM OF THE ENG REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION THAT WOULD HAVE RESULTED IN A LOSS OF POWER.
Full Narrative
THE PLT RPRTD THAT WHILE HE WAS IN CRUISE FLIGHT AT ABOUT 1000', THE ENG LOST POWER. HE INITIATED AN AUTOROTATION TO AN ATHLETIC FIELD IN A CITY PARK. DRG HIS APCH, HE CHANGED HIS PLANNED TOUCHDOWN POINT SVRL TIMES DUE TO PERSONNEL ON THE FIELD. HE SAID THAT THIS RESULTED IN A LOSS OF AIRSPEED, & SUBSEQUENTLY, THE HELICOPTER LANDED HARD. DRG TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWNWARD & SEVERED THE TAIL BOOM. AN EXAM OF THE ENG REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION THAT WOULD HAVE RESULTED IN A LOSS OF POWER.
Flight
Event TypeAccident
Event Time10:30 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369D
Tail NumberN8613F
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
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 40 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 7 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point57 / 48
Altimeter30.00 inHg
Observation Time17:45
Weather SourceWFAC