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NTSB Report
October 22, 1989 · Hughes 369HS · N3961H
Ogilvie, MN
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 22, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Ogilvie, MN
Aircraft
Hughes 369HS
Tail Number
N3961H
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MKC90LA016
THE PILOT SAID THAT AFTER DROPPING HIS SLING LOAD, DURING A HELICOPTER FIRE CONTROL OPERATION, HE NOTED A LOSS OF ENGINE RPM. THE ENGINE OUT LIGHT ILLUMINATED FOLLOWED BY THE LOW RPM WARNING AUDIO. AN EMERGENCY AUTOROATION WAS MADE IN A BURNED OUT SWAMPY AREA. AFTER TOUCHDOWN, THE AIRCRAFT ROLLED OVER & WAS DAMAGED. NO PRE-ACCIDENT PART FAILURE OR MALFUNCTION OF THE ENGINE OR SYSTEMS WAS FOUND AND THERE WAS NO EVIDENCE OF A FUEL SUPPLY SHORTAGE.
NTSB Probable Cause
LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON. FACTORS RELATED TO THE ACCIDENT WERE: THE UNSUITABLE TERRAIN CONDITIONS IN THE EMERGENCY LANDING AREA.
Full Narrative
THE PILOT SAID THAT AFTER DROPPING HIS SLING LOAD, DURING A HELICOPTER FIRE CONTROL OPERATION, HE NOTED A LOSS OF ENGINE RPM. THE ENGINE OUT LIGHT ILLUMINATED FOLLOWED BY THE LOW RPM WARNING AUDIO. AN EMERGENCY AUTOROATION WAS MADE IN A BURNED OUT SWAMPY AREA. AFTER TOUCHDOWN, THE AIRCRAFT ROLLED OVER & WAS DAMAGED. NO PRE-ACCIDENT PART FAILURE OR MALFUNCTION OF THE ENGINE OR SYSTEMS WAS FOUND AND THERE WAS NO EVIDENCE OF A FUEL SUPPLY SHORTAGE.
Flight
Event TypeAccident
Event Time14:27 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369HS
Tail NumberN3961H
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 133
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 · Turboshaft · 400
Seats5
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 40 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180°
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO