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NTSB Report
September 13, 1987 · Fairchild Hiller FH-1100 · N5059F
Pinedale, WY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 13, 1987
Injury Outcomes
3 injuries (3 serious injuries)
Location
Pinedale, WY
Aircraft
Fairchild Hiller FH-1100
Tail Number
N5059F
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
DEN87FA237
THE PLT AND TWO PASSENGERS HAD FLOWN TO PINEDALE TO FISH. THE PLT STATED THAT HE WAS CRUISING AT AN ALT OF 400 FT AGL AND WAS EXECUTING A RT TURN AT THE REQUEST OF A PAX. HE STATED THAT HE SLOWED THE ACFT, DECREASED THE COLLECTIVE, AND ADDED RT PEDAL AS HE ENTERED THE TURN. THE ACFT BEGAN TO DESCEND RAPIDLY SO HE ATMPTD TO CORRECT WITH FULL COLLECTIVE AND AFT CYCLIC CTL, BUT THE ACFT IMPACTED THE GND. THE POSTCRASH EXAM OF THE WRECKAGE REVEALED NO EVIDENCE OF A MECH MALFUNCTION OR FAILURE PRIOR TO THE ACC. THE DENSITY ALT WAS CALCULATED TO BE 9,553 FT. THE BASIC HELICOPTER HANDBOOK STATES THAT TURNS ARE ENTERED FROM STRAIGHT AND LVL FLT BY APPLYING SIDEWARD PRESSURE ON THE CYCLIC. IT ALSO SAYS THAT THIS IS THE ONLY CTL MOVEMENT NECESSARY TO START THE TURN AND THAT PEDALS SHOULD NOT BE USED TO ASSIST THE TURN. WITNESSES INDICATED THAT THE ACFT HAD BEEN FLYING LOW OVER THE AREA THROUGHOUT THE WEEKEND.
Full Narrative
THE PLT AND TWO PASSENGERS HAD FLOWN TO PINEDALE TO FISH. THE PLT STATED THAT HE WAS CRUISING AT AN ALT OF 400 FT AGL AND WAS EXECUTING A RT TURN AT THE REQUEST OF A PAX. HE STATED THAT HE SLOWED THE ACFT, DECREASED THE COLLECTIVE, AND ADDED RT PEDAL AS HE ENTERED THE TURN. THE ACFT BEGAN TO DESCEND RAPIDLY SO HE ATMPTD TO CORRECT WITH FULL COLLECTIVE AND AFT CYCLIC CTL, BUT THE ACFT IMPACTED THE GND. THE POSTCRASH EXAM OF THE WRECKAGE REVEALED NO EVIDENCE OF A MECH MALFUNCTION OR FAILURE PRIOR TO THE ACC. THE DENSITY ALT WAS CALCULATED TO BE 9,553 FT. THE BASIC HELICOPTER HANDBOOK STATES THAT TURNS ARE ENTERED FROM STRAIGHT AND LVL FLT BY APPLYING SIDEWARD PRESSURE ON THE CYCLIC. IT ALSO SAYS THAT THIS IS THE ONLY CTL MOVEMENT NECESSARY TO START THE TURN AND THAT PEDALS SHOULD NOT BE USED TO ASSIST THE TURN. WITNESSES INDICATED THAT THE ACFT HAD BEEN FLYING LOW OVER THE AREA THROUGHOUT THE WEEKEND.
Flight
Event TypeAccident
Event Time10:30 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftFairchild Hiller FH-1100
Tail NumberN5059F
Aircraft CategoryHeli
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C18B · Turboshaft · 274
Seats5
People & Injuries
Injury Summary3 injuries (3 serious injuries)
Fatal0
Serious3
Minor0
Uninjured0
Total3
Crew 1Age 34 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 3 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point61 F / 36 C
Altimeter29.00 inHg
Weather SourceWIT