PINEDALE, WY, USA
N5059F
FAIRCHILD HILLER FH-1100
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.
Source: NTSB Aviation Accident Database
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