Fairchild Hiller FH-1100 N5059F

Summary

On 13 September 1987 at about 16:30 local time, a Fairchild Hiller FH-1100 registered N5059F was involved in an accident near Pinedale, Wyoming, United States. 3 people were on board and 3 were seriously injured. The aircraft was destroyed. No probable cause statement is available for this record.

Date

13 September 1987 at 16:30

Classification

Accident

Location

Pinedale, Wyoming, United States

Coordinates

42.8598, -109.8595

Aircraft

Fairchild Hiller FH-1100

Registration

N5059F

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

DEN87FA237

3 people were seriously injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB 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.

Quoted verbatim from the NTSB record.