Aircraft Accident/Incident Report

Pinedale, Wyoming 82941
Sunday, September 13, 1987 10:30 MDT

NTSB Narrative Summary Released at Completion of Accident

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.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/13/1987
Event Day of the Week Sunday
Time of Event 1030
Event Time Zone Mountain Daylight Time
Event City PINEDALE
Event State WYOMING
Event Country --
Zipcode of the event site 82941
Event Date Year 1987
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 8000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 9267
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 3
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 1897
NTSB Notification Source --
NTSB Notification Date Sep 13 1987 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information 35265
Date of most recent change to record Dec 13 2000 2:49PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5059F
NTSB Number DEN87FA237
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name FAIRCHILD HILLER
Aircraft Model FH-1100
Aircraft Series Identifier FH-1100
Aircraft Serial Number 220
Certified Max Gross Weight 2750
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 14 1987 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name HUISH CHEMICAL COMPANY
Aircraft Owner Street Address 3540 W. 1987 SOUTH
Aircraft Owner City SALT LAKE CITY
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84101
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1000
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --