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NTSB Report
August 9, 1986 · Cessna 172 · N4016F
Ten Sleep, WY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 9, 1986
Injury Outcomes
2 injuries (1 fatality, 1 serious injury)
Location
Ten Sleep, WY
Aircraft
Cessna 172
Tail Number
N4016F
Operator
John W Dunn
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN86FA223
THE PLT BECAME LOST/DISORIENTED AND INADVERTENTLY ENTERED THE NARROW CANYON IN A MOUNTAIN PASS. HE ATTEMPTED TO LAND ON A PUBLIC HIGHWAY AT 7,500 FEET MSL WHEN IT BECAME APPARENT THE ACFT WOULD NOT CLIMB FAST ENOUGH TO CLEAR RAPIDLY RISING TERRAIN AND THAT IT WAS NOT POSSIBLE TO REVERSE COURSE IN THE NARROW PASS. ON SHORT FINAL THE PLT OBSERVED VEHICULAR TRAFFIC APPROACH FROM AROUND A SWITCHBACK CURVE AND VEERED OFF THE HIGHWAY WHERE THE ACFT IMPACTED STEEP, ROCKY TERRAIN.
Full Narrative
THE PLT BECAME LOST/DISORIENTED AND INADVERTENTLY ENTERED THE NARROW CANYON IN A MOUNTAIN PASS. HE ATTEMPTED TO LAND ON A PUBLIC HIGHWAY AT 7,500 FEET MSL WHEN IT BECAME APPARENT THE ACFT WOULD NOT CLIMB FAST ENOUGH TO CLEAR RAPIDLY RISING TERRAIN AND THAT IT WAS NOT POSSIBLE TO REVERSE COURSE IN THE NARROW PASS. ON SHORT FINAL THE PLT OBSERVED VEHICULAR TRAFFIC APPROACH FROM AROUND A SWITCHBACK CURVE AND VEERED OFF THE HIGHWAY WHERE THE ACFT IMPACTED STEEP, ROCKY TERRAIN.
Flight
Event TypeAccident
Event Time13:30 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172
Tail NumberN4016F
Aircraft CategoryAir
DamageDestroyed
OperatorJohn W Dunn
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300-D · Reciprocating · 145
Seats4
People & Injuries
Injury Summary2 injuries (1 fatality, 1 serious injury)
Fatal1
Serious1
Minor0
Uninjured0
Total2
Crew 1Age 50 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 6 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point48
Altimeter30.00 inHg
Observation Time19:45
Weather SourceWFAC