- Date
- August 9, 1986, 13:30 local (19:30 UTC)
- Place
- Ten Sleep, WY
- Injuries
- 1 fatal, 1 serious
- Damage
- Destroyed
- Phase of flight
- Landing
- Aircraft
- N4016FCessna 172
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19860809075549A
- Case key
- 16842
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
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.
Aircraft
- Registration
- N4016F
- Reported as
- Cessna 172
- Category
- Airplane
- Serial number
- 36916
- Airframe hours
- 4,044
- Engine
- Continental O-300-D, 145 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- John W. Dunn
- Registered owner
- Raymond Negaard
- Airworthiness certificate
- Standard, Normal; Standard, Utility
- Last inspection
- Annual · July 7, 1986 · 94 hours before
- Departed
- CDR · Chadron, NE
- Destination
- THP · Thermopolis, WY
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 50
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 257 total · 257 in this make and model · 191 as pilot in command · 16 in the last 90 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 280° at 6 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 73 °F, dew point 48 °F
- Altimeter
- 30.00 inHg
- Observed at
- WRL, 31 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N4016F · 1
Matched to the same aircraft by N-number and date.