DEN83FA116

NTSB accident investigation · Cessna 172P · Lander, WY · May 22, 1983

Accident · FatalField investigationFinal report
Date
May 21, 1983, 19:30 local (May 22, 1983, 01:30 UTC)
Place
Lander, WY
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N54609Cessna 172P
Weather
Day
Status
Completed
Report
Approved by Office Director
FAA report
19830521025499A
Case key
15986

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

In flight encounter with weatherCruise - normal
In-flight planning/decision - improperPilot in commandCause
Light condition - duskFactor
Terrain condition - high terrainFactor
Weather condition - low ceilingFactor
Weather condition - fogFactor
Weather condition - turbulence(thunderstorms)Factor
Weather condition - rainFactor
Weather condition - snowFactor
Vfr flight into imc - misjudgedPilot in commandCause
Self-induced pressurePilot in commandFactor
Loss of control - in flightCruise
Aircraft handling - not maintainedPilot in commandCause
Spatial disorientationPilot in commandCause
Lack of total instrument timePilot in commandFactor
Lack of recent experiencePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - mountainous/hillyFactor
Terrain condition - snow coveredFactor

Analysis

At noon on 5/21/83, the plt departed riverton, WY on a flt to ogden, ut to transport a minister back to riverton for a wedding. After arriving at ogden, he obtained a wx briefing for the return flt. He was warned of possible thunderstormactivity, turbulence, low ceilings & strong, gusty winds. The non-instrument rated plt was told that in the vicinity of Lander & rock springs, WY, there were rain showers, and with thunderstorm activity, VFR flt may not be possible. The pltfiled a VFR flt plan & stated he would 'take a look-see.' At 1729, he took off. There was no en route radio contact, except when he requested & was provided the riverton wx. At aprx 1930, a resident near the crash site heard a small acftflying low. She reported thunder, lightning, thick fog & heavy snowfall at that time. When the acft did not arrive at riverton, a search was begun. It was found near a mountain pass where it crashed on a ridge in a 45 deg nose down, wingslevel attitude. There was virtually no movement after impact. No preimpact/mechanical failure/malfunction was reported.

Aircraft

Registration
N54609
Reported as
Cessna 172P
Category
Airplane
Serial number
172-75011
Airframe hours
383
Engine
Avco Lycoming O-320-D2J, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Business · Part 91
Operator
Roger Peters
Registered owner
Arthur Rex Rogers
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 18, 1983 · 1 hours before
Departed
OGD · Ogden, UT
Destination
RIW · Riverton, WY
Flight plan
VFR

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
45
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
229 total · 100 in this make and model · 142 as pilot in command · 1 in the last 90 days

Weather

Conditions
Day
Temperature
50 °F, dew point 41 °F
Altimeter
30.00 inHg
Observed at
LND, 23 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.