NTSB Identification: DEN83FA116.
The docket is stored on NTSB microfiche number 22363.
Accident occurred Saturday, May 21, 1983 in LANDER, WY
Aircraft: CESSNA 172P, registration: N54609
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

VFR FLIGHT INTO IMC..MISJUDGED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRCRAFT HANDLING..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

SPATIAL DISORIENTATION..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DUSK


Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..TURBULENCE(THUNDERSTORMS)


Contributing Factors

WEATHER CONDITION..RAIN


Contributing Factors

WEATHER CONDITION..SNOW


Contributing Factors

SELF-INDUCED PRESSURE..PILOT IN COMMAND


Contributing Factors

LACK OF TOTAL INSTRUMENT TIME..PILOT IN COMMAND


Contributing Factors

LACK OF RECENT EXPERIENCE..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

TERRAIN CONDITION..SNOW COVERED

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