| Crash location | 41.200000°N, 105.616670°W |
| Nearest city | Laramie, WY
41.311367°N, 105.591101°W 7.8 miles away |
| Tail number | N4825V |
|---|---|
| Accident date | 31 Oct 1989 |
| Aircraft type | Cessna 172 Cutlass(AF) Cessna 172RG(NTSB) |
| Additional details: | WHITE WITH RED STRIPE |
THE LOSS OF CONTROL OF THE AIRPLANE IN INSTRUMENT METEOROLOGICAL CONDITIONS AFTER THE PILOT BECAME SPATIALLY DISORIENTED. CONTRIBUTING TO THE ACCIDENT WAS THE FAILURE OF THE VACUUM SYSTEM WHICH RENDERED THE VACUUM/GYRO INSTRUMENTS INOPERATIVE. ALSO CONTRIBUTING TO THIS FAILURE WAS THE IMPROPER INSTALLATION OF THE VACUUM PUMP BY UNKNOWN PERSON(S).