NTSB Identification: DEN92FA078.
The docket is stored on NTSB microfiche number 47693.
Accident occurred Friday, July 31, 1992 in RUIDOSO, NM
Probable Cause Approval Date: 06/30/1993
Aircraft: CESSNA 337A, registration: N337LS
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.

THE PILOT WAS CLEARED BY ARTCC FOR A VISUAL APPROACH TO RUNWAY 24. HE ADVISED UNICOM HE WAS TOO HIGH AND WOULD CIRCLE TO LAND. AN AIRPORT ATTENDANT SAW THE AIRPLANE'S LANDING LIGHTS AND WATCHED IT BEGIN A LEFT TURN WHEN IT WAS OVER AND HALFWAY DOWN THE RUNWAY. THE DESCENT RATE INCREASED TO A 'HARD DIVE ABOUT 35 TO 45 DEGREES' BEFORE DISAPPEARING INTO A RAVINE ONE MILE SOUTH OF THE AIRPORT. VISUAL CONDITIONS PREVAILED BUT IT WAS A DARK NIGHT WITH NO MOON.

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

THE PILOT EXPERIENCING SPATIAL DISORIENTATION AND THE RESULTANT EXCESSIVE DESCENT RATE. FACTORS WERE: THE DARK NIGHT CONDITIONS.

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