NTSB Identification: DEN88FA050.
The docket is stored on NTSB microfiche number 36080.
Accident occurred Monday, January 11, 1988 in KIOWA, CO
Probable Cause Approval Date: 02/28/1989
Aircraft: CESSNA T303, registration: N9565T
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 PLT OBTAINED TWO WX BRIEFINGS AND FILED AN IFR FLT PLAN TO EL PASO, TX. HE WAS NOT INSTRUMENT RATED. THE ACFT DEPARTED APA AT 1959 AND DISAPPEARED FROM RADAR AT 2010. THE CRASH SITE WAS 11- 1/2 MI SE OF THE KIOWA VORTAC AND 36 MI SE OF APA. RADAR SHOWED A 15-MI WIDE BAND OF SNOW SHOWERS SE OF THE KIOWA VORTAC. GROUND WITNESSES REPORTED BLIZZARD CONDITIONS. PLT MEDICAL CERTIFICATE STATED, 'NOT VALID FOR NIGHT FLIGHT OR BY COLOR CONTROL.' PLT AUTOPSY ALSO DISCLOSED 'MYXOMATOUS ALTERATION OF THE MITRAL VALVE, CONSISTENT WITH MITRAL VALVE PROLAPSE (FLOPPY MITRAL VALVE).'

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

SPATIAL DISORIENTATION..PILOT IN COMMAND

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

FLIGHT INTO KNOWN ADVERSE WEATHER..INITIATED..PILOT IN COMMAND



Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

SELF-INDUCED PRESSURE..PILOT IN COMMAND


Contributing Factors

LACK OF TOTAL INSTRUMENT TIME..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

WEATHER CONDITION..GUSTS


Contributing Factors

WEATHER CONDITION..SNOW


Contributing Factors

WEATHER CONDITION..OBSCURATION


Contributing Factors

WEATHER CONDITION..TURBULENCE

Index for Jan1988 | Index of months