Accident occurred Friday, August 10, 1984 in TABERNASH, CO Probable Cause Approval Date: 12/14/1992 Aircraft: CESSNA L-19E, registration: N4584A Injuries: 2 Fatal.THE AIRPLANE DEPARTED GRANDBY 8/10/84 AND FAILED TO ARRIVE AT ITS DESTINATION. ON 8/23/87, IT WAS FOUND ON THE SLOPE OF A HIGH TREE-COVERED RIDGE. VIDEO TAPE RECOVERED FROM THE WRECKAGE PROVIDED A VISUAL AND AUDIO RECORD OF THE FLIGHT FROM TAKEOFF TO IMPACT. COMPARING THE RECORDING TO A TOPOGRAPHICAL MAP, THE FLIGHT WAS SLOWLY CLIMBING BUT ITS ALTITUDE ABOVE THE GROUND WAS DECREASING WHEN IT CRASHED AT THE 10,200-FT LEVEL. DURING THE LAST FEW SECONDS OF THE TAPE, THE TERRAIN DOMINATED THE VIEW THROUGH THE COCKPIT WINDOW. THE PILOT MADE AN APPROXIMATELY 45 to 55-DEG ANGLE BANK TO THE RIGHT, AND THE STALL WARNING HORN COULD BE HEARD 3 TIMES DURING THE APRX. 180 DEG OF TURN. THE AIRPLANE SUBSEQUENTLY STALLED 3 TIMES, SPUN, FLIPPED OVER, AND ENTERED THE TREES. THE DENSITY ALTITUDE WAS JUST ABOVE 13,000 FT.**The National Transportation Safety Board determines the probable cause(s) of this accident as follows: IN-FLIGHT PLANNING/DECISION, IMPROPER...PILOT IN COMMAND AIRSPEED...NOT MAINTAINED...PILOT IN COMMANDDENSITY ALTITUDE NOT TAKEN INTO CONSIDERATION WHILE ATTEMPTING 180-DEGREE RIGHT TURN AT APPROX. 45 to 55 DEGREES OF BANK ANGLE...PILOT IN COMMAND INSUFFICIENT LIFT AVAILABLE TO COMPLETE THIS MANEUVER SAFELY.