NTSB Identification: DEN82DA042
14 CFR Part 91: General Aviation
Accident occurred Friday, March 12, 1982 in BOULDER, CO
Probable Cause Approval Date: 03/12/1983
Aircraft: BEECH A36TC, registration: N3738J
Injuries: 2 Uninjured.

THE PILOT REPORTED THAT DURING A NORMAL APPROACH, HE ENCOUNTERED A SEVERE DOWNDRAFT IN WINDS GUSTING ABOUT 40 TO 60 KNOTS. HE STARTED TO ABORT THE LANDING BY RAISING THE GEAR AND APPLYING FULL POWER. THE PILOT STATED THAT HE TURNED RIGHT TO AVOID A HILL, BUT WAS UNABLE TO GAIN ENOUGH ALTITUDE TO CLEAR A HOUSE. THEREFORE, HE CHOPPED THE POWER AND LET THE AIRCRAFT DOWN INTO AN OPEN AREA. A WITNESS STATED THAT THE PLANE APPEARED TO ENTER AN AREA OF SINK THAT IS NORMALLY PRESENT ON THE APPROACH END OF THAT RUNWAY IN HIGH WESTERLY WINDS. THE PASSENGER STATED THAT THE RIGHT WING CLIPPED A POWERLINE BEFORE THE PLANE WENT DOWN AT A SHALLOW ANGLE. THE AIRCRAFT CRASHED ON A GRAVEL ROAD ABOUT 1000 FT FROM THE APPROACH END OF THE RUNWAY. THE ELEVATION WAS ABOUT 5300 FT MSL.

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

GO-AROUND..DELAYED..PILOT IN COMMAND

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

STALL/MUSH..INADVERTENT..PILOT IN COMMAND


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..HIGH DENSITY ALTITUDE


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

WEATHER CONDITION..GUSTS


Contributing Factors

WEATHER CONDITION..DOWNDRAFT


Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN


Contributing Factors

MANEUVER..PERFORMED..PILOT IN COMMAND


Contributing Factors

OBJECT..WIRE,STATIC

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