NTSB Identification: DEN88FA114.
The docket is stored on NTSB microfiche number 37097.
Accident occurred Saturday, May 28, 1988 in WHEATLAND, WY
Probable Cause Approval Date: 09/11/1989
Aircraft: BEECH D-17S, registration: N1038M
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 WITNESSES SAID THEY SAW THE ACFT FLY A PATTERN INDICATIVE OF A BASE TO FINAL APPROACH TO RWY 35. THE AIRSTRIP HAS A SECOND RUNWAY ORIENTED EAST AND WEST. THE WIND WAS BLOWING FROM THE EAST AT 20 KNOTS. THE ACFT WRECKAGE WAS FOUND APPROXIMATELY 3/4 MILES WEST (DOWNWIND) OF RWY 35. THE ACFT HAD STRUCK A UTILITY POLE APPROXIMATELY 18 FEET AGL. THE PROP REVEALED EVIDENCE OF TORSIONAL DAMAGE AND SEVERAL PROP SLASH MARKS WERE FOUND IN THE DIRT NEAR THE WRECKAGE. THE OUTSIDE AIR TEMPERATURE WAS ABOUT 100 DEGREES FAHRENHEIT. WITNESSES STATED THAT THEY SAW THE ACFT DESCEND, PULL-UP ABRUPTLY, TWIST 90 DEGREES, THEN DESCEND RAPIDLY.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

AIRSPEED..NOT MAINTAINED..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

WEATHER CONDITION..CROSSWIND

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