NTSB Identification: DEN86LA250.
The docket is stored on NTSB microfiche number 31365.
Accident occurred Friday, September 12, 1986 in CASPER, WY
Aircraft: PIPER PA-18A-150, registration: N8595D
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

WHILE IN NORMAL CRUISE FLT, AFTER CROSSING A RIDGELINE, THE PLT ENCOUNTERED DOWNDRAFT WIND CURRENTS. THE ACFT ENTERED A DESCENT FROM WHICH THE PLT COULD NOT RECOVER. HE ATTEMPTED TO MAKE AN EMERGENCY FORCED LANDING IN ROUGH DESERT TERRAIN. THE ACFT IMPACTED UNEVEN TERRAIN AND WAS SUBSTANTIALLY DAMAGED.

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

WEATHER CONDITION..DOWNDRAFT

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

TERRAIN CONDITION..ROUGH/UNEVEN

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

TERRAIN CONDITION..NONE SUITABLE

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