NTSB Identification: SEA87LA012.
The docket is stored on NTSB microfiche number 32792.
Accident occurred Sunday, October 12, 1986 in BOULDER CITY, NV
Aircraft: LET L-13, registration: N2NV
Injuries: 1 Serious,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.

THE PLT STATED THAT A DOWNDRAFT WAS ENCOUNTERED AND AN UNDERSHOOT OCCURRED WHILE ON BASE LEG. A HIGH SINK RATE DEVELOPED AND THE PLT DID NOT TAKE CORRECTIVE ACTION SOON ENOUGH. THE ACFT STRUCK THE GROUND, ROLLED A SHORT DISTANCE THROUGH BUSHES, AND ACROSS A TWO FOOT GULLEY BEFORE COMING TO REST. THE PASSENGER STATED THAT THE PLT ENTERED INTO AN INTENTIONAL SPIN WHILE IN THE PRACTICE AREA IN ORDER TO SHOW OFF. HE ALSO STATED THAT THE PLT MADE A RATHER RAPID DESCENT BY THE USE OF SPOILERS THAT EXCEEDED THE LIMITS OF THE VERTICAL SPEED INDICATOR.

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

COMPENSATION FOR WIND CONDITIONS..IMPROPER..PILOT IN COMMAND

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

PROPER DESCENT RATE..EXCEEDED..PILOT IN COMMAND

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

IMPROPER USE OF PROCEDURE..PILOT IN COMMAND

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

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

OSTENTATIOUS DISPLAY..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..DOWNDRAFT

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