NTSB Identification: LAX90LA115.
The docket is stored on NTSB microfiche number 42146.
Accident occurred Tuesday, March 13, 1990 in SONOMA VALLEY, CA
Probable Cause Approval Date: 09/28/1992
Aircraft: PIPER PA-18, registration: N3765Z
Injuries: 2 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 PILOT OF A PIPER PA-18 EXPERIENCED A GUST OF WIND FROM THE REAR SHORTLY AFTER LIFTOFF. THE PILOT LOST CONTROL AND THERE WAS INSUFFICCIENT ALTITUDE REMAINING FOR HIM TO RECOVER. THE PILOT MADE A LANDING INTO AN IRRIGATION DITCH OFF THE RIGHT SIDE OF THE RUNWAY. THE PILOT REPORTED NO MALFUNCTION WITH THE AIRCRAFT PRIOR TO THE ACCIDENT.

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

THE PILOTS INABILITY TO MAINTAIN AIRCRAFT CONTROL DURING A CRITICAL PHASE OF FLIGHT AFTER EXPERIENCEING A SHIFT IN WIND.

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