NTSB Identification: LAX91LA407.
The docket is stored on NTSB microfiche number 45780.
Accident occurred Thursday, September 26, 1991 in LIVERMORE, CA
Probable Cause Approval Date: 04/27/1993
Aircraft: ROBINSON R-22, registration: N2302A
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.

IN HIS WRITTEN STATEMENT, THE INSTRUCTOR PILOT STATED THAT HE AND HIS STUDENT WERE PRACTICING SLOPE LANDINGS. HE SAID THAT THE LEFT SKID WAS AGAINST THE SLOPE AND A GUST OF WIND SHIFTED THE HELICOPTER. HE SAID THAT THE STUDENT PILOT DID NOT APPLY THE CORRECT FLIGHT CONTROL INPUT AND THE HELICOPTER ROLLED OVER.

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

1) INCORRECT CONTROL INPUT BY THE STUDENT PILOT AND 2) THE FLIGHT INSTRUCTOR'S INADEQUATE SUPERVISION OF HIS STUDENT. A CONTRIBUTING FACTOR IN THIS ACCIDENT WAS THE UNFAVORABLE WIND CONDITIONS.

Index for Sep1991 | Index of months