NTSB Identification: LAX91FA094.
The docket is stored on NTSB microfiche number 44804.
Accident occurred Saturday, February 09, 1991 in SONOMA, CA
Probable Cause Approval Date: 07/23/1993
Aircraft: BOEING N2S-3, registration: N1065M
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.

AIRLINE CAPTAIN TOOK A 414-HOUR PRIVATE PILOT FOR AN AIRPLANE RIDE DURING WHICH A SERIES OF LOW LEVEL AEROBATIC MANEUVERS WERE PERFORMED. WITNESSES DESCRIBED THE MANEUVERS AS BEING WING OVERS AND/OR LOOPS, AND THEY WERE PERFORMED AT PROGRESSIVELY LOWER ALTITUDES. THE PILOT(S) FAILED TO PULL OUT OF THE FINAL MANEUVER, AND THE DUAL CONTROL AIRPLANE IMPACTED THE FIELD WHILE IN A WINGS LEVEL AND A 60 DEGREE NOSE LOW ATTITUDE. THE INVESTIGATION REVEALED EVIDENCE OF STRESSFUL EVENTS IN THE PILOT'S PROFESSIONAL AND PERSONAL LIFE. ALSO, CANNABINOID METABOLITE WAS FOUND IN HIS URINE.

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

THE PILOT-IN-COMMAND/CFI'S PERFORMANCE OF A LOW ALTITUDE AEROBATIC MANEUVER FROM WHICH HE FAILED TO RECOVER. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT RELATED TO THE PIC'S IMPROPER INFLIGHT DECISION, POOR JUDGMENT, AND HIS PSYCHOLOGICAL CONDITION.

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