NTSB Identification: LAX91LA322.
The docket is stored on NTSB microfiche number 44881.
Accident occurred Sunday, July 21, 1991 in SAN CARLOS, CA
Probable Cause Approval Date: 05/05/1993
Aircraft: EXPERIMENTAL BROWN 2, registration: N255Y
Injuries: 1 Serious.

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

WITNESSES OBSERVED THE NON-RADIO EQUIPPED AIRCRAFT ENTER THE PATTERN IN COMPANY WITH ANOTHER AIRCRAFT AS A FLIGHT OF TWO. THE FIRST AIRCRAFT LANDED, HOWEVER, THE ACCIDENT AIRCRAFT INITIATED A GO AROUND. GROUND WITNESSES SAID THE ENGINE WAS PRODUCING STRONG POWER SOUNDS THROUGH OUT THE SEQUENCE. JUST AFTER THE AIRCRAFT BEGAN THE GO AROUND MANEUVER, THE AIRCRAFT SUDDENLY ROLLED INVERTED AND STRUCK A PARKED AIRCRAFT AND TWO FENCES. FAA AIRWORTHINESS INSPECTORS FROM THE SAN FRANCISCO FLIGHT STANDARDS DISTRICT OFFICE EXAMINED THE AIRCRAFT. CONTROL SYSTEM CONTINUITY WAS TRACED THROUGHOUT THE AIRCRAFT. NO OTHER SYSTEM ABNORMALITIES WERE IDENTIFIED DURING THE EXAMINATION. IN HIS WRITTEN ACCIDENT REPORT, THE PILOT SAID THAT THERE WAS NO MECHANICAL MALFUNCTION OF THE AIRCRAFT.

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

THE FAILURE OF THE PILOT TO MAINTAIN CONTROL OF THE AIRCRAFT DURING THE ATTEMPTED GO AROUND.

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