NTSB Identification: MIA90FA067B.
The docket is stored on NTSB microfiche number 42067.
Accident occurred Saturday, February 03, 1990 in SEBASTIAN, FL
Probable Cause Approval Date: 07/29/1991
Aircraft: AMERICAN AA-1A, registration: N9486L
Injuries: 1 Fatal,1 Serious.

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.

A MIDAIR COLLISION OCCURRED BETWEEN A PIPER PA-28, N473FT, & AN AMERICAN AA-1A, N9486L, AS THE 2 ACFT WERE ON FINAL APCH TO LAND ON RWY 13 AT AN UNCTLD ARPT. BOTH ACFT THEN CRASHED TO THE GROUND. THE PLT OF THE AA-1A SURVIVED THE ACDNT, BUT DUE TO INJURIES, HE COULD NOT RECALL DETAILS OF THE OCCURRENCE. THE AA-1A WAS INITIALLY IN LEFT TRAFFIC BEHIND THE PA-28, A CFI (IN TRAFFIC AHEAD OF BOTH ACFT) HEARD THE PA-28 PLT RPRT ON A 1-3/4 MI FINAL APCH. HE THEN HEARD THE AA-1A PLT RPRT ON BASE LEG. THEREAFTER, THE CFI HEARD THE AA-1A PLT RPRT TURNING ON A SHORT FINAL APCH & BECAME AWARE OF A POTENTIAL TRAFFIC CONFLICT. THE CFI THEN SAW THE AA-1A IN A LEFT TURN ON THE RGT SIDE OF THE FINAL APCH PATH, AS IF THE PLT HAD OVERSHOT THE TURN TO FINAL. ALSO, HE SAW THE PA-28 ON FINAL APCH. SUBSEQUENTLY, THE 2 ACFT CONVERGED & COLLIDED. DURING IMPACT, THE PROP & NOSEWHEEL OF THE AA-1A HIT THE EMPENNAGE OF THE PA-28.

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

FAILURE OF THE AA-1A PILOT TO SEE-AND-AVOID THE PIPER PA-28 WHICH HAD ENTERED TRAFFIC FIRST. A FACTOR RELATED TO THE ACCIDENT WAS: FAILURE OF THE PA-28 PILOT TO SEE THE AMERICAN AA-1A, WHEN THE AA-1A WAS ON A BASE LEG AND THE PA-28 WAS FURTHER OUT ON FINAL APPROACH.

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