NTSB Identification: NYC94FA040.
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Accident occurred Thursday, December 16, 1993 in WHITE MILLS, PA
Probable Cause Approval Date: 09/13/1994
Aircraft: AERO COMMANDER 500A, registration: N9379R
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.

THE AIRPLANE WAS OBSERVED BY WITNESSES IN A ROLLING MANEUVER, FOLLOWED BY THE SEPARATION OF THE LEFT WING AND COLLISION WITH TREES. WITNESSES STATED THAT THE PILOT HAD PREFORMED ACROBATICS IN THIS AIRPLANE ON OTHER OCCASIONS. THE AIRPLANE FLIGHT MANUAL PROHIBITS INTENTIONAL ACROBATICS. NO EVIDENCE OF CORROSION OR FATIGUE IN THE WING SPAR OR SUPPORT STRUCTURES WAS OBSERVED.

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

was the fracture and separation of the airplane wing, and the subsequent loss of control and collision with trees, as a result of the pilot's repeated performance of acrobatic maneuvers, which exceeded the design limits of the airplane.

Full narrative available

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