LITTLETON, MA, USA
N6586V
BELLANCA 17-31 ATC
GROUND WITNESSES OBSERVED THE RIGHT WING SEPARATE IN FLIGHT, THE ACFT BANK SHARPLY TO THE RIGHT ENTERED A SPIRAL DIVE AND CRASHED INTO A WOODED LOT IN A RESIDENTIAL AREA. INVESTIGATION REVEALED THAT THE RIGHT WING SEPARATION OCCURRED WHEN THE FRONT SPAR LOWER WING ATTACH FITTING PULLED FREE OF THE WING SPAR. THE FAILURE WAS THE RESULT OF WOOD DETERIORATION IN THE LOWER ROOT END SECTION OF THE RIGHT WING FRONT SPAR.
Source: NTSB Aviation Accident Database
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