Primary finding
Probable cause
inadequate clearance and fretting wear of the fitting/beam attachment to the angle/top beam, due to inadequate design, which resulted in fatigue and subsequent failure of the fitting/beam attachment ear.
NTSB investigation record
Lake La-4-200· N2994P
Primary finding
inadequate clearance and fretting wear of the fitting/beam attachment to the angle/top beam, due to inadequate design, which resulted in fatigue and subsequent failure of the fitting/beam attachment ear.
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