Aviation Accident Summaries

Aviation Accident Summary SEA87LA157

NORTH PLAINS, OR, USA

Aircraft #1

N222WY

BELLANCA 7GCBC

Analysis

THE PLT RPRTD THAT DRG A X-WIND LNDG, THE ACFT TOUCHED DOWN ON THE RGT MAIN GEAR, THEN AFTER ROLLING APRX 50 TO 100 FT, THE LEFT MAIN GEAR TOUCHED DOWN. AS THE LEFT WHEEL TOUCHED DOWN, THE LEFT AXLE FAILED, PITCHING THE ACFT ON ITS NOSE. THE ACFT THEN SKIDDED ON ITS NOSE FOR ANOTHER 75 TO 100 FT. AN EXAM OF THE AXLE REVEALED A FATIGUE CRACK HAD PENETRATED ABOUT 50% OF ITS CROSS SECTION BEFORE FINAL OVERSTRESS SEPARATION. THERE WERE MULTIPLE ORIGINS OF THE CRACK AT THE EDGE OF A CIRCUMFERENTIAL WELD.

 

Source: NTSB Aviation Accident Database

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