Aviation Accident Summary FTW90LA056

CROCKETT, TX, USA

Aircraft #1

N6303D

CESSNA 170

Analysis

ON TOUCHDOWN, THE RIGHT MAIN LANDING GEAR AXLE BROKE AND THE WHEEL SEPARATED. SUBSEQUENTLY, THE AIRPLANE VEERED RIGHT, WHEN THE STRUT STUB DUG INTO THE GROUND. POST-ACCIDENT EXAMINATION OF THE FRACTURE SURFACES OF THE FAILED AXLE REVEALED EVIDENCE OF A PRE-EXISTING CRACK ALONG THE BOTTOM 1/3 OF THE AXLE CIRCUMFERENCE. THE REMAINDER OF THE FRACTURE APPEARED TO BE FRESH.

Probable Cause and Findings

THE FAILURE OF THE MAIN LANDING GEAR AXLE DUE TO FATIGUE WHICH LED TO A LOSS OF CONTROL AFTER TOUCHDOWN.

 

Source: NTSB Aviation Accident Database

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