Aviation Accident Summary MIA87LA209

SWIFTOWN, MS, USA

Aircraft #1

N7310N

AIR TRACTOR AT-301

Analysis

WHILE SPRAYING COTTON, SEVERE VIBRATION WAS FELT THROUGHOUT THE ACFT & THE PLT ELECTED A FORCED LDG. DURING THE FLARE, THE THROTTLE WAS ADVANCED TO RAISE THE NOSE, & THE PLT DISCOVERED THE ENG HAD TOTALLY FAILED. THE ACFT FLIPPED INVERTED ON TOUCH DOWN. AN EXAM OF THE ENG REVEALED THAT THE CRANKSHAFT ASSY, P/N 270458, HAD FAILED AT THE THROUGH BOLT LOCATION OF THE FRONT CRANKSHAFT CHEEK.

 

Source: NTSB Aviation Accident Database

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