Aviation Accident Summary SEA89LA133

AMERICAN FALLS, ID, USA

Aircraft #1

N1636E

AERONCA 7AC

Analysis

THE PLT RPRTD THAT DURING FLT THE ENG LOST POWER. SUBSEQUENTLY,THE ACFT NOSED OVER DURING AN EMERGENCY LANDING IN A SOFT FIELD. RPRTDLY, AN ACCESSORY GEAR THAT DROVE A MAGNETO HAD BECOME STRIPPED AND BROKEN, CAUSING THE MAGNETO TO GET OUT OF TIME WITH THE CAM.

Probable Cause and Findings

AN ENGINE FAILURE DUE TO STRIPPED AND BROKEN TEETH ON A MAGNETO DRIVE GEAR IN THE ACCESSORY GEAR BOX. A SOFT FIELD CAUSED THE NOSE OVER DURING THE FORCED LANDING.

 

Source: NTSB Aviation Accident Database

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