Aviation Accident Summaries

Aviation Accident Summary MKC89LA184

CARLISLE, MN, USA

Aircraft #1

N812SS

DORMOY TKD BATHTUB

Analysis

THE PLT SAID THAT DURING FLT, THE ENG OF THE HOME BUILT ACFT LOST POWER OVER ROUGH TERRAIN. DURING AN EMERGENCY LANDING, THE ACFT ENCOUNTERED TALL GRASS, ROCKS, GOPHER MOUNDS & DOWNWARD SLOPING TERRAIN, AND WAS DAMAGED. AN INVESTIGATION REVEALED THE MIXTURE CONTROL CABLE (PIANO WIRE) HAD FAILED AT A BOLT WHERE IT ATTACHED TO THE MIXTURE CONTROL LEVER. THIS WAS THE 2ND FAILURE DURING THE FLT FROM FARGO, ND TO FERGUS FALLS, MN. THE 1ST FAILURE OCCURRED ABOUT 15 TO 20 MIN INTO THE FLT. THE PLT MADE A SUCCESSFUL FORCED LANDING AFTER THE 1ST FAILURE, THEN BORROWED SOME TOOLS & REPAIRED THE CABLE. THE 2ND FAILURE OCCURRED ABOUT 10 TO 15 MIN AFTER HE TOOK OFF TO CONTINUE THE FLT.

Probable Cause and Findings

FAILURE OF THE MIXTURE CONTROL CABLE AND INADEQUATE MAINTENANCE (REPAIR) BY THE PILOT. THE TERRAIN CONDITIONS WERE CONSIDERED TO BE CONTRIBUTING FACTORS.

 

Source: NTSB Aviation Accident Database

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