PROSPECT, KY, USA
N5115U
CESSNA 172RG
THE PLT WAS RETURNING TO HIS DEPARTURE POINT DUE TO ENCOUNTERING ROUGH WX. WHILE DESCENDING TO 4,000 FT FOR AN ILS APPROACH THE PLT EXPERIENCED A TOTAL ELECTRICAL FAILURE. THE PLT ELECTED TO DESCEND TO VFR CONDITIONS & BROKE OUT ABOUT 100 FT AGL. THE PLT LANDED IN AN OPEN FIELD, STRUCK A DITCH & OVERTURNED. EXAMINATION OF THE ELECTRICAL SYSTEM REVEALED ONE ALTERNATOR BRUSH COMPLETELY WORN WITH EVIDENCE OF ROTATIONAL GRINDING ON THE COMMUTATOR BARS.
Source: NTSB Aviation Accident Database
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