What was found
RIGHT CROSS TIE BUS WOULD NOT POWER ON (POWERS THE MFD, NAV LIGHTS, RUDDER TRIM, RH ALT FIELD). FOUND LOOSE TERMINAL CONNECTIONS AT THE THREE 50 AMP SUPPLY CIRCUIT BREAKERS (BATTERY, LH ALT AND RH ALT) LOCATED ON THE COPILOTS CIRCUIT BREAKER PANEL. THE FEEDER CABLE RING TERMINALS HAVE 1/4" HOLES AND THE CIRCUIT BREAKERS ARE #8 SCREWS. THE SIZE DIFFERENCE DOES NOT ALLOW THE CONNECTION TO BE SECURED PROPERLY. A LOOSE WIRING CONNECTION CAN CAUSE ARCHING, SMOKE AND POSSIBLY AN IN-FLIGHT FIRE. A PROPERLY SIZED RING TERMINAL OR REDUCER BUSHING WOULD REMEDY THIS. NO RECORD OF MODIFICATION HAS BEEN FOUND SO I SUSPECT THE WRONG RING TERMINALS WERE INSTALLED BY THE MANUFACTURER. PICTURES ARE AVAILABLE, BUT NO MEANS TO INCLUDE WITH THIS FORM.