What was found
ON START-UP, PILOT REPORTED SEVERAL ENVIRONMENTAL AND DE-ICE SYSTEM CIRCUIT BREAKERS 'POPPED'. INVESTIGATION REVEALED WIRE BUNDLES AT PLUGS P461 AND P462, BURNED AND MELTED. FURTHER INVESTIGATION REVEALED SHORTED WIRES. INVESTIGATION REVEALED SHORTED WIRES AT LT ENGINE DE-ICE DIVERTER MOTOR PLUG AND SHORTED/MELTED WIRES AT RT ENGINE INLET LIP PLUG. ALSO, SOME WIRES MELTED BEHIND INSTRUMENT PANEL.