What was found
WHILE PERFORMING EO WC E50-24-0002_2-JIC (EMBRAER PHENOM EXTERNAL POWER RECEPTACLE HARDWARE INSPECTION, TECH REPORTED THE BACK OF THE POSITIVE TERMINAL ON THE GPU CONNECTOR SHOWS SIGNS OF BURNING AND ARCING.//CORRECTIVE ACTION// REMOVED AND REPLACED ELECTRICAL CABLES (W311 & W310) AT GPU RECEPTACLE IAW EMB505 AMM 24-65-01 & 24-41-01. PERFORMED OPS CHECK OF ENERGIZATION OF THE AIRCRAFT WITH AN EXTERNAL DC POWER SUPPLY IAW EMB505 AMM 24-41-00 AND FOUND SYSTEM WORKING PROPERLY AT THIS TIME.