What was found
DURING INITIAL CLIMB AT APPROX 200FT AGL THE LT AC BUSS FAILED, CREW TRIED RESET, AND THIS DIDN'T WORK, TRANSFER WAS SELECTED AND WORKED, CREW RETURNED TO STATION. FOUND STATIC INVERTER FAILED, REPLACED UNIT AND DURING SUBSEQUENT RUNS, FOUND INVERTER COOLING FAN HAD ALSO FAILED, REPLACED COOLING FAN, SYSTEM OPS CK GOOD DURING INTIAL 45 MINUTE GROUND OPS CK. ALSO FOUND WIRE DAMAGED BY SCREW CONTACTING WIRE GOING TO THE NR 1 INVERTER POWER SELECT, CAUSING A SECONDARY INTERMITTENT FAULT. WIRE WAS REPAIRED AND SCREW REPLACED, SYSTEM OPS CK GOOD.