What was found
ON TAKE OFF, A LOUD THUMP WAS HEARD AND THE AC PULLED LT. GEAR WAS LEFT DOWN & RETURN TO LAND. ON LAND EVERYTHING SEEMED NORMAL AIRCRAFT STEERED STRAIGHT AND WITH NO PULL. NO VIBRATION OF ANY SORT. NO TIRES BLOWN. AC IN WORK FOR FUTHER TROUBLESHOOTING PERFORMED WALK AROUND INSP NO EXT DAMAGE FOUND, MOVED ALL FLT CTRLS NO DAMAGE FOUND. NEEDS MORE TROUBLESHOOTING PERF FLT CONTROL TEST PER AIRBUS 300 MM 27-00-00-5. FND, NO FAULT, NEEDS MORE TROUBLESHOOTING.