What was found
AT ABOUT 200-300 FT AGL ON TAKEOFF, TOWER INFORMED SAW SMOKE COMING FROM ONE ENG. DEPARTED RUNWAY 12 AT KTUS WHICH PUT RT ENG ON TOWER SIDE, BUT TOWER COULD NOT TELL WHICH ENG SMOKE COMING FROM. THEY ALSO DID NOT DESCRIBE THE SMOKE IN ANY MANNER. RETURNED TO THE FIELD. DURING RETURN, ALL ENG & BLEED INDICATIONS NORMAL. DID NOT RECEIVE ANY SMOKE, OVERHEAT OR FIRE MESSAGES. NO SMOKE ENTERED CABIN OR COCKPIT. PERFORMED MULTIPLE ENG RUNS, INCLUDING HIGH POWER RUNS OF LT & RT ENGS. NO DEFECTS DURING RUNS. IAW AMM 71-00-00-866-806. NO FURTHER TROUBLESHOOTING RECOMMENDATIONS, CONTINUED OPS & MONITOR. PERFORMED FADEC NVM DOWNLOADS IAW AMM 45-47-00-970-810 AND ROUTED TO CRC FOR ANALYSIS. NO DEFECTS REPORTED.