What was found
GRND PERSONNEL REPORTED WHITE SMOKE OUT OF THE LEFT ENGINE WHILE TAXING TO THE GATE. ACCOMPLISHED GENERAL VISUAL INSPECTION FOR ANY FUEL OR OIL LEAKS AND NONE FOUND. OIL QTY IS NORMAL, SUSPECT RESIDUAL FUEL IN BURNER CAN AREA BEING THE CAUSE. ACCOMPLISHED 3 MINUTE IDLE RUN AND NO FURTHER SMOKE/VAPOR NOTED. REF AMM 79-00-00-810-829-A. ACCOMPLISHED GENERAL VISUAL INSPECTION FOR ANY FUEL OR OIL LEAKS AND NONE FOUND. OIL QTY IS NORMAL, SUSPECT RESIDUAL FUEL IN BURNER CAN AREA BEING THE CAUSE. ACCOMPLISHED 3 MINUTE IDLE RUN AND NO FURTHER SMOKE/VAPOR NOTED.