What was found
BUR - FUEL LEAKING FROM LEFT ENGINE WITH BOOST PUMPS ON. INSPECTED NR 1 ENGINE FOR LEAKS FROM DRAIN MAST WITH BOOST PUMPS RUNNING. NO LEAKS NOTED. GROUND RAN ENGINE WITH MULTIPLE STARTS AND STOPS TOTALING 30+ MINUTES. C/W INSPECTION. NO LEAKS NOTED. C/W FUEL AND OIL LEAK CHECK IAW CRJ 700 AMM TASK 71-00-00-790-807-A01. NO LEAKS NOTED. NO FUEL LEAKS NOTED ON ENGINE DURING INSPECTION. COULD NOT DUPLICATE. RETURNED TO SERVICE. NO PARTS REPLACED.