What was found
SEA FLIGHT NR 2350: AFTER PUSH BACK, A PASSENGER AND BOTH FA'S REPORTED SMOKE LIKE ODOR IN AFT PORTION OF CABIN, ROWS 16 AND BACK TO THE GALLEY. MAINTENANCE OPERATED APU BLEED AIR. NO ODOR NOTED. GROUND RAN BOTH ENGINES FOR 10 MINUTES BLEED MAX. NO ABNORMAL ODORS NOTED. INSPECTED CABIN FOR BURN MARKS. NONE FOUND. ALL CABIN LIGHTS OPS CHECK NORMAL. NO ABNORMAL ODORS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.