What was found
AFTER TAKEOFF FLIGHT ATTENDANT REPORTED STRONG BURNING ODOR IN CABIN. ACCOMPLISHED QRH AND SWITCHED OFF LEFT AND RIGHT RECIRC FANS. ODOR FADED AWAY DURING RETURN TO AIRPORT AND LANDING. PERFORMED INSPECTION/CHECK PER AMM 05-51-56, PG 201. CONFIRMED NO PROBLEMS BY PERFORMING AMM 21-00-01 COULD NOT DUPLICATE ODOR IN CABIN. NO SOURCE OF ODOR ON AIRCRAFT. OK TO CONTINUE. SUSPECT FUMES FROM OTHER AIRCRAFT ON TAXIWAY INGESTED.