What was found
ON DESCENT, CREW REPORTED A VERY STRONG ODOR OF BURNING IN FLIGHT DECK. F/A REPORTED BURNING ODOR ALSO AROUND ROW 11. SMOKE WAS NOT VISIBLE ONLY STRONG ODOR. MX INSPECTED AND FOUND EVIDENCE OF INGESTED BIRD IN NR 1 ENGINE. PERFORMED BORESCOPE AND BIRD STRIKE INSPECTION, NO DEFECTS NOTED. MX COULD NOT DUPLICATE OIL/ELECTRICAL ODOR ANYWHRE IN CABIN. PERFORMED GROUND POWER RUNS OF NR 1 AND NR 2 ENGINES WITH NO FURTHER ODOR. ACFT APPROVED FOR RETURN TO SERVICE.