What was found
DURING DESCENT, AROUND 20K FT, FLT ATTENDANT IN THE AFT CABIN, REPORTED AN ODOR OF DIRTY SOCKS. IDENTIFICATION OF CAUSE OF CABIN ODORS WAS PERFORMED IAW TSM 05-50-00-810-831. NO EVIDENCE OF LEAKAGE AROUND ACFT IR EVIDENCE OF BIRDSTRIKE ENGINE RUN-UP WAS PERFORMED AND NR 2 PACK WAS ISOLATED.