What was found
BOTH F1 / F2 INFLIGHT CREW REPORT MUSTY/DIRTY SOCK ODOR EMANATING FROM MID CABIN AFT GALLEY. ( ENGINE BLEED SYS - SINGLE - ICING OK ). PERFORMED BOROSCOPE INSPECTION OF NR 2 ENG IAW 72-00-00-220-094 AND 72-00-00-220-003 OF BOTH BOOSTER AND COMPRESSOR NO OIL PUDDLING FOUND. POSSIBLE OIL STAINING ON 1ST STAGE HPC. UTILIZED FIM TASK LISTED, & AMM TASKS LISTED, FOUND COFFEE INGESTION IN SEVERAL PACK COMPONENTS. R & R LOW LIMIT BYPASS VALVE, THE AIR CYCLE MACHINE, DUAL HEAT EXCHANGE, WATER COLLECTOR AND CONDENSER/RE-HEAT ASSY. R & R RECIRC. AIR FILTERS.