What was found
DURING DESCENT, ALL THREE FLIGHT ATTENDANTS REPORTED A "DIRTY SOCKS" SMELL TO BE VERY STRONG IN CABIN. UPON THEIR REQUEST, PASSENGER O2 MASKS WERE DROPPED. FLIGHT ATTENDANTS ALSO WENT ON O2. APU BLEED AIR SWITCH WAS OFF. FLIGHT LANDED AT CLT WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE ACCOMPLISHED J/C 03L00021001, "737 T/S CABIN ODOR". FOUND ODOR SOURCE TO BE RIGHT ENGINE. RIGHT ENGINE FAILED BOROSCOPE. FOUND CONTAMINATION IN HPC. REPLACED RIGHT ENGINE ASSEMBLY IAW J/C 03L50671001, "CFM56-3 ENGINE REPLACEMENT". SATISFACTORY OPS AND LEAK CHECKS ACCOMPLISHED. ALSO, REPLACED RIGHT PRIMARY AND SECONDARY HEAT CHANGERS PER J/C 03L21021002, RIGHT REHEATER PER AMM 21-51-23 AND RIGHT CONDENSER PER AMM 21-51-22. ALL O2 GENERATORS REPLACED PER AMM 35-22-31 & 35-22-11. REPACKED O2 MASKS AND ACCOMPLISHED ACTUATION TEST PER AMM 35-22-00-705-042.