What was found
FLT 401, BOS-MSY. DIRTY SOCK ODOR ON DESCENT FIRST AT 17000 FEW MINUTES STRONGER MODERATE AT ABOUT 10000 ALL THE WAY TO LANDING TWO F/A'S ALSO SMELLED IT IN FWD CABIN TURNED PACK 1 OFF ON FINAL APPCH ODOR REPORTING FORM COMPLETED; COMPILED WITH INFO NOTICE 2017 T015I REF SECTION E. INSPECTIED APU FOR OIL LEAKS AND BOTH ENGINES FOR OBVIOUS LEAKS. NONE FOUND. ODOR ISOLATED TO PACK#1 SEE L/P 3186178 FOR MEL OF PACK# 1 A/C OK FOR SERVICE