What was found
FLT 2459, BDL-FLL. AFTER FULL THRUST TAKE OFF DIRTY SOCKS SMELL FOR ABOUT 5 MINUTES. SMELL CLEARED UP UNTIL AFTER LANDING, ON TAXI IN SMELL RETURNED TILL ENGINE SHUTDOWN. ( APU SYSTEM ); PERFORMED INSP OF APU AREA IAW AMM 49-20-00. NO OIL OR LEAKS FOUND. PERFORMED PACK BURN PER INFO NOTICE 2017-T015F, NO ODOR OR SMELL NOTED. MDDR CLEARED MX4 UPDATED PLACARD REMOVED.