What was found
(AIRCRAFT NOT GROUNDED) UPON DESCENT INTO HUMID AIR AT APPROX 8,000 FEET, WE HAD A STRONG DIRTY SOCK MUSTY SMELL. WITH PACK #1 OFF THE SMELL QUICKLY DISSAPATED. AT THE GATE WITH APU AIR AND PACK 2 ONLY, WE HAD NO ODORS, CORUSON FORM SUBMITTED / PERFORMED T/C A32X-21-000-001 COULD NOT REPRODUCE SMELL AT THIS TIME. A/C GOOD FOR SERVICE. PERFORMED T/C A32X-21-000-002. SEE TASK 21-000-003 ON W/O 529104 FOR WORK PERFORMED ON REMOVAL OF CONTAMINATION. THIS CLEARS MEL 49-10-01A MDDR 218215, INOP PLACARDS REMOVED.