What was found
FLT#1759, JFK-KIN. 'AFTER SHUTDOWN THE #4 IN FLIGHT CREW MEMBER REPORTED A MUSTY SMELL FROM VENTILATION SYSTEM ON FINAL DESCENT; REF LOGPAGE 3790470 ITEMS 1 (REMOVED AND REPLACED OZONE CONVERTER PER AMM 21-58-42. LEAK CHECK GOOD ) AND 2 (ACCOMPLISHED SETION B2 OF TSI FOR ODOR EVENT PACK # 2 BURN. RESOLVED, NO ODOR OR OIL SMELL NOTED. A/C OK FOR CONTINUED SVC AT THIS TIME REF AMM 21-00-00-615-803-A ECS LEVEL B DECONTAMINATION) IN CONNECTION WITH TSI # 537224 DEFECT 52754. THIS CLEARS MDDR 537214 MX-4 UPDATED AND PLACARD REMOVED MCC NOTIFIED.