What was found
INBOUND FLIGHT ATTENDANTS AND INSTRUCTOR REPORTED SMELLING A BURNING OR CHEMICAL SMELL MAKING SOME FA'S FEEL ILL ( PACKS - A320 WITH MOD. 30626/MP K6443 (ENHANCED ECS) OR A321 WITH MOD. 157080/MP K17996 (PACK FLOW SELECTOR) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) )-APPLIED TSM 05-50-00-810-831-A. PERFORMED LEVEL C REMOVAL OF CONTAMINATION OF THE ECS (PACK 2 W/ ENG 2 BLEED) IAW AMM 21-00-00. OPS CHECK GOOD. THIS CLEARS DMI 3322361-1. MOC NOTIFIED, PLACARD REMOVED.