What was found
SUPPLEMENTAL PACK 1 OVHT DISPLAYED ON EICAS. MESSAGE FOLLOWED AFTER STRANGE SMELL COMING IN COCKPIT WHILE PACKS ON.-C/A-DEFERRED #1 PACK,PERFORMED GVI OF #1 PACK AND CONFIRMED IS SEIZED UP (NOT COMING ON) CAUSING THE HOT AIR SMELL REPORTED BY CREW. PREVIOUS TROUBLESHOOTING STATED ACM #1 SEIZED. REMOVED AND REPLACED LH ACM, CONDENSER/MIXER AND RAM AIR CHECK VALVE(NRWC 820-SGF-03423), OPC GOOD IAW EO-EM-2100-048 IN CONJUNTION WITH ETN-EM-21-062. MEL ITEM RESTORED