What was found
AFTER TAKEOFF, WHEN NR 1 PACK IS TURNED ON WITH NR 1 ENG PANEL SUPPLING AIR, EXPERIENCED BURNING SMELL. TURNED PACK OFF FOR REMAINDER OF FLT. OPERATED WITH NR 2 & 3 PACK. OCCURRED WITH PACK NR 1 IN AUTO + MIX IN FULL HOT ON GROUND WITH PACK NR 1 IN MAN FULL COLD + MIX IN FULL COLD. PACK WAS OK. TRIM AIR OFF BOTH TIMES. DEFERRED NR 1 PACK IAW DC-10 MEL 21-1 CAT C CONTROL NR C97832117266 PLACARD INSTALLED. DUE DATE JULY 2, 00 (CLOSED 6/22 KDAY). REMOVED AND REPLACED NR 1 PACK COALESANT BAG PER M/M 21-54, SYSTEM LEAK AND OPS CK GOOD AT THIS TIME. THIS CLEARS DMI NR C9783211-7266.