What was found
WITH TEMP IN AUTO MODE USING NO.2 PACK ONLY CREW EXPERIENCED A SMOKE SMELL IN THE COCKPIT. CONFIRMED NO.2 PACK WAS ORIGIN OF SMELL. TROUBLESHOOT REFERING TO FIM 21-20-00-810-801A BAD RATTLING NOISE COMING FROM #2 ACM WHILE RUNNING AND SMOKE IN COCKPIT SUSPECT #2 ACM FAILURE END OF TROUBLE SHOOTING SEE LOG PAGE 275375-1 FOR REPAIR ACTION TAKENR&R'D #200 PACK ACM IAW AMM 21-51-03 RAN PACK #2 HOT AND FULL COLD. OPS CHECK GOOD.