As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PACK 2 HAD A BURNING SMELL ON TAKEOFF AND CRUISE. SWITCHED TO PACK 1 AND SMELL WENT AWAY. PLACED ON MEL IAW A300 MEL 21-51-01-0-1. M791784 ASSIGNED PLACARD INSTALLED. REPLACED AIR COND PACK WATER SOP COURIER BAGS 0868726, OPS CHECK GOOD REF MM 21-51-16. THIS CLEARS M791784, PLACAARD REMOVED. OPS CHECK REF MM 21-11-00.