As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 2015 - AFTER TAKEOFF, FLIGHT ATTENDANT REPORTED A STRONG BURNING SMELL IN COACH CABIN. BURNING SMELL DISSIPATED ALMOST IMMEDIATELY AND DID NOT REOCCUR. FLIGHT CONTINUED TO ORD WITHOUT FURTHER INCIDENT. AS A PRECAUTIONARY, MAINTENANCE REMOVED AND REPLACED COALESCER BAGS AND PERFORMED PACK BURN OUT PER THE MM. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)