As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX + FA REPORT A BURNING + EXHAUST ODOR FROM ROW 27 TO AFT GALLEY. CRUISE FLIGHT AT 390 WITH NO POWER CHANGES. PACK 2 WAS ID AND ISOLATED OFF. ODOR SEEMED TO DISSIPATE SUBSEQUENTLY. BURNING WIRE OR RUBBER ODOR.-PERFOMRED TSM 05-50-00-810-831-A ISOLATED PACKS FOUND PACK 2 TO BE SOURCE OF ODOR.