As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#733, BOS-SFO. 'BURNT RUBBER ODOR NOTICE BY INFLIGHT CREWMEMBERS AROUND ROW 19-26. INSEAT POWER SUPPLY SYSTEM TURNED OFF. ODOR DISSIPATED AND NEVER RETURNED FOR REMAINDER OF FLIGHT. ( IN SEAT POWER SYSTEM - INDIVIDUAL SEATS OR ENTIRE SYSTEM ); REMOVED AND REPLACED POWER OUTLET UNIT AT 27C PER AMM 44-22-43 MDDR 4018125-1 UPDATED MX-4 UPDATED PLACARD REMOVED 8THR732B.'