As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROBLEM OCCURED 7 HRS INTO FLT, A SMOKE ODOR WAS OBSERVED COMING FROM THE CAPTS SIDE OF THE ACFT NEAR ROW 24. C/B' S WERE NORMAL. THE F/A WERE DIRECTED TO SHUT OFF POWER TO THE MID GALLEY AND PAX ENTERTAINMENT SYSTEM. THE ODOR DISSIPATED SHORTLY THEREAFTER. REPLACED SEB AT SEAT 22AB.