As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ELECTRICAL SMELL AROUND ROW 12 ON APPROACH. ACP'D OPENED UP CEILING PANELS, PCU PANELS, FROM ROWS 10 THRU 20. NO EVIDENCE OF ANYTHING RAN BOTH ENGS, CYCLED PACKS AND RECIRC FANS. NO EVIDENCE OF ELECTRICAL ODOR. ACFT POWERED UP FOR SEVERAL HOURS, NO ODOR. CONFERRED WITH SAMC.