As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN CREW REPORTED A BURNING ODOR IN AREA OF ROW 4, 5, 6 RT SIDE. CREW TURNED OFF UTILITY BUSSES AND THE ODOR DISSIPATED. COULD NOT DUPLICATE WITH UTILITY BUSSES ON, RUNNING PACKS, AND CHECKING AREA WIRING. REPLACED SEAT 5CD/6CD SEAT ELECTRONIC BOXES AS A PRECAUTION.