As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT FA REPORTS ROW 40 INTERMITENT ODOR OF BURNED WIRES OR ELECTRICAL BURNING. NO SMOKE PRESENT. FOLLOW TSM 05-50-00-810-831-A ID AS LEVEL A, TYPE 10 INSP AFT CABIN FOR BURNT BALLAST AND OTHER ITEMS THAT CAN CAUSE THE ODOR. COULD NOT DUPLICATE THE ODOR. OK TO CONT SERVICE. SUSPECT PAX USED A VAPE.