As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORTED ODD SMELL AROUND ROWS 8 TO 12 ON DESCENT. LIKE BURNING RUBBER. NO SMOKE NOTED. GROUNDED - YES. FOUND BURNED BALLAST LT BET ROW 9 & 10, R&R BALLAST UNIT BETWEEN ROW 9 & 10 LT SIDE PER AMM 33-21-11. NO ODD SMELL NOTED AT THIS TIME.