As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 5802920) ELECTRICAL FUME NOTED @ ROW 20 ON TAXI OUT OF KTPA. RETURNED TO GATE. FOUND BROKEN WIRES ON LIGHT OVERHEAD OF LUGGAGE COMPARTMENT AROUND ROW 18. R/R LIGHT ASSY. IAW B737 AMM 33-22, ALL OPS NORMAL. #9. PERFORMED EMERGENCY EXIT HATCH HEATER TEST IAW B737 AMM 21-45, ALL OPS NORMAL.