As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPORT OF SMOKE ODOR AT 41-42 ABC. OCCURRED WHEN COVE LIGHT CAME ON AND READING LIGHT WENT OUT. ODOR DISSIPATED AFTER A WHILE. FOUND OVERHEAD DECODER ABOVE SEAT 41ABC SHORTED, DEACTIVATED OVERHEAD DECODER. NOW ROWS 41 AND 42 ABC WITH NO RESIDING LIGHTS. REPLACED OVERHEAD ELECTRONICS UNIT.