As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL APPROACH NOTICED STRONG ELECTRIAL BURNING ODOR UPON SELECTING FLAPS DOWN. FOUND CENTER FWD BACKGROUND LIGHTING DIMMER/TRANSFORMER EXTREMELY HOT CB T137, PULLED AND COLLARED DMI PER 33-1 DMI 469. REMOVED AND REPLACED INSTRUMENT LIGHT DIMMER AND CTR INSTRUMENT LIGHT RHEOSTAT.