What was found
OVERHEAD READING LIGHT ROW 26ABC OVERHEATED CAUSING BURNING SMELL IN CABIN. DEADHEADING FLT CREW REMOVED BULB AND SMELL DISSIPATED. THE REMOVED BULB IS IN COCKPIT, MAINT TO RETRIEVE BULB AND VERIFY PART NUMBER. FLT ATTENDANT REPORTED AFT CABIN FWD LAV DOME LIGHT, THAT CAUSED OVERHEAD SMELL AT 26ABC. THE 26ABC READING LIGHTS NEVER REMOVED. REPLACED LAV DOME LIGHT 1591 REF IPC33-26-52-010, TESTED GOOD. PCN 028-4739. INFO ONLY, FOUND WRONG BULB WAS INSTALLED, AND FLT CREWS REMOVED A BAD ELECTRICAL SMELL HEADSET AT 26ABC SEAT.