As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ELECTRICAL SMELL NEAR VIDEO SYSTEM. MAINTENANCE TROUBLESHOOT CABIN AIR QUALITY. RAN BOTH ENGINES AND APU NO ODOR NOTED. INSPECTED GALLEYS AND LAVS AND CABIN AREA. REPLACED MID GALLEY COFFEEMAKER DUE TO BURNING ODOR. NO OTHER ODORS NOTED. REPLACED VIDEO CREW TERMINAL ASSEMBLY AS PRECAUTIONARY.