As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT MANY CABIN LIGHTS WERE COMING ON AND OFF ON AC RT. THE F/A NOTICED A BURNING SMELL OVER ROWS 16,17 AND 18 ON AC RT. MAINT FOUND DEU-A 200RH12 INOPERATIVE AND HAD A SMELL TO IT. MAINT REMOVED AND REPLACED DEU-A 200RH12 IAW AMM 23-73-46 AND OPS CHECKED NORMAL AND THE AC WAS RETURNED TO SERVICE. (B)