As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, FLIGHT ATTENDANT REPORTED A BURNING SMELL IN THE CABIN FOLLOWED BY AN INTERMITTENT RIGHT "DUCT OVERHEAT" LIGHT ON OVERHEAD PANEL. FLIGHT 3628 - REPLACED RIGHT PACK TEMP SENSOR FOR AUTO CONTROL. OPS CHECK GOOD IAW 21-60-04.