As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN SMOKE LEFT SIDE ROWS 38-46 ABOUT 4 HOURS INTO FLIGHT. ODOR COMING FROM AIR SYSTEM E=EYE BALL VENTS. FOUND 3 PHASE C/B OF PASS AIR OUTLETS FAN AT 2R DOOR PANEL POPPED. REMOVED AND REPLACED PAX AIR OUTLET FAN ASSY AT FS 769, SYSTEM OPS CHECK GOOD.