As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
2 MINUTES AFTER TAKEOFF RECEIVED A CALL FROM FA THAT THE AFT CABIN HAD FUMES/VERY LIGHT SMOKE EMITTING FROM THE OVERHEAD VENTS. BLEEDS OPEN TAKEOFF. QRH CLEARED FUMES. NO EICAS MSGS. (FLIGHT 5402 FILED OPEN)THIS IS CURRENTLY A WORK IN PROGRESS.