As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TRANSFERRING BLEEDS TO APU, THERE WAS A FAINT ODOR IN THE COCKPIT, ENGINES AT IDLE, (SMOKE TOILET) MESSAGE ON ED 1. MESSAGE CLEARED ON RUNWAY. FA REPORTS SMOKE AT CEILING AT ROW 11 AND 12. REPORTS SMOKE AT CEILING AT ROW 11 AND 12 REMOVED AND REPLACED APU ASSEMBLY IAW 49-10-00. OPS LEAK CHECK GOOD. (K)