As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: REPEATED AFT LEFT LAVATORY BIFOLD DOOR CLOSES OVER CENTER RAILING AND STICKS CLOSED. HAD PAX STUCK FOR SEVERAL MINUTES. FLIGHT ATTANDENT HAD TO ASSIST FROM OUTSIDE TO OPEN DOOR. ADJUST TRACK ASSEMBLY AND LUBED UPPER LATCH ASSEMBLY.