As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTS MID CABIN LAVATORY DOOR LOCK NOT FUNCTIONING CORRECTLY. PASSENGER GOT STUCK IN THERE. MAINTENANCE REPLACED THE DOOR LOCK/LATCH ASSEMBLY PER CMM 25-43-25 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.