As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE AIRCRAFT ARRIVED AT THE STATION WITH THE MID LAVATORY SERVICING ACCESS DOOR MISSING. THE AIRCRAFT WAS DISPATCHED UNDER CDL AND A NEW DOOR WAS INSTALLED AT THE MAIN BASE. THE LAVATORY SYSTEM WAS CHECKED SERVICEABLE (NO LEAK). SUSPECT PANEL NOT PROPERLY LATCHED AT THE PREVIOUS STATION.