As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAVATORY RT DRAIN FITTING MISSING REQUIRED GASKET & SEVERAL ATTACH BOLTS ARE BROKEN WITH REMAINING PIECES STILL IN LAVATORY FLOOR. THIS CONDITION WAS PRESENT AT LAVATORY INSTALLATION & ATTACH SCREWS WERE MODIFIED, SHORTENED, TO ALLOW INSTALLATION. IAW IPC 38-31-51-052D DETAIL E, RESTORED SCREW HOLES TO NORMAL, INSTALLED GASKET & JUNCTION PLATE.