As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT RETURNED TO THE FIELD DUE TO THE COMMUNICATION DOOR FAILING TO SEAL. MAINTENANCE INSPECTED AND RE-SEALED THE COMMUNICATION DOOR IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 51-22-00. OPERATIONAL CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.