As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE MZT - FLIGHT ATTENDANTS REPORT L1 DOOR WILL NOT SEAL AND NOISE WAS UNBEARABLE. ATTEMPTED TO SEAL DOOR MANUALLY, UNABLE. CLIMBED TO FL 260 DOOR WOULD NOT SEAL NOISE DID NOT ALLOW F/A'S TO HEAR INTERPHONE. PRESSURE APPEARED NORMAL AT ALL TIMES. RETURNED TO MZT, INSPECTED L1 DOOR FOUND HINGE SEAL DISLODGED. SECURED HINGE SEAL REF AMM 52 00 00. PRESS AIRCRAFT, NO LEAKS NOTED. AIRCRAFT OK FOR SERVICE.