What was found
VERY LOUD NOISE FROM DOOR 1L AFTER TAKEOFF. RETURNED TO DEN. *S/D* FOUND UPPER HINGE CUTOUT SEAL NOT FITTING CORRECTLY. REPLACED SEALS AND CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
VERY LOUD NOISE FROM DOOR 1L AFTER TAKEOFF. RETURNED TO DEN. *S/D* FOUND UPPER HINGE CUTOUT SEAL NOT FITTING CORRECTLY. REPLACED SEALS AND CHECKED GOOD.