As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW UNABLE TO PRESSURIZE CABIN AFTER TAKEOFF. EMERGENCY DECLARED. OVERWEIGHT LANDING WITH SMOOTH TOUCHDOWN AT 161.4. ADJUSTED L1 DOOR LWR FLAPPER SEAL IAW AMM 52-11-00. PERFORMED PRESSURIZATION CHECK IAW AMM 21-00-05. OK FOR SERVICE. PERFORMED OVERWEIGHT INSPECTION IAW AMM 05-51-35. NO DEFECTS NOTED. OK FOR CONTINUED SERVICE.