As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THRU 18,000 FT CABIN RATE CLIMBED 3000 FT PER MINUTE AND CABIN ALT CLIMED TO OVER 8000 FT. F/A COMPLAINED OF LOUD SQUEAL COMING FROM THE L2 DOOR. AN EMERGENCY WAS NOT DECLARED AND ACFT LANDED WITHOUT INCIDENT. MX INSPECTED AND FOUND DEFECT IN CARGO DOOR SEAL. MX R & R AFT CARGO DOOR SEAL IAW AMM AND ACFT OPS CHECKED GOOD.