As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD SQUEAL FROM SERVICE DOOR IN FLIGHT, ALL PRESS INDICATIONS NORMAL & SQUEAL WENT AWAY AT DP OF 7.1. PERFORMED VISUAL INSPECTION OF SERVICE DOOR SEAL IAW AMM 52-41-07, NO DEFECTS NOTED. PERFORMED OPERATIONS TEST OF CABIN PRESSURIZATION SYS IAW AMM 21-31-00, NO LEAKS NOTED. ACFT OK FOR SERVICE.