As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT LOUD WIND NOISE AROUND ENTIRE MAIN CABIN DOOR. AIRCRAFT STARTED TO DEPRESSURIZE. DESCENT PERFORMED. RTF. NORMAL LANDING. (FLT 5772) CLOSED REMOVED AND REPLACED MCD SEAL AND PRESSURIZED AIRCRAFT. OPS CHECKS, GOOD, NO LEAKS NOTED IAW AMM.