As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD HIGH PITCHED SQUEAL COMING FROM FORWARD ENTRY DOOR. STARTED ABOVE 2 PSI. FOUND BROKEN HINGE PIN ASSY. REPLACED ASSY AND PRESSURIZED AIRCRAFT TO 7.6 PSI. NO NOISE NOTED UPON CHECK. ALSO CLEANED DOOR SEALS AND HINGE SEAT. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (X)