What was found
DOOR LEAK AT 3L-R ACCOMPANIED BY HIGH PITCHED SQUEAL. PRESSURIZED TO 4.0 AND ON DESCEND BETWEEN 3.5 TO 3.0 HAD LOUD SQUEAL FROM OUTFLOW VALVE AREA. AMT IN CABIN STATED NOISE WAS VERY LOUD. REPLACED OUTFLOW VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DOOR LEAK AT 3L-R ACCOMPANIED BY HIGH PITCHED SQUEAL. PRESSURIZED TO 4.0 AND ON DESCEND BETWEEN 3.5 TO 3.0 HAD LOUD SQUEAL FROM OUTFLOW VALVE AREA. AMT IN CABIN STATED NOISE WAS VERY LOUD. REPLACED OUTFLOW VALVE.