What was found
OAK - DESCENT INTO SLC TURNED ON AIRFOIL A/I AT APPROXIMATELY FL 23.0, CABIN RATE OF CLIMB WENT APPROX FULL UP WITH OUTFLOW VALVE FULL CLOSED. TURNED OFF WING A/I AND CABIN PRESSURE RETURNED TO NORMAL. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OAK - DESCENT INTO SLC TURNED ON AIRFOIL A/I AT APPROXIMATELY FL 23.0, CABIN RATE OF CLIMB WENT APPROX FULL UP WITH OUTFLOW VALVE FULL CLOSED. TURNED OFF WING A/I AND CABIN PRESSURE RETURNED TO NORMAL. (M)