As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS AT 23000 AIRCRAFT INDICATED START OF DECENT PAST 19000 RESTRICTION. OUT VOF 22000 ALTIMETER FLASHED STD AT 7000 CABIN PRESSURE WAS DUMP. MAINTENANCE REPORTS NO FAULTS ON CPC 1/2. ACCOMPLISHED TSM 21-31-00 AND 21-31-00-810-808. SAFETY VALVE NOTED CLOSED ON ECAM. IAW TSM POSSIBLE CAUSE LONG STEADY DECENT PROFILE IAW TSM 21-31-00.