As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3322 REPORTED CLIMB TO FL330 FROM FL270 CLIMBING TROUGH FL 31.6 RECEIVED CAB PR SAFETY VALVE OPEN ECAM MSG. AP@8.7 DESCENDED TO FL 29.0 ECAM CLEARED. CORRECTIVE ACTION: OPS TEST OF CAB SAFETY VALVE C/O. LOAD 16 ACMS REPORT SHOWS MAX DIF PRESS AT 8,7 PSI. CPC#1 AND #2 TESTED. NO FAULTS FOUND. (4659588)