As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: NA ATB EMERGENCY DECLARED, NO EQUIP USED- LANDING UNEVENTFUL. DURING CLIMB OUT ZTIME GOT LEVEL 1 CABIN RATE MESSAGE APPROXIMATELY 12000' MESSAGE NOTICED CAB ALT 8000 FT CLIMBING REQUIRED LEVEL OFF AT 17500 FT CAB ALT ABOVE 1000 MAX CABIN ALT WAS 12000 FT WENT TO MANUAL & VERIFIED OUTFLOW VALVE CLOSED, NO EFFECT. REMOVED AND REPLACED CABIN PRESSURE OUTFLOW VALVE MOTOR, IAW AMM 21-31-21. FUNCTIONAL TEST GOOD.