As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUA INFLIGHT T1036/05JAN - LOST CABIN PRESSURE AND LIGHT SMOKE IN CABIN. OXYGEN MASKS WERE DEPLOYED. RETURNED TO AUA AND LANDED WITHOUT INCIDENT. SMOKE IN CABIN CLEARED PRIOR TO LANDING. REPLACED RIGHT ENGINE PRESSURE REGULATING SHUT OFF VALVE. SYSTEM GROUND CHECKED NORMAL OPERATION.