As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AMA INFLIGHT SAN ORD - CREW REPORTED NUMBER ONE ENGINE OIL PRESSURE LOSS. CREW SHUT DOWN NUMBER ONE ENGINE. SINGLE ENGINE TIME 17 MINUTES. LANDED AMA WITHOUT INCIDENT. REPLACED NUMBER ONE ENGINE DUE TO OIL PRESSURE LOSS. SYSTEM GROUND CHECKED NORMAL OPERATION.