As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE OIL QUANTITY LOSS INFLIGHT. FOLLOWED QRH PROCEDURES. SHUT ENGINE DOWN WHEN OIL PRESSURE LIGHT CAME ON. EMERGENCY DECLARED, AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS GROUNDED. NOTED LEFT ENGINE OIL DIFFERENTIAL PRESSURE SWITCH TUBE ASSEMBLY LEAKING. REPLACED THE LINE IAW AMM 79-36-01. LEAK CHECKED GOOD.