As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS - FLT 3942 - CREW DIVERTED AIRCRAFT INTO TYS AFTER THE LEFT ENGINE WAS SHUTDOWN DUE TO LOSS OF OIL. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THE FORWARD CENTER SUMP VENT TUBE ASSEMBLE TO BE LOOSE AT THE SERVICE MANIFOLD. THE VENT TUBE ASSEMBLE WAS TIGHTENED REFERENCE ALLISON ENGINE MM 79-27-30, LEAK CHECKS WERE SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (M)