As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5042, AS AIRCRAFT WAS PASSING THROUGH 9500 FT, THE LT ENGINE LOST ENGINE OIL PRESSURE, TORQUE AND RPM. ENGINE WAS SHUTDOWN BY THE AIRCREW. AIRCRAFT RETURNED TO CHARLESTON WITH NO OTHER PROBLEMS. INFLIGHT EMERGENCY WAS DECLARED AND EMERGENCY PROCEDURES WERE USED. MAINTENANCE FOUND THE NTS VALVE HELA-COIL PULLED FROM ENGINE CASE. CAUSING THE LOST OF ENGINE OIL SUPPLY. ENGINE WAS REMOVED AND REPLACED. AIRCRAFT WAS RETURNED TO SERVICE.