What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N6074E, PA-60-601P, departed Omaha, NE, enroute to centennial airport, Colorado. After departure the pilot returned to Omaha, with the left engine shut down. The aircraft landed without incident. The pilot stated to maintenance personnel that the oil temperature increased and the oil pressure decreased. The pilot shut down the engine. Maintenance personnel replaced the thermostatic valve.
As the FAA filed it
(-23) N6074E, PA-60-601P, DEPARTED OMAHA, NE, ENROUTE TO CENTENNIAL AIRPORT, COLORADO. AFTER DEPARTURE THE PILOT RETURNED TO OMAHA, WITH THE LEFT ENGINE SHUT DOWN. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE PILOT STATED TO MAINTENANCE PERSONNEL THAT THE OIL TEMPERATURE INCREASED AND THE OIL PRESSURE DECREASED. THE PILOT SHUT DOWN THE ENGINE. MAINTENANCE PERSONNEL REPLACED THE THERMOSTATIC VALVE.