As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED #1 ENGINE OIL TEMPERATURE EXCEEDANCE OF 129.5. PLACED THE #1 ENGINE TO IDLE AND EXECUTED A SUCCESSFUL PRECAUTIONARY LANDING WITH A PATIENT ON BOARD TO KROA AIRPORT. THE PATIENT WAS TRANSPORTED BY GROUND. THE MECHANIC REPLACED THE #1 ENGINE OIL COOLER BYPASS VALVE PN L792M2002102 AND UNSCHEDULED MAINTENANCE PER PRATT AND WHITNEY EMM CH. 05-50-00.