As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DEPARTING PRESCOTT (KPRC) FOR COTTONWOOD (P52), AIRCRAFT ENGINE OIL TEMPERATURE CLIMBED TO ABOVE LIMITS, (139+) DURING DEPARTURE FROM THE DOWNWIND. PILOT TURNED BACK TO THE AIRPORT, DECLARED AN EMERGENCY, AND LANDED WITHOUT FURTHER INCIDENT AT CUTTER AVIATION.