What was found
OIL COOLER CAUTION PANEL LIGHT CAME ON DURING FLIGHT. ENGAGED SECONDARY OIL COOLER SYS & RETURNED TO BASE IAW EMER PROCEDURES IN ROTOR FLIGHT CRAFT MANUAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OIL COOLER CAUTION PANEL LIGHT CAME ON DURING FLIGHT. ENGAGED SECONDARY OIL COOLER SYS & RETURNED TO BASE IAW EMER PROCEDURES IN ROTOR FLIGHT CRAFT MANUAL.