As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED LEFT ENGINE OIL STRAINER CLOG LIGHT ILLUMINATED DURING CLIMB AND OIL TEMPERATURE STARTED TO RISE. EMERGENCY DECLARED RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED DIFFERENTIAL PRESSURE SWITCH. SYSTEM GROUND CHECKED NORMAL OPERATION.