As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DEPARTURE FROM MSP THE NUMBER THREE ENGINE OVERHEAT LIGHT ILLUMINATED. PERFORMED COM PROCEDURES THE LIGHT EXTINGUISHED. CLIMB TO 25,000 WAS RESUMED, THE CABIN PRESSURE CONTINUED TO CLIMB AT 400 FPM IN BOTH MANUAL AND AUTO MODE. RETURNED TO MSP, REMOVED AND REPLACED THE NUMBER THREE STRUT OVERHEAT DETECTOR. OPERATIONAL CHECKS GOOD.