As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3048 - AFTER TAKEOFF FROM DTW, THE RIGHT OIL TEMPERATURE DROPPED TO 40 DEGREES CELSIUS. ALL OTHER ENGINE INDICATIONS WERE NORMAL. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. AS A PRECAUTION, THE RIGHT OIL TEMP BULB WAS REPLACED. ALL CHECKS SATISFACTORY. (M)