As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG HIGH OIL TEMP 164C IN FLIGHT. VARIABLE WITH THROTTLE. AFTER SHUT DOWN RIGHT ENGINE 81C AND LEFT 145C. (RETURN FROM FLIGHT). REMOVED AND INSTALLED LEFT ENGINE OIL LEVEL/TEMPERATURE SENSOR IAW CRJ 550 AMM 79-31-01. PERFORMED HIGH POWER RUN IAW CRJ 550 AMM 71-00-00. ENGINE OIL TEMPERATURE WITHIN LIMITS AND NO LEAKS REPORTED.