As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2289 AIRCRAFT RETURNED TO FIELD DUE TO, ON INITIAL CLIMB ITT OBSERVED AT 848 DEGREES WITH RED NEEDLE ON NR 1 ENGINE. FIELD ELEVATION 4453, TEMPERATURE 0 DEGREES AND ALTIMETER 30.12. AIRCRAFT LANDED SAFELY. INTEROGATED CDS AND FOUND NR 1 ENGINE ITT 855.4 FOR 24 SECONDS. THIS IS WITHIN LIMITS IAW Q400 AMM 05-11-00. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.