As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT OF DTW AFTER TURNING ON END AND WING AND TAIL ANTI-ICE CAPT NOTICED 31 ENGINE POWER WAS RESTRICTED BY FADEC DUE TO 613 DEGREE MCT BEING REACHED. THEREFORE RATED THRUST WAS NOT ACHEIVEABLE. NO CHANGE IN CONDITION WHEN ICE WAS TURNED OFF. AIR TURNBACK. MAINTENANCE REPLACED NR 1 ENGINE BLEED BAND. OPS CHECK GOOD.