As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, LT ENG POWER FLUCTUATED & ROLLED BACK 10 PERCENT 3 TIMES. AFTER THE THIRD ROLL BACK, FAN DAMAGE CAS MSG ILLUMINATED. ACFT LANDED SAFELY & NO ENG DAMAGE WAS NOTED. REPLACED THE LT ENGINE B SYS FADEC. SYS OPERATIONAL CHECKS WERE FOUND SATISFACTORY.