As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT AND RT WING A-ICE CAUTION ON CLIMB OUT POWER AT T/O THRUST. C/W QRH MSG'S LEARED. WITH A-ICE IN STANDBY MODE. ON APROACH RECEIVED LT AND RT WING A-ICE CAUTION IN STANDBY MODE. WITH POWER GREATER THAN 85 PERCENT N2 UNABLE TO CLEAR MESSAGE BY INCREASING POWER, GREEN A-ICE ON MSG WAS INTERMITTENT. DIVERTED DUE TO ICING CONDITIONS.