As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - ETOPS SIGNIFICANT SYSTEM - ENCOUNTERED ICING CONDITIONS ECAM DIRECTED US TO TURN ON WING ANTI-ICE. AFTER APPROX 2 MINUTES OBSERVED A ICE L AND R WING HI PR ECAM AND ASSOCIATED AMBER TRIANGLE AND AMBER "ANTI ICE" DEPICTED ON BLEED PAGE. RECYCLED WING ANTI-ICE PB AND ECAM RETURNED. TURNED OFF WING ANTI-ICE PB. ECAM DISAPPEARED WITH PB OFF. PB LEFT IN OFF POSITION. REMOVED AND REPLACED LEFT WING ANTI-ICE VALVE (INBOARD) PER AMM 30-11-00-810-A OPS CHECK NORMAL. A/C OK FOR SVC.