As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE ANTI-ICE FAULT, VALVE NOT OPEN. ACFT GROUNDED. IAW AMM 30-21-51 REPLACED THE AIR INTAKE ANTI ICE VALVES. NR 2 ENGINE IDLE TEST SATISFACTORY. NO FAULTS NOTED. LEAK TEST OK. FOUND SENSE LINE ON PRSOV 2 LOOSE. SECURED THE LINE. FOUND PRSOV 1 VALVE BUTTERFLY STICKING.