As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, NR 2 ENGINE ANTI-ICE VALVE STUCK IN TRANSIT-BRIGHT BLUE LIGHT ON OVERHEAD AND AMBER ANTI ICE ON ENGINE PANEL. MOVED THROTTLES TO 40 CYCLED SWITCH ON-DIM BLUE AND GREEN ANTI ICE LIGHTS THEN SWITCH OFF AND BRIGHT BLUE/AMBER AGAIN. TRIED THREE TIMES. ACFT GROUNDED. REF FIM TASK 30-21, TASK 804, ALL STEPS A THRU E DONE ALL TEST PASS. IAW STEP E. 3. B. THIS WAS AN INTERMITTENT FAULT.