As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING THRU 12,000 FT WING ANTI ICE WAS SELECTED IN ICING CONDITIONS. L VALVE AMBER LIGHT ILLUMINATED. DESELECTED WING ANTI ICE TO AVOID ASYM ANTIICING. GROUNDED - YES. PERFORMED AN OPS CHECK ON L WING ANTI ICE, OP CHK NORMAL.. DETERMINED TO BE AN INTERMITTENT FAULT REF IFIM TASK 30-11-00-810-808. NO HISTORY 90 DAYS.