As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLI FLIGHT NR 2491: INTERMITTENT DEICE PRESSURE CAUTION LIGHT WHEN BOOTS WERE SELECTED. LIGHT WENT OUT WHEN THE CHECKLIST WAS RUN. MAINTENANCE C/W OPERATION OF CHECKLIST IAW AMM TASK 30-11-00-710-804 WITH NO DEFECTS NOTED AND OPERATED BOOTS NUMEROUS TIMES TO ENSURE DEICE PRESSURE CAUTION LIGHT DID NOT ILLUMINATE. LIGHT DID NOT COME ON. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.