As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEICE PRESS CAUTION IN CRUISE RAN CHECKLIST, WENT AWAY. DEICE PRESS CAUTION CAME ON INTERMITTENTLY TWICE AND WENT OFF. BOOT STOP WORKING IN SLOW AND FAST, WORKED ON MANUAL. DIVERTED. REMOVED FROM SERVICE. PERFORMED GVI OF ALL DEICE BOOTS, NO DEFECTS NOTED. C/W FIM 30-11-01-810-801, NO FAULTS FOUND, ALL WIRES CHECK GOOD. R+R TMU AS PRECAUTIONARY REF, Q400 AMM 30-11-01-000/400-801. R+R ICE+RAIN PROTECTION PANEL AS PRECAUTIONARY REF. Q400 AMM 30-10-01-000/400-801. ALL OPS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.