As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA ON FLIGHT 2389- RETURNED TO FIELD DUE TO DEICE PRESSURE CAUTION LIGHT. LEFT HAND OUTBOARD BOOT WOULD NOT FULLY INFLATE. RIGHT HAND INBOARD TAIL LIGHT WOULD NOT GO OUT WHEN OUTBOARD WERE ILLUMINATED. CYCLED DEICE PRESSURE SYSTEM NUMEROUS TIMES AND OPERATIONAL CHECKS OF DUAL DISTRIBUTION VALVES. NO DEFECTS NOTED. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.