As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTSIDE RT GREEN TAIL LIGHT ILLUMINATES MOMENTARILY, DEICE PRESSURE 20 PSI WITH ON LT LIGHT ILLUMINATING AND "ISO" SELECTED PER CHECKLIST. MX REPLACED RT OUTBOARD DDV. PERFORMED FUNCTIONAL TEST OF AIRFRAME DEICING SYSTEM. ALL CHECKED GOOD. ACFT RETURNED TO SERVICE.