As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DE-ICE PRESSURE CAUTION, WITH BOOTS IN FAST, TORQUE AT 64 PERCENT, LT TAIL INBD ADV LIGHT DID NOT ILLUMINATE. DE-ICE PRESSURE GAUGE INDICATED NORMAL PRESSURE WITH BOOT ISO SWITCH ON AND OFF. DIVERTED AND ACCOMPLISHED A UNEVENTFUL LANDING. L/E 331AL & 341BR AND DDV NR 6 REPLACED. PERFORMED FUNCTIONAL CHECK OF PNEUMATIC DE-ICE SYS IAW AMM 30-11-00-720-801, INCLUDING HS 30-0012. CHECKED GOOD. RETURNED TO SERVICE.