As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE AIR INLET INOP (WHEN SWITCH IS ON AND OFF) FL 240, TEMP -14 DEGREES. IT BEGAN OPERATING AGAIN ON DESCENT (TEMP +5 DEGREES). RETURNED TO SLC. FOUND FRONT BELLOWS LOOSE AND CANNON PLUG ON DEICE PRESSURE SWITCH FULL OF WATER. CLEANED WATER FROM SWITCH AND CANNON PLUG. OPS CHECK WARNING SYSTEM AND BOOT GOOD. RESECURED BELLOWS AND CLEANED AREAS AS REQUIRED.