As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYC-DEICE CAUTION LIGHT ILLUMINATED INFLIGHT, ISOLATED SYSTEM AS PER CHECKLIST. NR 1 & 2 DEICE PRESSURE INDICATED 18 PSI. NR 1 INTAKE BOOT DIDN'T ILLUMINATE. NO FAULTS INDICATED ON CDS. PERFORMED OPERATIONAL TEST OF DEICE SYSTEM. NO DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.