As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ADC NUMBER ONE FAILURE CLIMBING OUT OF SLC. RETURNED TO SLC. FOUND FAULT INDICATOR ON NUMBER ONE ADC ILLUMINATED. REPLACED NUMBER ONE ADC IAW CL600 34-13-01. AIR DATA OPS CHECKS AND PITOT STATIC CHECK GOOD. P/N ON: 822-0372-140, S/N ON: 3112, S/N OFF: 2044.