As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRBORNE A/T CLICKED OFF, DFGS ALT WINDOW BLANKED, AND FMS SCRATCH PAD SHOWED CADC NR 1 FAILED. USED CADC FAIL CHECKLIST. ON LEVEL OFF NR 1 ALT WAS 600 FT HIGHER THAN STBY. BECAUSE OF INDICATION IF INTERMITTENT FAILURE FROM BOTH CADC COMP, RETURNED TO CVG. REPLACED CADC NR 1 AND CADC NR 2. OPS AND LEAK CHECKED SYS PER AMM 34-11-00-201-1. RAN RT 1 AND 2, BOTH OK.