As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO FAIL ANNUNCIATOR ON PRESSURIZATION PANEL ILLUMINATED. SWITCHED TO ALTERNATE SYSTEM, OPERATES NORMALLY. ACFT GROUNDED. IAW AMM 21-31 TASK 801 PERFORMED BITE CHECK ON BOTH DCPC. CLEARED FAULTS. SYSTEM RESTORED NO HISTORY PAST ON PAST 30 DAYS OK FOR CONTINUED SERVICE.