As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED INFLIGHT, ABLE TO CONTROL CABIN IN ALTN MODE. ACFT GROUNDED. C/W BITE ON NR1 & NR 2 DCPCS IAW FIM 21-31-TASK 801, NO EXISTING FAULTS NOTED. C/W SYS TEST & CLEAR ON BOTH DCPCS & SYS 1 & 2 OK & NO FAULTS NOTED. AUTO FAIL LIGHT OFF IN NORMAL POSITION. ACFT OK FOR SERVICE.