As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 AND R1 DOOR CABIN AND MAIN CARGO PRESSURE LIGHTS ARE ILLUMINATED ON THE GROUND WITH 0 PSID AND CABIN AT FIELD ELEVATION. RESET GROUND POWER, LIGHTS CLEARED, NO WARNINGS. CABIN PRESSURE CONTROL AND MONITORING ADJUSTMENT/TEST CARRIED OUT IAW 21-31-00-05 WITH NO FAULTS FOUND. AC OK FOR SERVICE.