As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTOMATIC MODE FAILURE AT 13,000 FT CABIN ALT PRESENTED RED HISTORY: YES MEL 21NOV23 10:06 MDT C32507 21-12-3 PRESS CONTROL AUTO AND MANUAL. TROUBLESHOT PER FIM TASK 21-31-00-810-809-A. FOUND RELAY K0412 INOP. R/R'D K0412 RELAY IAW AMM 20-13-02 OPS CHECKS GOOD. CLEAR MEL 21-12-3.