As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTO FAIL AND GREEN ALTN LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. INITIAL EVALUATION, NEITHER AUTO OR ALTN LIGHT WERE STILL PRESENT. PERFORMED DCPC BITE IAW B737-900 FIM 21-31 TASK 801. DCPC#2 SHOWED "OFV LRU FAIL" ON FLIGHT LEG 00, BUT NOTHING IN EXISTING FAULTS. RAN PRESSURIZATION SYSTEM GROUND TEST IAW B737-900 AMM 21-31-00-700-802. BOTH DCPC SHOWED "SYSTEM OK." A/C OK FOR SERVICE.