As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THROUGH 22000 FT CAB RATE ABNORMAL FLUCTUATIONS. THE CAB RATE DASHED INDICATIONS CAB AP HOLD 8-21 PSI & CAB ALT INITIAL HOLDING AT 2500 FT, THEN SLOWLY DECREASING. RUN AOM 1 PROCEDURES ON AUTO PESS LAND ELEV, NO MSGS BUT THE LANDING ALT INDICATIONS. DEFERRED PRESSURIZATION CONTROL SYS AUTO & MANUAL M PROCEDURES COMPLIED WITH IAW 21-18. REMOVED AND REPLACED ELECTROPNEUMATIC OUTFLOW VALVE IAW EMB AMM 21-31-03. OPC GOOD REF AMM 21-31-00-700-801-A. MEL RESTORED.