As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SYSTEM #2 ''ACTIVE SYSTEM'' INDICATION INOP ON PRESSURE SYSTEM ECA M PAGE. PFR SHOWS CAB PR SYS 2 FAULT, CAB PR EXCESS CAB ALT. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN SEE TSM 21-31-00-810-827-A, CALL TOMC 847-700-9980 MAC METER INITIATED FOR WITH VENDOR MAC RELATED WORK ORDER 000000002036328 AND PRTR SEE LOG PAGE 3849742 FOR CORRECTIVE ACTION SEE LOG PAGE 3849742 FOR CORRECTIVE ACTION.