What was found
FLT ALTITUDE DISPLAY INOPERATIVE. ACFT GROUNDED. REPLACED CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02. ALL GROUND VERIFICATION TESTS PASS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT ALTITUDE DISPLAY INOPERATIVE. ACFT GROUNDED. REPLACED CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02. ALL GROUND VERIFICATION TESTS PASS.