As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING ALTITUDE READOUT ON PRESSURIZATION CONTROL PANEL VERY DIM. WHEN LIGHTS TEST SWITCH IN DIM MODE. OPS NORMAL IN BRIGHT MODE. ACFT GROUNDED. R & R CABIN PRESS CONTROL MODULE REFAMM 21-31-02, 400/801. OPS & GROUND VERIFICATION TEST PASSED.