As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*EMERGENCY DECLARED* CABIN ALT AND CABIN ALTITUDE LIGHTS ILLUMINATED EICAS MSG CABIN WAS ALTITUDE WAS DISPLAYED.OPERATION IN IN MANUAL MODE RESTORED CABIN PRESSURE REF AMM21-31-02 REPLACED CPC CONTROLLER,REF AMM 21-31-00 DO GROUND TEST,TEST OK