As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE CABIN ALTITUDE INDICATION DASHED IN FLIGHT. THE CREW DECLARED AN EMERGENCY. THE AIRCRAFT LANDED UNEVENTFULLY AT ITS INTENDED DESTINATION. MAINTENANCE FOUND THE MANUAL PRESSURIZATION SYSTEM TO BE WORKING CORRECTLY AND DEFERRED THE AUTO PRESSURIZATION SYSTEM. THE DEFERRAL WAS CLEARED ON 4/1/15 WHEN MAINTENANCE REPLACED THE DIGITAL PRESSURIZATION CONTROLLER. OPS CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.