As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JAN - FLT 3479 - FLIGHT CREW REPORTED CABIN PRESSURE UNCONTROLABLE AT FL350. EMERGENCY WAS DECLARED AND AIRCRAFT WAS LANDED SAFELY. MAINTENANCE REMOVED AND REPLACED DIGITAL CONTROLLER AND RESECURED THE RAM AIR DUCT IAW EMB MM. PERFORMED FCF WHICH WAS FOUND TO BE SATISFACTORY AND AIRCRAFT WAS RETURNED TO SERVICE. (M)