As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FLIGHT LEVEL 350, AIRCRAFT STARTED LOOSING PRESSURIZATION. PILOTS DECLARED AN EMERGENCY AND DESENDED TO 10,000 FEET. AIRCRAFT LANDED AT ITS DESTINATION WITH NO FURTHER PROBLEMS. MAINTENANCE CHANGED AUTOMATIC REGULATION SELECTOR AND OPS CHECKED OK.