As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB FROM FJDG CREW LOST CABIN PRESSURIZATION. CREW RETURNED TO FJDG AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED OUTFLOW VALVE. THEY LUBED MECHANICAL ARMS AND BEARINGS. OPERATIONAL CHECK GOOD BOTH IN AUTO AND MANUAL PER ALL APPLICABLE MANUALS. THE AIRCRAFT WAS RETURNED TO SERVICE.