As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CLIMB FLT LVL 400-430 HAD CAS MESSAGES DUCT 1 OVER TEMP COME ON AND WITHIN ONE MINUTE HAD CAS MESSAGE DUCT 2 OVERTEMP COME ON AS WELL. ACCOMPLISHED THE QRH PROCEDURE WITH RESULTING PAX O2 MASKS DEPLOYMENT. FOUND RAM AIR VALVE FLAPPER BROKEN. REMOVED AND REPLACED RAM AIR VALVE ASSEMBLY AND OPS / LEAK CHECKED WITH NO DEFECTS FOUND IAW AMM 21-23-00 P/N 550-17170-401 S/N 0001016409