As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED AIR - RIGHT BLEED AIR OT ILLUMINATED AFTER LEVELING AT FL400. RAN CHECKLIST. CAS WENT AWAY. PER CHECKLIST RETURNED TO NORMAL STATUS AFTER ALLOWED TIME. R BLEED AIR OT REAPPEARED AND LESS THAN TWO MINUTES LATER FOLLOWED BY CABIN ALTITUDE CAS. DECLARED EMERGENCY AND COMPLIED WITH APPLICABLE CHECKLISTS. DESCENDED TO 11,000 FT. T /S TO FAULTY CONTROL ACTUATOR ASSEMBLY. REMOVED AND REPLACED R/H CONTROL ACTUATOR ASSEMBLY.