As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN WOULD NOT PRESSURIZE. DIFFERENTIAL STAYED AT ZERO. TRIED MANUAL AND STILL WOULD NOT PRESSURIZE. PERFORMED CABIN PRESSURE CONTROL SYSTEM TROUBLESHOOTING IAW HAWKER 800XP MM CHP 21-30-00-101. NO DEFECTS NOTED. FUNCTIONALLY TESTED PRESSURIZATION SYSTEM IAW HAKER 800XP 21-30-00-501. NO DEFECTS NOTED. PERFORMED PRSOV TEST AND MAIN AIR VALVE TEST IAW HAWKER 800XP MM CHP 21-10-76-501. NO DEFECTS NOTED. SYSTEM OPS CHECK NORMAL.