As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THE AIRCRAFT WOULD NOT PRESSURIZE IN AUTOMATIC MODE CONTROL. THE MAINTENANCE PROVIDER TROUBLESHOT THE SYSTEM TO A CLOGGED JET PIPE AND JET PUMP REQUIRING CLEANING. FOR WORK PERFORMED REF HAWKER AMM. OPS CHECKS WERE PERFORMED AND FOUND TO BE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.