As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED OF FLIGHT AS A CONSEQUENCE OF BOTH PRESSURIZATION CONTROLLERS WERE OUT OF SERVICE IN AUTOMATIC MODE AND OUT OF SERVICE IN MANUAL MODE WITH VALVE CLOSED AT 100 AND 200 FT OF CLIMB. AIRCRAFT WAS SENT TO THE HANGAR AND CABIN AIR SELECTOR AND CABIN PRESS CONTROL WERE REPLACED IAW MM 21-32-00, TESTED CORRECT. ADDITIONALLY, OUTFLOW VALVE ACTUATOR WAS REPLACED IAW MM 21-32-05, TESTED CORRECT.