What was found
AUTO AND MANUAL PRESSURIZATION INOP. RETURNED TO THE GATE IN SLC. REMOVED AND REPLACED ELECTRO/PNEUMATIC VALVE IAW MM 21-30-3. AUTO AND MANUAL PRESSURIZATION OPS CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUTO AND MANUAL PRESSURIZATION INOP. RETURNED TO THE GATE IN SLC. REMOVED AND REPLACED ELECTRO/PNEUMATIC VALVE IAW MM 21-30-3. AUTO AND MANUAL PRESSURIZATION OPS CHECKS GOOD.