What was found
FLIGHT 5121 CABIN PRESSURE UNCONTROLLABLE. COULD NOT DUPLICATE. OPERATIONAL CHECK OF PRESSURIZATION SYSTEM WAS SATISFACTORY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5121 CABIN PRESSURE UNCONTROLLABLE. COULD NOT DUPLICATE. OPERATIONAL CHECK OF PRESSURIZATION SYSTEM WAS SATISFACTORY.