What was found
GYE - AIRCRAFT UNABLE TO PRESSURIZE. EMERGENCY DECLARED RETURNED GYE WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED PRESS CONTROLLER AND FORWARD OUTFLOW VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
GYE - AIRCRAFT UNABLE TO PRESSURIZE. EMERGENCY DECLARED RETURNED GYE WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED PRESS CONTROLLER AND FORWARD OUTFLOW VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.