What was found
ATB/PRES/DE- RETURNED TO ATL DUE INABILITY TO MAINTAIN PRESSURIZATION. FOUND GROUND CONDITIONED AIR CHECK VALVE DAMAGED. REPLACED SAME. PACK OPS AND LEAK CHECK GOOD. (9124312) AIRCRAFT WAS GROUNDED
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ATB/PRES/DE- RETURNED TO ATL DUE INABILITY TO MAINTAIN PRESSURIZATION. FOUND GROUND CONDITIONED AIR CHECK VALVE DAMAGED. REPLACED SAME. PACK OPS AND LEAK CHECK GOOD. (9124312) AIRCRAFT WAS GROUNDED