As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATL INFLIGHT T2263/8MAR UNABLE TO CONTROL PRESSURIZATION. DEPLOYED MASKS. AIRCRAFT FERRIED TO DFW. FOUND HOLE CHAFFED INTO RIGHT HAND OXYGEN GENERATOR AIRCYCLE MACHINE CASING ON INBOARD SIDE. REPLACED AIR CYCLE MACHINE. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)