What was found
AT FL380 A/C PRESSURIZATION BEGAN TO CLIMB AT 1500 TO 2000 FT PER MIN. PERFORMED QRH FOR EMERGENCY DESCENT. RECEIVED CABIN ALT WARNING MSG. EMERGENCY DECLARED, A/C LANDED SAFELY IN SDF. REMOVED AND REPLACED LEFT SAFETY VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT FL380 A/C PRESSURIZATION BEGAN TO CLIMB AT 1500 TO 2000 FT PER MIN. PERFORMED QRH FOR EMERGENCY DESCENT. RECEIVED CABIN ALT WARNING MSG. EMERGENCY DECLARED, A/C LANDED SAFELY IN SDF. REMOVED AND REPLACED LEFT SAFETY VALVE.