What was found
DIVERSION/DECLARED EMERGENCY CABIN ALTITUDE WARNING HORN SOUNDED. ALTERNATE & MANUAL POSITIONS INOP. REMOVED AND REPLACED AFT OUTFLOW VALVE PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DIVERSION/DECLARED EMERGENCY CABIN ALTITUDE WARNING HORN SOUNDED. ALTERNATE & MANUAL POSITIONS INOP. REMOVED AND REPLACED AFT OUTFLOW VALVE PER MM.