What was found
LOST CABIN PRESSURIZATION WITH AUTO FAIL LIGHT ILLUMINATION AND ALTITUDE WARNING HORN. BOTH STANDBY AND MANUAL OKAY. PERFORMED EMERGENCY DESCENT. REMOVED AND REPLACED PRESSURE CONTROLLER. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOST CABIN PRESSURIZATION WITH AUTO FAIL LIGHT ILLUMINATION AND ALTITUDE WARNING HORN. BOTH STANDBY AND MANUAL OKAY. PERFORMED EMERGENCY DESCENT. REMOVED AND REPLACED PRESSURE CONTROLLER. (X)