As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 384 - ON CLIMB-OUT FROM TPA, CREW REPORTED AN AUTO FAIL LIGHT AND THE CABIN ALTITUDE CLIMBING AT 4000 FPM. STANDBY MODE HAD NO EFFECT. FLIGHT DESCENDED TO 10,000 FEET AND DIVERTED TO CLT. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LOWER SAFETY RELIEF VALVE. (M)