As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: PRESSURIZATION PANEL AUTO FAIL AND ALTERNATE LIGHT ILLUMINATED WITH CONTROL SWITCH IN AUTO. FLIGHT DECLARED EMERGENCY. WAS NOT OVERWEIGHT FOR LANDING. REMOVED AND REPLACED RELAYS 556, 557 (AALA202106149024), 558 (AALA202106149025) PER SSM 21-31-23 ESPM CH 20 CABIN PRESSURE SYSTEM CHECK NORMAL PER AMM 21-31-00.