As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN ENTRY DOOR AND ALL SUBSEQUENT ENTRY DOORS CABIN PRESSURE LIGHTS UP WHEN MAIN ENTRY DOOR CLOSED. REPLACED SKIN EXCHANGE VALVE IAW AMM 21-26-55-000-002-A, & AMM 21-26-55-400-002-A. PERFORMED AN OPS CHECK OF AEVC SYSTEM PER AMM 21-26-00-710-001-A. ACFT OK FOR CONTINUED SERVICE.