As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3507 PASSENGER AND CARGO DOORS PRESSURIZATION WARNING LIGHTS ILLUMINATED AT SHUT DOWN AT GATE. CORRECTIVE ACTION: PERFORMED GVI CABIN DIFFERENTIAL PRESSURE SWITCH. NO OBSTRUCTION IN LINE. A/C OK FOR SVC PER A350 AMM 21-30. (6618069)