As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2025 - AT APPROXIMATELY 11,00 FT, INDICATING 230 KTS, THE LEFT LANDING GEAR DOOR LIGHT ILLUMINATED WITH A LANDING GEAR INOP CAUTION LIGHT. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE NR 1 LANDING GEAR DOOR SEQUENCE VALVE AND THE PSEU (FOR CARD A & B FAULTS). OPERATIONAL CHECKS WERE DONE AND CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.