As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - SELECTED GEAR UP, NOTHING HAPPENED, GOT 3 RED UNSAFE LIGHTS AND HANDLE AND 3 GEAR DOWN LIGHTS (GREEN), RAN ALTERNATE EXTENSION EMERGENCY CHECKLIST. NOSE WHEEL CENTERING PROX SENSOR WAS RIGGED AND ACFT WAS JACKED PER TASK CARD THE LANDING GEAR WAS RETRACTED AND EXTENDED THROUGH FOUR CYCLES WITH NO DEFECTS NOTED OR FAULTS LOGGED IN PSEU A/C OK FOR CONTINUED SERVICE. NO PARTS REPLACED.