As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA -L GEAR DOOR AMBER LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION F/A REPORTED BOTH REAR DOORS OPEN. RIGGED LEFT GEAR DOWNLOCK NR 2 SENSOR. PERFORMED GEAR RETRACTION CHECK OPS CHECK GOOD A/C OK FOR CONT SERVICE. NO PARTS REPLACED.