As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT MLG DOOR AMBER LIGHT ILLUMINATED UPON RETRACTION CYCLE GEAR AND UPON 2ND REACTION SAME LT ILLUMINATED ALONG WITH LANDING GEAR CAUTION LIGHT. PERFORMED MANUAL EXTENSION. FOUND PSEU DRIVER 53 FLAG. REMOVED AND REPLACED PSEU AND RETRACTED GEAR, OPS CHECK GOOD.