As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GEAR RETRACTION THE RIGHT GEAR RED LIGHT ILLUMINATED WITH GEAR HANDLE UP OR OFF. CYCLED GEAR DOWN AND GOT THREE GREEN LIGHTS. RETRACTED GEAR AGAIN AND GOT RED LIGHT CONDITION, RETURNED TO ORD. REPLACED RIGHT MLG UPLOCK SENSORS. ALSO, REPLACED THE A8 RIGHT MLG UPLOCK PROXIMITY CARD. SYSTEM OP CHECKS OK.