As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON LANDING GEAR RETRACTION, THE RIGHT RED 'R' GEAR ANNUNCIATOR REMAINED ILLUMINATED. ALL OTHER GEAR INDICATIONS INCLUDING THE STANDBY WERE EXTINGUISHED. LANDING GEAR EXTENDED NORMALLY FOR LANDING. TROUBLESHOT AND FOUND INTERMITTENT RT MAIN LANDING GEAR DOOR UPLOCK MICROSWITCH. REPLACED SWITCH KN872 PER THE HAWKER 800XPC MM CHAPTER 32-60-00 AND WIRING DIAGRAM 32-60-10-04 PG 0. OPS CKS GOOD.