As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, RT MAIN GEAR STILL INDICATED DOWN & LOCKED AFTER GEAR SELECTED UP. DURING APPROACH THE "LOW BRAKE PRESS" LIGHT AND THE "ANTI SKID" LIGHT ILLUMINATED. CREW FOLLOWED THE CHECKLIST AND AN EMERGENCY WAS DECLARED. "SUPPLEMENT INFORMATION" THE DISCREPANCY WAS TROUBLESHOT TO A FAULTY SWITCH IN THE RT MLG ACTUATOR. THE RT MAIN GEAR ACTUATOR WAS REMOVED AND SENT TO THE SERVICE CENTER FOR REPAIR. THE REPAIRED UNIT WAS REINSTALLED ONTO THE ACFT. SYS OPS AND LEAK CHECKS WERE GOOD. ACFT WAS RETURNED TO SERVICE.