As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO GET RIGHT MAIN GEAR TO GIVE AN UP AND LOCKED INDICATION. CYCLED GEAR SEVERAL TIME THEN GOT A GEAR DISAGREE WARNING IN RETRACT POSITION. AFTER DE-ICING MAIN ENG GEAR, INSPECTED GEAR AND PERFORMED A GEAR SWING. NO PROBLEMS FOUND. SUSPECT LARGE AMOUNT OF ICE ON UPLOCK POST. OPS CHECKS GOOD AT THIS TIME. SEE FL 5054 FOR MECH SIGN OFF.