As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN THE GEAR HANDLE WAS SELECTED UP AFTER TAKEOFF, THE RT MAIN GEAR TURNED RED & THE GEAR DISAGREE AURAL & WARNING STARTED, FOLLOWED QRH. ALL 3 GEARS DEPLOYED MANUALLY WITH 3 GREEN INDICATIONS. TROUBLE SHOT GEAR DISAGREE, FOUND RT MLG UPLOCK TARGET LOOSE & UPLOCK PROX SWITCH OUT OF RIG. REINSTALLED RT UPLOCK TARGET IAW CMM 32-30-15, READJUSTED PROX SWITCH IAW AMM 30-32-05. OPERATIONS CHECKED GOOD.