As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT MAIN GEAR WILL NOT COME UP, GEAR DISAGREE MSG ON TAKEOFF QRH COMPLETED RETURNED TO DTW. ALL INDICATIONS NORMAL AFTER QRH PROCEDURE. COMPLIED WITH PA 05-018 REVF SCENARIO 1. REFER TO NON-ROUTINE WORK CARD N 24312 FOR WORK PERFORMED. RE-TIGHTENED UPLOCK (RT MLG) TARGET AND REPOSITIONED UPLOCK PROX SWITCH. TARGET DONE IAW CMM 32-30-15. PROX SWITCH DONE IAW AMM 32-32-05.