As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETRACTED GEAR ON T/O, 3 GREEN LIGHTS WENT OUT, RED UNLOCK LIGHT STAYED ON. TROUBLESHOT GEAR WARNING INDICATION, FOUND THAT RT MLG UPLOCK LATCHING MECHANISM IS STICKING PER CITATION 560 MM 32-30-00. CLEANED AND LUBED UPLOCK LATCHING MECHANISM AND ROLLER. WORK DONE IAW CITATION 560 MM CH: 32-31-05. OPERATIONAL CHECK SATISFACTORY.