As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#947, JFK-BZN. (AIRCRAFT PERFORMED AN AIR TURN BACK) LG NOSE WOULD NOT CLOSE OR UPLOCK; NLG UPLOCK VERIFIED OPEN AND WOULD NOT LOCK. REMOVED AND REPLACED NLG UPLOCK (2530GM) IAW AMM 32-31-21. LEAK CHECK AND OPS CHECK GOOD. A/C OK FOR CONTINUED SVC.OPS CHECK INCLUDE GEAR SWINGS.