As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, NOSE GEAR DID NOT RETRACT. ABOUT TWO MINUTES LATER WHILE RUNNING THE QRH NOSE GEAR DID COME UP. RETURNED TO THE FIELD. R & R NLG PRIORITY VALVE IAW AMM. PERFORMED GEAR SWINGS AND EVERYTHING FUNCTIONS NORMALLY. OPS CHECKED GOOD.