As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE MSG AFTER GEAR RETRACTION ON TAKEOFF. HEARD "THUMPING" NOISE FROM NOSE GEAR, PULLED MANUAL RELEASE HANDLE, GOT 3 DOWN & LOCKED, HAD FULL NWS ON LANDING. (FLT 2616) REPLACED THE NLG PRIORITY VALVE AND THE MLG SELECTOR VALVE IAW AMM. PERFORMED SEVERAL GEAR SWINGS WITH NO FAULT INDICATIONS NOTED. OPS CHECK GOOD. PN: 750005000 SN ON: 0219 SN OFF: 0655, PN: 4622 SN ON: 1144A SN OFF: 453