As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
3980 INFLIGHT RECEIVED GEAR DISAGREE MESSAGE, PERFORMED QRH & LANDED NORMALLY, GEAR HANDLE IN RETRACT POSITION BTMS READING VISIBLE APPROXIMATELY 20 SECONDS BEFORE NLG UNSAFE. R & R DRAG BRACE. FERRIED FOR EMERGENCY HANDLE MOD. SERVICE BULLETIN COMPLIANCE.