As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A 'GEAR DISAGREE' MSG WITH ASSOCIATED 'GEAR DOOR' EICAS. DURING GEAR SWING WITH WLG & BDG PINNED. NLG UP & LOCKED NORMALLY BUT WHEN SWINGING ALL GEARS (NOT PINNED) THE NLG WILL NOT RETRACT FULLY. SUSPECT NOSE-BODY LANDING GEAR SELECTOR VLV AT FAULT. REPLACED NLG RETRACT ACTUATOR AND NLG LOCK. OPS CHK NORMAL.