As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOISE AND RUMBLE FROM NOSE LANDING GEAR AREA, EICAS INDICATED GEAR UP POSITIONS, RETURNED TO LGA. FOUND NOSE LANDING GEAR DOOR WOULD NOT CLOSE AFTER RETRACTION. REMOVED AND REPLACED NOSE GEAR DOOR SOLENOID VALVE IAW EMB AMM 32-33-02 AND EXTENSION AND RETRACTION CHECKS IAW EMB AMM 32-30-00 WITH NO DEFECTS NOTED. RETURNED AIRCRAFT TO SERVICE.