As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LANDING GEAR RETRACTION AFTER TAKEOFF, RECEIVED ''DOORS'' AND ''GEAR'' AMBER DISAGREE LIGHTS ALONG WITH EICAS MESSAGES ''GEAR DISAGREE'' AND ''GEAR DOOR''. ALSO, HAD STRONG BUFFET APPARENTLY FROM NOSE GEAR. CYCLED LANDING GEAR AND LIGHTS AND MESSAGES CLEARED. RETURNED FOR AN UNEVENTFUL LANDING AFTER NORMAL GEAR EXTENSION. MAINTENANCE REPLACED THE NOSE GEAR DOOR, OPERATED SEQUENCE VALVE AND DOOR ACTUATOR. OPERATIONAL CHECK NORMAL.