As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF FROM IAD WE RECEIVED A GEAR DISAGREE MESSAGE. THE NOSE GEAR FAILED TO RETRACT. EMERGENCY DECLARED -- ACFT RETURNED AFTER T/O. RELAMPED LT AFT EXT EMERGENCY LIGHT IAW AMM 33-51-15, OPS CHECK GOOD. RELAMPED LT AFT EXT EMERGENCY LIGHT IAW AMM 33-51-15, OPS CHECK GOOD. (CLOSED)