As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6203 IAD - MHT - RETURNED TO IAD DURING CLIMB AFTER EXPERIENCING AN UNRESPONSIVE NOSE GEAR RETRCTION SCENARIO. AIRCRAFT DECLARED AN EMERGENCY AND RETURNED TO IAD AND THE GATE. MAINTENANCE FOUND THAT THE RAMP PERSONNEL HAD NOT COMPLIED WITH THE PROCEDURES FOR REMOVING THE GEAR LOCK DOWN PINS PRIOR TO SENDING THE AIRCRAFT OUT. MAINTENANCE REMOVED THE PIN AND RELEASED THE AIRCRAFT FOR SERVICE. (M)