As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACTION CLIMBING THROUGH 11,000 FT AND ACCELERATING THROUGH 310 KNOTS, NOSE GEAR DOOR CAME OPEN. SLOWED TO 250 KNOTS, DOOR APPEARED TO CLOSE. REPLACED NOSE GEAR DOOR LINK ACTUATOR AND RIGGED SAME IAW AMM. PERFORMED NOSE GEAR RETRACTION CHECK.