As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4728, CREW REPORTED THAT AT APPROX 7700 FEET THEIR NOSE DOORS HAD COME DOWN UNCOMMENTED AFTER GEAR RETRACTED. THEY HAD NO OTHER ABNORMAL INDICATIONS OTHER THAN A LOT OF NOISE AND SLIGHT DRAG. CREW RETURNED TO RDU. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED NOSE LAND GEAR UP PROX SWITCH AND NOSE LANDING GEAR DOOR RELAY. OPERATIONAL CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE