As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LIFT OFF SELECTED GEAR UP, MAINS RETRACTED, NOSE GEAR REMAINED DOWN. WITH NOSE DOOR OPEN AND GEAR DISAGREE WARNING. ACFT RETURNED TO DEPARTURE AFTER T/O -- EMERGENCY DECLARED AS A PRECAUTION) ( LANDING GEAR RETRACTION SYSTEM ) FOUND PROX SENSOR ON NLG OUT OF RIG REGGED PROX SENSOR FOR NLG IAW 32-61-05 PERFORMED NUMEROUS GEAR SWINGS IAW AMM 32-30-00, NO FURTHER DEFECTS NOTED AT THIS TIME DEFER CLEARED PLACARD REMOVED.