What was found
AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB AFTER GEAR RETRACTION A LOUD NOISE & VIBRATION OCCURRED FROM NOSE GEAR. NLG DOORS FOUND OPEN UPON ARRIVAL. CLOSED & INSPECTED DOORS & LINKAGE IAW 05-91-29. NO DAMAGE FOUND. DOORS MANUALLY CYCLE & CLOSE PROPERLY. OK FOR SERVICE.