What was found
STL - DURING CLIMB AFTER LANDING GEAR RETRACTION, HAD SEVERE VIBRATION FROM NOSE GEAR AREA. CYCLED LANDING GEAR AND VIBRATION CONTINUED. FOUND LEFT NOSE LANDING GEAR DOOR STOP CABLE, MFG P/N 3926528-1, TENSION LOW. RIGGED CABLE TENSION AND NOSE LANDING GEAR AND DOORS CHECKED NORMAL.