18aa367c_ooting_Sewing_Machine_Problems__Symptom
[Root Cause] Sewing machine was accidentally started while threading hook was still in needle eye (during threading). [Corrective Action] Slightly turn handle clockwise and remove threader. [Symptom] 
Needle threader cannot be returned and the sewing machine stops. The threading hook is left in the needle eye.
Troubleshooting Sewing Machine Problems
Symptom