TC reported MCH jammed. TC toggle MS once to clear fault. ~~~~~ TC reported MCH jammed. TC toggle MS onc     Found MCH jammed due to MS alignment out due to monting bolt unbalanced tightening,reported by OE Toh.Applied loctile to MS mounting bolts thread and equal tighted to 5.8Nm.Carried out MS & MCH function test-ok. Done by Joshua. 17/04/20