We do LPA because it is required by our automotive customer. 1st layer are our Front Line leaders, Technicians, 2nd layer are Supervisors, Engineers, Finance, HR, Planners, Purchasers and the 3rd layer are the Functional Managers. This is being done every day/shift for the 1st layer, 2nd layer are two processes per week and 3rd Layer one process per week.
For non-automotive products, we do the manufacturing process audit once a month per audit schedule but covers the whole assembly process.