Maintenance Plan Scheduling

Dear friends,

I have given seven day packages for all the operations in the maintenance task lists and assigned the same strategy in the maintenance plan. The problem is I am getting the maintenance call object 7 days before the plan date.I.e the plan date for the order is on 23/02/2010 but the maintenance order is released on 16/02/2010 itself. The call horizon is 90% and scheduling period is 999 days and cycle is 7 days

Cycle modification is 1.00 and all the remaining are blank( no buffer is used).

With regards,

V.Vijay Kumar