Problem 21-18

Product A is an end item and is made from two units of B and four of C. B is made of two units of D and two of E. C is made of two units of F and two of E.

A has a lead time of one week. B, C, and E have lead times of two weeks, and D and F have lead times of three weeks.

If 120 units of A are required in Week 10, develop the MRP planning schedule, specifying when items are to be ordered and received. There are currently no units of inventory on hand. (Leave no cells blank - be certain to enter "0" wherever required.)

1 2 3 4 5 6 7 8 9 10 Item A OH = 0 LT = 1 SS = 0 Q = L4L Period Gross requirements Scheduled receipts Projected available balance Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts Projected available balance Net requirements Item B OH = 0 LT = 2 SS = 0 Q = L4L Planned order receipts Planned order releases Item C OH = 0 LT = 2 SS = 0 Q = L4L Gross requirements Scheduled receipts Projected available balance Net requirements Planned order receipts Planned order releases Gross requirements Item D OH = 0 LT = 3 SS = 0 Q = L4L Scheduled receipts Projected available balance Net requirements Planned order receipts Planned order releases Item E OH = 0 LT = 2 SS = 0 Q = L4L Gross requirements Scheduled receipts Projected available balance Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts Projected available balance Net requirements Planned order receipts Planned order releases Item F OH = 0 LT = 3 SS = 0 Q = L4L