Having this initial layout of the facility, you can determine how the maintenance operation can be organized.
If the maintenance operation is to be conducted in an established maintenance facility, the line layout should be
prepared in the format shown in Figure 1-7. The layout should show the structural material of the building, fire
protection, location of dividing walls, operational shields, and permanently installed equipment Operational
shields must be detailed to show the type of material used, height, and thickness. Permanently installed
equipment must be listed, even if it is not used in the specific operation. Each bay or room must be identified by a
numeral or letter. A directional symbol must be used to indicate true north. The building number and applicable
SOP number must also be shown. The operational sequence must be shown by the use of standardized symbols
as illustrated in Figure 1-8. The location of pallets, tables, APE, etc., must be shown where they will be used. A
legend must be used to briefly explain the operations and inspections. Maintenance operations conducted in a
field situation must have a line layout designed for the facilities and equipment that are available.