When the interim order for the work scope is released, the expected off-log is created. This log will hold a copy of the VIM serial structure, as it is created after the Disk Sheet updates have been performed by the customer. You can use the expected off log to view a snapshot of the overhaul object's serial structure which is shown in a multilevel format.
Once the first disassembly order is started, the serial structure in IFS/Vehicle Information Management will no longer be intact. This is because the sub-serials that are disassembled from the overhaul object's structure are removed from the associated VIM serial structure. Consequently, the expected off-log can be used to view details of the overhaul object's structure, as it was, before the start of the maintenance process.
Note: The expected off-log will never change, and it retains information of the original structure throughout the entire maintenance process.