8 The Concessionaire shall maintain the computer based system for the control of Spares. This system shall include the functions described in Clauses 8.1 to 8.5 below:
8.1 The spares control system shall have a hierarchical classification system that identifies components, subassemblies, application software and main replaceable units in a unique way using both part numbers, software release version numbers and serial numbers for modular replacement sub-assemblies such that information on any Spare can be readily accessed.
8.2 The spares control system shall keep account of inventory of Spares and shall include provision for automatic recording of stores receipts and stores issue and an instantaneous updating of the inventory. It shall keep track of the number and location of Spares and, where possible, monitor the shelf life.
8.3 The spares control system shall provide information for the maintenance Fault Tracking System and shall identify modular replacement sub-assemblies by serial number such that details of issue, return and repair details of sub-assemblies can be tracked. It shall also provide information for the maintenance Fault Tracking System on the location and date of change of all versions of all software recorded in the spares control system.
8.4 The spares control system shall issue repurchase orders related to level of stocks and rate of use with the objective of maintaining minimum stock holding consistent with economic size of procurement batches and shall keep track of deliveries and lead time between order and delivery.
8.5 The spares control system shall be capable of producing sufficient data on the rate of use of the Spares.
9 The MRTA shall have the right to inspect all Spares and prohibit the use of defective Spares (which the Concessionaire shall forthwith remove from the Depot or other approved storage area). The MRTA and the Concessionaire shall jointly carry out an annual stock taking. A stock taking shall also be carried out on termination or expiry of the Agreement.
10 The Concessionaire shall offer to the MRTA as soon as they are available all upgrades and updated versions of Spares.