5.  DEDUCTIONS FOR UNAVAILABILITY EVENTS

5.1  Subject to paragraph 1 above, the amount to be deducted from the Monthly Service Payment in respect of each Functional Unit affected by an Unavailability Event shall be the higher of:

(a)  the Minimum Unavailability Deduction; and

(b)  an amount calculated in accordance with the following formula:

where:

5.1.1  D means the amount (in pounds sterling) of the Deduction in respect of the Unavailability Event;

5.1.2  ASPn means the Annual Service Payment at the time the relevant Unavailability Event occurs;

5.1.3  AW means the Area Weighting Percentage attributable to the Functional Area in which the Unavailability Event occurs;

5.1.4  UW means the Unit Weighting Percentage attributable to the Functional Unit in which the Unavailability Event occurs; and

5.1.5  DP is 50% and shall apply only where the relevant Functional Part is Unavailable but the Board continues to use any room or space within the relevant Functional Part that is in a state or condition which does not comply with any one or more of the Availability Conditions.