Paragraph 12

The authorised works shall, when commenced, be constructed with all reasonable dispatch in accordance with the plans approved, deemed to be approved or settled by arbitration in accordance with paragraph 6 above and, if any damage to or interference with airport property shall be caused by the construction of the authorised works, the Company shall, notwithstanding any such approval or settlement, make good such damage and shall pay to the authority all reasonable costs and expenses to which they may be put by reason of any such damage or interference, but nothing in this paragraph shall impose any liability on the Company with respect to any damage, costs or expenses attributable to the act, neglect or default of the authority or their servants, contractors or agents.