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by the lessor. If a lessor improperly collects any such amount from the lessee, the lessee shall have a legal right to claim a refund of that amount from the lessor. If, however, that amount is not refunded to the lessee for any reason, the lessor is liable to pay that amount to the Department. This paragraph is exempt from the provisions of Section 3-75. (26) Beginning January 1, 2008, tangible personal property used in the construction or maintenance of a community water supply, as defined under Section 3.145 of the Environmental Protection Act, that is operated by a not-for-profit corporation that holds a valid water supply permit issued under Title IV of the Environmental Protection Act. This paragraph is exempt from the provisions of Section 3-75. (27) Beginning January 1, 2010 and continuing through December 31, 2029, materials, parts, equipment, components, and furnishings incorporated into or upon an aircraft as part of the modification, refurbishment, completion, replacement, repair, or maintenance of the aircraft. This exemption includes consumable supplies used in the modification, refurbishment, completion, replacement, repair, and maintenance of aircraft. However, until January 1, 2024, this exemption excludes any materials, parts, equipment, components, and consumable supplies used in the modification, replacement, repair, and maintenance of aircraft engines or power plants, whether such engines or power plants are installed or uninstalled upon any such aircraft. "Consumable SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468