April 11 (Reuters) - Sydney Airport Holdings Ltd SYD.AX
* Sydney Airport delivers successful a$1.4bn refinancing
* all existing bank debt facilities refinanced at lower margins
* debt maturities over 2017-19 reduced by 82% with next maturity in mid-2018
* average debt maturity extended approximately six months to late-2023 Source text for Eikon: ID:nASX5QsqTn Further company coverage: SYD.AX