Feb 3 (Reuters) - Virgin Australia Holdings Ltd VAH.AX :
* Trading update for the second quarter ending 31 December 2015 VAH.AX
* Underlying profit before tax of $73.0 million for Q2 2016, representing 32.2 per cent improvement
* Q2 revenue passenger kilometres down 1.3 percent
* Q2 available seat kilometres down 1.8 percent
* Total va group network Q2 FY 2016 revenue load factor 80.3% versus 79.9%
* Source text for Eikon ID:nASX1HGVXH
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