Lightning is always an unknown, even with the best preparation things can still go wrong. The first thing to do is to provide an exit path to allow the energy to dissipate without injuring people on board. If and when a lightning storm is imminent move yourself and everyone else on board away from all large metal masses eg. masts, rigging, chain plates and all other large metal objects, go below as far from metal as what the inside will allow. Unplug all electronics as modern systems are very voltage sensitive.
Check out this Emirates A380 being hit by lightning ..... not quite the same I know, but awesome nonetheless .....
www.dailymail.co.uk/news/article-1386086/Jet-struck-lightning-lands-Heathrow.htmlNothing happened to the plane or to the people on board.