Norweigan 787 Grounded in FLA

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Norwegian Air Shuttle Boeing 787 Dreamliner grounded in Florida (http://www.smh.com.au/travel/travel-incidents/norwegian-air-shuttle-boeing-787-dreamliner-grounded-in-florida-20131224-2zvca.html)

What is with the RAT deployment??? Is it electrical only on the 787 or does it provide hydraulics?

EDIT: From reading here, the 787 has undergone a hydraulic pump re-design due to reliability issues.

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On the 787-8 the RAT supplies electrics and hydraulic pressure (5000psi) to the Primary Flight Controls on the Centre system.