Aug 8 (Reuters) - Delta Air said on Thursday it

is pursuing legal claims against CrowdStrike ( CRWD ) and

Microsoft ( MSFT ) after a global outage last month sparked by a

faulty software update disrupted the travel plans of 1.3 million

Delta passengers and cost the airline more than $500 million in

damages.

"There is no basis -- none -- to suggest that Delta was in

any way responsible for the faulty software that crashed systems

around the world, including Delta's," wrote lawyer David Boies,

who is representing Delta, to CrowdStrike ( CRWD ). He also rejected

CrowdStrike's ( CRWD ) contention that the company's liability is capped

at "single-digit millions."