News Summary: Ryanair orders 175 Boeing 737s

RING IT UP: European discount airline Ryanair has ordered 175 of Boeing's 737 jets, the largest order ever placed by a European carrier. Neither side disclosed the price, but Ryanair CEO Michael O'Leary said it was a discount off the total list price of $15.6 billion.

RYANAIR'S HOPES: O'Leary said the deal will allow his airline to expand in markets such as Germany, Spain, Italy, Poland and Scandinavia. Ryanair already operates a fleet of 305 Boeing 737-800 aircraft, each with 189 seats.

BOEING'S RELIEF: Chicago-based Boeing Co.'s new 787 Dreamliner was grounded by regulators in January following problems with its electrical system. On Monday, Indonesia's Lion Air signed a deal with Boeing rival Airbus for 234 A320s.