US STOCKS-Wall St to dip at open after record, China data
* China trade data weak
* McDonald's February same-restaurant sales fall
* Boeing finds cracks in wings of Dreamliners in production
* Futures down: Dow 28 pts, S&P 3 pts, Nasdaq 1 pts
By Chuck Mikolajczak
NEW YORK, March 10 (Reuters) - U.S. stocks were set to open slightly lower on Monday, on the heels of a record high for the S&P 500, following unexpectedly weak data in China which tempered enthusiasm over the strength of the global economy.
* China's exports unexpectedly tumbled 18.1 percent in February, against expectations for a 6.8 percent rise, swinging the trade balance into deficit and adding to fears of a slowdown in the world's second-largest economy, despite the Lunar New Year holidays being blamed for the slide.
* The data put a damper on positive sentiment generated by Friday's better-than-expected U.S. payrolls report, which sent the S&P 500 to a record high for a second consecutive session.
* Freeport McMoRan Copper & Gold lost 1.4 percent to $31.74 in premarket trade as concerns over China sent London copper to an eight-month low. Continuación...