European shares halt sell-off; Airbus rises
* FTSEurofirst 300 flat, Euro STOXX 50 down 0.07 pct
* FTEU 300 set to snap longest run of weekly gains in 2 yrs
* Euro STOXX 50 finds support on 50-day moving average
* Buying convertibles seen good way to avoid pull-backs
* Barclays halts sell-off sparked by U.S. dark pool lawsuit
By Blaise Robinson
PARIS, June 27 (Reuters) - European stocks were steady around midday on Friday, halting a week-long sell-off, with Airbus rising after sources said the European plane maker is set to clinch a deal with Rolls-Royce for A330 engines.
Airbus shares were up 1.5 percent while Rolls-Royce shares were up 1.3 percent after sources told Reuters Airbus is set to upgrade its A330 with engines provided exclusively by Rolls-Royce, opening a new chapter in the fight for wide-body jet orders with Boeing's 787 Dreamliner.
At 1122 GMT, the FTSEurofirst 300 index of top European shares was flat at 1,370.55 points. The index - which has lost about 2 percent in the past five sessions, hurt by downbeat U.S. growth data as well as worries over violence in Iraq - is set to snap a 10-week long run of weekly gains, its longest winning streak since mid-2012. Continuación...