** easyJet down 8.3 pct, poised for its biggestone-day loss in more than 4 yrs & at its lowest levels in 2 mthsin heavy volume
** In-line H1 & fact co turned profit in weaker winterseason for first time eclipsed by downbeat H2outlook
** Air traffic control strikes in France expected to take 25mln pounds from H2 pretax profit
** Easily top faller on Stoxx 600, with its normal90-day daily avg volume having gone through in an hour
** Weakness seen sector wide: Ryanair down 3.4 pct,Air France-KLM 1.7 pct lower, with IAG &Deutsche Lufthansa both down c.1 pct (RM: tricia.wright1.thomsonreuters.com@reuters.net)