DUBAI, Aug 15 (Reuters) - Dubai's Drake & Scull DSI.DU (DSI) swung to a second-quarter net loss as revenue shrank amid a slowdown in the construction sector.

The contractor made a net loss attributable to owners of the parent of 207.6 million dirhams ($56.6 million) in the three months to June 30, it said in a statement. This compares with a profit of 10.3 million dirhams in the year-earlier period.

EFG Hermes forecast DSI to make a quarterly loss of 11.4 million dirhams. urn:newsml:reuters.com:*:nL8N1AB3MR

DSI had reported worsening earnings in eight of the preceding nine quarters that it blamed on a slowdown in the Gulf construction sector, including a substantial loss in the third quarter of 2015 due to provisioning. urn:newsml:reuters.com:*:nL8N13A01W

DSI's second-quarter revenue was 805.5 million dirhams, versus 1.29 billion dirhams a year earlier.

Total net loss reached 225.9 million dirhams, it said.

($1 = 3.6724 UAE dirham)

(Reporting By Tom Arnold; Editing by Subhranshu Sahu) ((Tom.Arnold@thomsonreuters.com; +97144536265; Reuters Messaging: tom.arnold.thomsonreuters.com@reuters.net))