Share Sounds presented by Nigel Cassidy

British Airways owner International Consolidated Airlines Group has said its first-quarter operating profit before exceptional items rose by 9.7% to €170m (US$186.6mn), up from €155m in 2016 and well ahead of analysts forecast for €140.5m.

More Brexit worries surround the aviation industry, with Ryanair saying it will have to halt flights from the UK for weeks or months if Theresa May does not seal an early bilateral Brexit deal on international aviation. And the Spanish owner of Heathrow airport says uncertainty over the UK's exit from the EU has put a halt on future UK investment deals.

There was a slide in pre-tax profits from EasyJet yesterday. Airlines are concerned the triggering of Article 50, the mechanism which formally starts Brexit negotiations with Brussels, could put the Open Skies agreement at risk. Carriers such as Ryanair and IAG, the owner of British Airrways, have urged the UK government to preserve the agreement, or otherwise, risk hurting UK airlines. Share Radio's Matt Cox heard from Aviation Industry Commentator Julian Bray to find out more about Open Skies and why there is so much concern.

Aviation expert Julian Bray on Easyjet's full year trading statement, and the impact of Brexit on airlines.

Boeing, the world's largest plane manufacturer, plans to cut thousands of jobs. So is this a sign that Boeing, and even the wider aerospace sector, is in trouble? Matt Cox spoke to aviation expert Julian Bray who offered his thoughts on the situation.