A team of experts have flown to a North Sea platform operated by French energy giant Total to inspect a wellhead that has been leaking gas since March 25, the company said on Thursday. Total said a helicopter left the Scottish city of Aberdeen at 10:30 am (0930 GMT) \"with the objective of landing on the Elgin (platform) to allow a specialised team to perform a reconnaissance mission of the Elgin wellhead platform and the G4 well, if it is safe to do so\".