Air Canada Boeing 787-8 Dreamliner returns to Heathrow on Feb 3rd 2016

[GeoffSM1]

Air Canada Boeing 787-800, C-GHPT performing flight AC-851 from London Heathrow to Calgary was enroute at FL360 about 60nm west of Dublin (Ireland) when the crew decided to return to London due to an electrical smell.
Regretably only the communications with Shannon here due to it being illegal to listen to those with London.

[Magoomm]

I read a tweet from one of the passengers on board this flight yesterday.  He suggested that this was the inaugural flight for this Dreamliner with Air Canada.  Perhaps that might explain the electrical smell but I don't know.