Air Canada B763 near London on Aug 23rd 2014, engine oil leak

An Air Canada Boeing 767-300, registration C-GHLA performing flight AC-810 from Toronto,ON (Canada) to Istanbul (Turkey), was enroute at FL350 about 7nm north of London's Heathrow Airport,EN (UK) when the crew decided to divert to Heathrow Airport due to a low engine (CF6) oil quantity indication. The aircraft landed safely on Heathrow's runway 27L about 30 minutes later.

The remainder of the flight as well as the return flight AC-811 were cancelled, the passengers were rebooked onto other flights.

Maintenance identified an engine oil leak. The occurrence aircraft is still on the ground in London about 12 hours after landing.