According to BBC website, BA 2012 A319 will be the Olympic torch flight from Athens to RNAS Culdrose this Friday evening, accompanied by HRH Princess Anne and David Beckham.
Aircraft is reported elsewhere to be G-EUPC, hex 400803.
http://www.bbc.co.uk/news/uk-england-london-18080622
According to this BBC article the flight is due to leave Athens at 15.00 BST with a duration of 4 hours.
http://www.bbc.co.uk/news/uk-18006750
Flights should be on this URL.
Reg: G-EUPC - Hex: 400803
Aircraft: Airbus A319-131 (A319)
http://www.flightradar24.com/BAW2012
http://www.london2012.com/torch-relay/index.html
BAW2012 now en route:
http://www.flightradar24.com/BAW2012
(http://cdn-www.airliners.net/aviation-photos/photos/3/8/9/2104983.jpg)
Here she comes ;D
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http://planefinder.net/flight/BAW2012
G-EUPC (cn 1118) Wearing a special livery for the London 2012 Olympic Games, the "Firefly" is the aircraft that will carry the Olympic torch to London. She is depicted here, flaring above runway 21R during her arrival at Athens International Airport.
http://www.airliners.net/search/photo.search?regsearch=G-EUPC
[Update:]
The Olympic flame has landed in the UK on board a flight from Athens, ready for the London 2012 torch relay.
The plane touched down at a Cornish air base just before 19:30BST carrying Princess Anne, Locog chairman Lord Coe and footballer David Beckham.
http://www.bbc.co.uk/news/uk-18093410