AA-121 seems jinxed, yesterdays flight diverted LHR as well...
Incident: American B752 near London on Apr 9th 2011, hydraulic problemAn American Airlines Boeing 757-200, registration N173AN performing flight AA-121 from Paris Charles de Gaulle (France) to New York JFK,NY (USA), was enroute at FL360 about 100nm west of Exeter,EN (UK) when the crew reported hydraulic problems and diverted to London Heathrow,EN (UK) for a safe landing on runway 09L about 70 minutes later.
Info from:
Aviation Herald