BA jet diverted twice to Shannon

The crew of the 16-year-old Boeing 777-200(ER) (registration G-VIIS) declared an emergency shortly before 10am yesterday while approaching the Donegal coast en route from Seattle, Washington in the US to London Heathrow.
There were 220 passengers and crew on board flight BAW-48 when the pilot advised air traffic controllers of the problem and that they wished to divert to Shannon Airport.