Virgin Atlantic diversion

Today's Virgin Atlantic flight VIR21 from Heathrow to Washington operated by Airbus A340-311 G-VSEA, msn 3 diverted to Dublin with a technical problem. Initially, the aircraft diverted to Shannon where the airport fire service had been called out. The flight was on finals when the decision was made to return to Heathrow at FL150. Whilst in the climb the crew contacted their ops base in the UK who instructed the flight to divert to Dublin since there was engineering support available there. The aircraft then headed up the east coast at FL100 to the TULSO hold for R28 to enable fuel dumping.