Following the earlier Boeing 787-8 technical issue at London Heathrow, British Airways Boeing 787-8 G-ZBJB was switched from operating BA187 London Heathrow – Newark to operating BA277 London Heathrow – Hyderabad. However shortly after take off there was a medical emergency on board requiring the aircraft to return to London Heathrow. Once cleared crew did not have sufficient hours to operate the flight, and with no standby crew available the flight has been delayed overnight and passengers accommodated.