<p><br /> British Airways has said it will aim to resume some flights in and out of London's airports from 7pm on Tuesday.<br /> </p><p><br /> The airline made the announcement after complaning that the current restrictions on air travel may be too severe.<br /> </p><p><br /> BA chief executive Willie Walsh joined a flight crew on board a Boeing 747 test flight that set out on Sunday evening from Heathrow and went out into the Atlantic before landing safely at Cardiff.<br /> </p><p><br /> The carrier said analysis of the flight had revealed "no variations in the aircraft's normal operational performance".<br /> </p><p><br /> The aircraft's "black box" flight data recorders showed that all four engines had performed "without fault for the duration of the flight".<br /> </p><p><br /> The aircraft flew as high as 40,000ft during a flight nearly three hours long.<br /> </p>
