A British Airways Boeing 747 completed a successful test flight in "perfect" conditions and without encountering any difficulties, the airline said.
Lufthansa and Air Berlin said Sunday that the decision to close much of Europe's airspace was not based on proper testing and that their aircraft showed no signs of damage after flying without passengers.
Secretary Lord Adonis said after an *emergency meeting of ministers at 10 Downing Street that data from the test flights would be considered today.