One of the most-often busted federal aviation regulations is VFR cloud clearances. That’s because pilots often have a hard time judging how close they really are to clouds.

Large parts of Europe enforced no-fly rulings for a third day on Saturday because of a huge ash cloud from an Icelandic volcano that has caused the worst air travel chaos since the September 11 ...

Airports in the northwest of the U.K. and across Ireland reopened as a volcanic ash cloud moved west, but authorities warned that trans-Atlantic routes could be hit later after the Icelandic ...

Controlled airspace still under a cloud 25 years on. Pilots still have to blunder around in cloud despite numerous recommendations to institute a proven safety standard. DICK SMITH.

LONDON (AP) — Civil aviation officials on Sunday said a drifting, dense cloud of volcanic ash is "rapidly encroaching" on British airspace, forcing the closure of airports in Northern Ireland.

The cloud of volcanic ash from Iceland has moved out of British airspace but is still grounding scheduled flights into and out of the country. By Nick Collins 25 May 2011 • 7:13am ...

Dutch airspace is to remain closed until further notice, air safety inspectors said on Friday morning, as the cloud of volcanic ash from Iceland moved southwards across Europe. KLM had already ...

A volcanic ash cloud that has caused travel chaos in Britain's skies is "rapidly encroaching" again, forcing airspace to be closed and renewed disruption to plane passengers.

An ash cloud from Iceland briefly forced the closure of several north German airports on Wednesday, including Hamburg and Berlin, even as the Grimsvoetn volcano appeared to stop erupting.

Large parts of Europe enforced no-fly rulings for a fifth day on Monday because of a huge ash cloud from an Icelandic volcano that has caused the worst air travel chaos since the Sept. 11 attacks.