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ICAO Doc 9974 “Flight safety and volcanic ash” is the baseline for the related EASA OPS rulemaking activity, aiming at publishing guidance for European operators to operate safely in airspace with known or forecasted volcanic ash contamination.
when volcanic ash is affecting Europe's airspace, can also detect and monitor other atmospheric pollutants, hence the Cessna's generic description as a "civil contingencies" aircraft.
If a flight crew observes a cloud or haze suspected of containing volcanic ash they should be aware that a volcanic ash encounter is imminent and they should take action to avoid the contaminated airspace.
23 kwi 2010 · Volcanic Ash – Safety Information Bulletin. The Agency has since last week been working intensively with aircraft and engine manufacturers to establish appropriate measures to ensure aircraft remain airworthy when flown in airspace with low levels of contamination from volcanic ash.
EASA continues to recommend that ash concentration charts provided by the London VAAC and Toulouse VAAC should, for operations in European airspace, identify the three zones as described in the ICAO Volcanic Ash Contingency Plan EUR and NAT Regions (EUR Doc 019), being:
Volcanic ash and aviation safety. Volcanic ash from the eruption of Eyjafjallajökull disrupted air travel in Europe in 2010. Plumes of volcanic ash near active volcanoes are a flight safety hazard, especially for night flights. Volcanic ash is hard and abrasive, and can quickly cause significant wear to propellers and turbocompressor blades ...
15 kwi 2010 · Volcanic ash from Iceland's Eyjafjallaj ökull volcano, pictured Wednesday, resulted in canceled flights in Europe today.
