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Volcanic ash deposits on a parked McDonnell-Douglas DC-10-30 during the 1991 eruption of Mount Pinatubo, causing the aircraft to rest on its tail.While falling ash behaves in a similar manner to snow, the sheer weight of deposits can cause serious damage to buildings and vehicles, as seen here, where the deposits were able to cause the 120 ton airliner's centre of gravity to shift.
A Volcanic Ash Advisory Center (VAAC) is a group of experts responsible for coordinating and disseminating information on atmospheric volcanic ash clouds that may endanger aviation. As at 2019, there are nine Volcanic Ash Advisory Centers located around the world, each one focusing on a particular geographical region.
A watch was set up to monitor clouds of ash. [5] Flight 009 was not the first encounter with that eruption; a Garuda DC-9 had encountered ash on 5 April 1982. [13] The crew received various awards, including the Queen's Commendation for Valuable Service in the Air for Moody, [14] and medals from the British Airline Pilots' Association.
Recent volcanic eruptions are creating a minefield for pilots who have to be on watch for volcanic ash clouds capable of shutting plane engines down completely. The Calbuco volcano in Chile, one ...
MEXICO CITY (Reuters) -Mexico City International Airport on Tuesday said airlines have canceled 22 domestic and international flights to carry out safety checks after planes encountered ash from ...
DENPASAR, Indonesia– Ash from the frequent eruptions of the Mount Lewotobi Laki-Laki volcano in Indonesia has disrupted and canceled flights to and from Bali. According to the Denpasar ...
The types of minerals present in volcanic ash are dependent on the chemistry of the magma from which it erupted. Considering that the most abundant elements found in silicate magma are silicon and oxygen, the various types of magma (and therefore ash) produced during volcanic eruptions are most commonly explained in terms of their silica content.
The London Volcanic Ash Advisory Centre (VAAC) was responsible for providing information about the ash plume to the relevant civil aviation authorities in the form of Volcanic Ash Advisories (VAA). On the basis of this, the authorities made decisions about when and where airspace should be closed due to the safety issues.