|
AIR SAFETY
European
Aviation
Shutdown
Could
Last
Until
the
Week of April 19. A huge ash cloud from an Icelandic
volcano
turned the
skies of northern Europe into a no-fly zone on Thursday, stranding
hundreds of thousands of passengers.
The European air safety organisation said the disruption, the biggest
seen in the region, could last another two days and a leading volcano
expert said the ash could present intermittent problems to air traffic
for 6 months if the eruption continued.
Even if the disruption is short lived, the financial impact on airlines
could be significant, a consultant said. The International Air
Transport Association had said only days ago airlines were slowly
coming out of recession.
The volcano began erupting on Wednesday for the second time in a month
from below the Eyjafjallajokull glacier. It hurled a plume of ash six
to 11 kilometres (4 to 7 miles) into the atmosphere, and this spread
south east overnight.
Volcanic ash contains tiny particles of glass and pulverised rock which
can damage engines and airframes and an Icelandic volcanologist said on
Thursday the eruption was growing more intense.
Why
Is Volcanic Ash A Threat To Planes?
A cloud of volcanic
ash drifting eastward from Iceland has halted
flights across northern Europe, causing widespread disruption.
What is volcanic ash?
Plumes of dust spewed out by volcanoes usually contain tiny particles
of glass, pulverised rock and silicates. The result is a cloud of
material resembling sandpaper.
Why is it a hazard to
aviation?
The problem is not visibility but the abrasive affect of the ash, which
can both strip vital surfaces and clog an engine.
Pulverised rock colliding at high speed with a speeding jet can blast
away surfaces inside the engine.
Due to intense heat in the motor, the particles can fuse together when
they penetrate the engine and stop it working. Aircraft avionics and
electronics can also be damaged.
Aviation authorities say clouds of ash are often accompanied by clouds
of gas such as sulphuric acid and hydrochloric acid.
How long will the problem
last?
The answer depends on the weather. Prevailing winds have so far spread
the cloud eastwards from Iceland towards British and Scandinavian
airspace. Britain's meteorological office says ash may be present over
the United Kingdom on Thursday and Friday.
What happens when volcanic
ash is detected?
A 120 nautical mile danger zone is declared around the original plume
and flights are banned in contaminated areas as winds move the ash
across flight paths. The scale of Thursday's response is
"unprecedented," a British spokesman said.
On June 24, 1982, the
captain of a British Airways Boeing 747 en route from Kuala Lumpur to
Perth, Australia, came on the speaker system at around 37,000
feet and calmly told the 247 passengers on board that all four of its
engines had failed.
In an incident that went down in aviation history, Captain Eric Moody
glided the jet down more than 20,000 feet and managed to restart one
engine at 13,000 feet followed by others, according to the Flight
Safety Foundation.
It was only later that investigators found the combination of engine
failure, an eerie luminous glow around the plane and acrid smoke inside
the cabin had been caused by flying into a cloud of volcanic ash from
the eruption of Mount Galunggung.
The aircraft landed safely on three engines but the incident prompted
new flight procedures and international exercises.
On December 15, 1989, all
four engines failed when a KLM Boeing 747 jumbo flew into a
cloud that turned out to be volcanic ash while en route from Amsterdam
to Anchorage, Alaska. The engines resumed working and the damaged plane
landed safely.
That incident was blamed on lack of sufficient
information provided to the crew, the Flight Safety Foundation says.
How do controllers plan
for a Volcanic
Ash event?
Partly as a result of these incidents, the
International Civil Aviation Organisation, a United Nations body,
maintains detailed contingency plans that were activated on Thursday.
The incident came just six weeks after European
authorities carried out the first of two 2010 exercises for just such
an event, aimed at preventing a catastrophe due to volcanic dust.
American Airlines,
Boeing
US FAA said it has
heightened its oversight of American Airlines following three difficult
landings in December. In the most serious of those, a 737-800 was
destroyed when it overran the runway at Kingston on Dec. 22 and skidded
onto a nearby beach. There were no serious injuries in that accident.
The agency said AA had two other poor landings last month involving
MD-80 wingtips hitting the runway in Charlotte and Austin. It said that
in addition to stepping up oversight, it will examine the incidents to
determine if there could be a link. AA said it is cooperating with FAA.
1/6/2010
Boeing
Two pilots have
reportedly each been sentenced to at least five years' imprisonment for
the 24 August 2008 crash of a Boeing 737-200 that killed 64 of 90
occupants when it came down while attempting to return to Bishkek
shortly after departing for Tehran. Last May, in its final report on
the incident, Russia's Interstate Aviation Committee concluded that the
crew had failed to follow standard operating procedures. 1/8/2010
Continental Airlines
Continental Airlines
has suspended operations at its Cleveland hub at Hopkins International
Airport through 6 pm today due to a widespread airport power outage.
The company is making its best efforts to re-accommodate customers
traveling today on alternate flights. Customers scheduled on flights
to, from, or through Continental's hub at Cleveland on Sunday, January
10, 2010 are permitted a one-time date or time change to their
itinerary without penalty. If a flight has been canceled, a refund in
the original form of payment may be requested. Complete details are
available at continental.com . 1/10/2010
Delta Air Lines
Delta Air Lines and
subsidiary Northwest Airlines were granted a single operating
certificate by US FAA on Dec. 31, an expected move that clears the way
for full integration to be completed by late first quarter/early second
quarter. 1/5/2010
IATA
IATA said that Sunday's
US Transportation Security Administration announcement concerning more
random screening of US-bound passengers not connected with 14 specific
countries considered to be security threats "is a welcome step in the
right direction" toward a long-term model that is "globally harmonized,
risk-based and [which has] efficient process for passengers." TSA now
is requiring all passengers who are citizens of or traveled
from/through Iran, Sudan, Syria, Cuba, Afghanistan, Algeria, Lebanon,
Libya, Iraq, Nigeria, Pakistan, Saudi Arabia, Somalia and Yemen to
undergo "enhanced screening." The agency said its new regulation also
"mandates threat-based and random screening for passengers on US-bound
international flights" from all airports. Yesterday, IATA said it
"understands the need for government-mandated emergency security
measures" following the Dec. 25 attempted bombing of a Northwest
Airlines flight but argued that "measures should be revised as
information is gathered in the investigation." DG and CEO Giovanni
Bisignani called for a government-industry partnership and said that "a
smaller percentage of intensive patdowns accompanied by trace detection
technology may reduce delays and achieve near-term security
requirements as we focus on longer-term technology solutions" focusing
on screening and improved intelligence. 1/5/2010
Newark Airport
Flights departing
Newark Airport's Terminal C have been delayed owing to a security
breach, resulting in passengers being re-screened. At 1720 local time
an individual was observed walking from the terminal's public area to
its restricted area without clearing screening, say United States media
reports. Authorities were unable to apprehend the individual, and
thousands of screened passengers were moved back to the terminal's
public area to undergo re-screening, resulting in flight delays.
1/4/2010
United Airlines
With winter weather
expected this week in the Midwest and the Southeast, United Airlines is
encouraging customers ticketed for travel Jan. 7 to 8 to, from or
through certain Midwest airports, or ticketed for travel Jan. 7 to,
from or through certain Southeast airports, to consider rebooking their
itineraries, as certain change fees have been waived. It is encouraging
travelers to go to its website for flight status confirmation and
notification, with updates to departure and arrival times sent via
email or to a mobile device; to confirm and/or rebook an existing
reservation; and for online check-in, which enables customers to print
a boarding pass for a departing flight or view options if a booked
flight has been canceled due to weather. www.united.com 1/7/2010
ZZ AirGuide 100111
For Swine Flu Recommendations by WHO
More Features & Reviews
US Releases Long-awaited Air Cargo
Security Regulation
Bird Flu Risks for Air Travelers
Avoiding Serious Consequences from Air
Rage
Air Safety & Security
Aircraft Safety & Security
Airline Safety & Security
Airport Safety & Security
Fatal Events
Most Recent Fatal Events
U.S.
Passenger Issues
Fear of Flying
Top 10 Tips
Top 10 Questions
Air Rage
Travel Complaints
Personal Safety
Advice & Tips
Airport Security Issues
Prohibited Items
Baggage Issues
Child Safety
Other Advice
Air Safety Links
Air
Safety
Sites
Related Publications
Publications
AIR SAFETY & SECURITY World Review
AIRGUIDE AIRPORTS To Go
AIRLINE & AIRCRAFT FLEETS World
Review Online
COMMERCIAL AIRCRAFT World Review
|