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Monday, August 4, 2008

The Australian Civil Aviation Safety Authority (CASA) has announced it will take the unprecedented step of conducting a special review of flag carrier Qantas after three separate emergencies in two weeks.

In the latest incident, a Boeing 767 headed from Sydney to Manila was forced to turn back yesterday after ground staff at the airport noticed what they believed to be smoke emanating from the jet’s wing as it departed. It turned out to be fine spray from a hydraulic fluid leak, and the aircraft brought its 200 passengers back down safely at around 3:00 p.m., with ARFF trucks on standby.

Despite the aircraft being forced to turn around, the pilot did not request a priority landing and so Qantas refused to describe the event as an emergency landing.

Qantas has a largely good safety record, having never lost a jet aircraft or had a fatality on board one. Their last fatal accident was in 1951. However, recently two other events have led to some questioning of Qantas from within the aviation industry.

Last Monday, a Qantas Boeing 737-800 returned to Adelaide after experiencing pressurization problems caused by the failure of an undercarriage door to retract properly. This followed the July 25 accident on board Flight 30, a Boeing 747 headed from London to Melbourne that had just made a stopover in Hong Kong, in which an exploding oxygen cylinder caused an explosive decompression. An emergency landing was performed in Manila, with a hole blown in the aircraft’s side.

According to Qantas staff, the problems are not a new thing. Qantas flight attendants have asked senior management for an emergency meeting over these latest events. The Flight Attendants’ Association of Australia’s president Steven Reed said “We want some assurances from the company that these are isolated incidents. Or are they something we should be concerned about? We need to meet with the company at a senior level to have these assurances.” Such a meeting is said to be likely within a week.

Qantas engineers have been complaining for some time about maintenance issues, saying that cost-cutting and outsourcing are compromising the quality of maintenance. Much work is now being done in countries such as Hong Kong, Malaysia and the Philippines. According to one engineering union official, recent incidents linked to outsourced maintenance include a failure of emergency lighting and flight attendants in the galley being electrocuted by faulty wiring.

According to the Australian Licensed Aircraft Engineers’ Association’s assistant federal secretary, Wayne Vasta, there has been a recent “change in culture” at Qantas, although he did say it would be inappropriate to blame only outsourcing. He said that while previously Qantas engineers had simply attempted to do the best they could, “Now it appears we have got to do the best job we can possibly do, within a budget.” He also expressed a welcoming of the CASA probe.

Qantas’ engineers are currently lobbying for a pay rise, and say the airline is risking safety with cost cuts.

Peter Gibson, spokesperson for CASA, said no trouble had been spotted in recent safety audits of Qantas, but they felt it ‘prudent’ to investigate given the recent string of incidents. He acknowledged that the review is unprecedented in CASA’s history, and announced the probe would be headed by senior official Mick Quinn.

“We want to look at their safety systems to make sure that the systems are operating the way they should. All these things are stated in manuals. We want to make sure that what is in the manuals is being done,” Gibson told reporters. He said the investigation should take around two weeks.

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.

Sunday, December 11, 2005

A series of large explosions have occurred close to Hemel Hempstead Hertfordshire, UK. The source of the explosions has been confirmed as the Hertfordshire Oil Storage Terminal (HOSL), Hemel Hempstead, known locally as the Buncefield complex. Up to 150 fire fighters are reported to be at the scene with 10 fire appliances and 1 specialist foamer.

The first ‘blast’ was heard near Hemel Hempstead on Sunday 11 Dec at 6 am. Further smaller explosions followed at 6:24am , 6:26am, 6:30am. BBC News 24 reported an additional, fourth large explosion. Hertfordshire Police Constabulary are currently treating the explosion as an accident.

Reports say the explosion, which registered 2.4 on the Richter scale, was heard as far away as Oxford, and Whitehall, Central London which is 60km (38 miles) away. Eyewitness statements report that the explosion was heard from at least 160km (100 miles) away and as far away as France and The Netherlands. Pilots reported noticing the blast from the North Sea and the West Country area of the UK. The M1 motorway which runs close by has been closed in both directions near the blast which is causing travel chaos as other roads become congested.

Malcom Stewart, a BBC News24 eyewitness who is a tanker driver for the site has reported that the site supplies several oil companies and is a joint operation between Total UK and Texaco, it is also used by BP, Shell and the British Pipeline association. The complex is not a refinery but a storage facility for refined petroleum awaiting distribution to airports and filling stations. The eyewitness reports that the depot has approximately 20 tanks which can hold about 3 million gallons (11 million litres or 70,000 barrels) each. Another News24 eyewitness has just reported that he has seen at least 5 of these tanks on fire.

The depot operates on a 24 hour basis and is split into 2 parts – aviation fuel and domestic fuel. A number of eyewitnesses have reported on UK news that the aviation fuel side appears to be the part of the site that has been affected.

Local authorities were not immediately available for comment but there have been reports of casualties.

Some reports on live television state that, “Several other neighbours said they did see a plane go into the depot.” BBC News 24 were also discussing the idea a possible plane crash as the cause of the explosions. Hertfordshire police have now gone on the record to say that there is no plane involved (BBC News24).

The police have issued a contact number 0800 096 0095 and asked that people do not call the emergency services in Hertfordshire directly unless it is an emergency.

In addition to being an oil storage depot, it is a major hub on the UK oil pipeline network with pipelines to Killingholme Lindsey Oil Refinery (LOR), Humberside (10 inch), Merseyside (10 and 12 inch), Coryton on the Thames Estuary (14 inch) and Heathrow (6 and 8 inch) and Gatwick airports radiating from it.

The disaster is believed to be the worst explosion at a petrochemical plant in the UK since the Flixborough disaster of 1974.Hertfordshire’s Chief Fire Officer Roy Wilsher said: “This is possibly the largest incident of its kind in peacetime Europe.”

A firefighting press officer said that they are stock piling foam from neighboring regions for a prolonged attach which they hope will stop the spread of the fire, however, the inferno itself will have to burn out which could take between 24 hours and a few days.

Despite the authorities saying that there is no need to panic buy petrol, filling stations have had above average queues since this morning and some small garages have ran out.

Deputy Prime Minister John Prescott has visited the scene.

Saturday, April 18, 2015

Douglas Mark Hughes, a mailman for the United States Postal Service, landed his gyrocopter on the west lawn of the US Capitol on Wednesday. He told his friends he was going to do this.

The mailman was flying his aircraft into restricted airspace when he landed on the lawn. He was immediately arrested. His stated intention was to deliver letters to all members of Congress concerning campaign finance statutes. As a protective measure, the Capitol complex went on lockdown for a time.

Hughes told the Tampa Bay Times of his intentions to fly the light-weight aircraft. The paper said they alerted the Secret Service and the United States Capitol Police, but FOX News reported some disagreement about this from Capitol Police. Hughes had no contact with air traffic controllers during the incident.

The mailman said his intention was non-violent, but he wanted to spread the word about his cause. The Secret Service questioned him some months before the incident.

Hughes was charged under United States Code Title 49, concerning transportation. He was released from jail under conditions including that he must not visit the US Capitol. He is currently under house arrest.

Besides this low-flying aircraft incident, a government employee crashed a drone onto the White House property a few months ago. Also, the Secret Service conducted drone exercises to combat against possibly rogue light-weight aircraft last month.

The airspace above the Washington D.C. region is protected below 18,000 feet MSL (Mean Sea Level) with the roughly fifteen-nautical-mile-radius Flight Restricted Zone which surrounds the VHF omnidirectional range located at Washington National Airport, which handles regularly scheduled commercial flights. Pilots are not allowed to fly in the Washington, DC Metropolitan Area Special Flight Rules Area, which includes the Flight Restricted Zone, unless they have FAA authorization and are able to maintain effective communication with air traffic control with a two-way radio. Pilots must obtain a transponder code when flying under visual flight rules in this area. Law enforcement and air ambulance operations are exempted from the FAA authorization requirement if they can maintain communications with air traffic control.

The FAA was investigating this incident, along with law enforcement agencies. Police found no explosives in the aircraft.

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.

Thursday, February 18, 2010

A small plane crashed into a building, which was one of the Echelon office complex, in north Austin, Texas this morning at 09:56 local time (1456 UTC).

Federal officials say the plane owner was Joseph Andrew Stack III; presumed to be the pilot who set his house on fire on the 1800 block of Dapplegrey Lane in north Austin an hour earlier. He then drove to Georgetown Municipal Airport, approximately 20 miles away, took off and then crashed his private plane into the Echelon complex.

The Federal Aviation Authority indicated the light aircraft was a Piper Cherokee PA-28, as did news reports and eye witnesses. The FAA said the plane had no flight plan and was under Visual Flight Rules.

Mr. Stack committed suicide, and a suicide note has been located. Mr. Stack’s suicide note mentions anti-government and anti-corporate ideals, as well as problems with the Internal Revenue Service and that he lost money in the Enron scandal. Although the incident was intentional, a Department of Homeland Security official said that terrorism is not suspected. The online host of the note, T35 Hosting, later removed it in its entirety after the FBI requested its censorship. However, Wikinews has preserved the full text of the letter.

Austin Fire Department reported around 1100 local time (1600 UTC) that two people were transported to local hospitals and one was unaccounted for. One man was admitted at a local hospital under serious condition for smoke inhalation. The other man suffered from second-degree burns on 25% of his back and has been transported by helicopter to Brooke Medical Center in San Antonio and is said to be in stable condition.

The seven-story Echelon Building One is located on 9430 Research Boulevard and contains Internal Revenue Service offices. The Echelon building complex houses a number of federal offices, including Central Intelligence Agency and Federal Bureau of Investigation. Research Boulevard is the service road of U.S. Route 183. The incident has caused severe backups on both Research Boulevard and Route 183.

A witness told The Austin Statesman that he saw the plane flying lower than usual, then it made a sharp turn and hit the building.

An Austin County EMS official, James Shamard, said that smoke is visible from at least a mile from the crash site. Another official for the Austin Fire Department said that two persons who were working in the building are still unaccounted for.

MSNBC reports that there was some form of domestic dispute between Mr. Stack and his wife before the incident. He then reportedly used gasoline to light his house on fire. When the fire department arrived, they rescued his wife and teenage daughter.

According to Jerry Cullen, a pilot and former flight instructor who witnessed the crash, the plane was traveling at high speed at time of impact.

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.

Thursday, October 23, 2014

Just days away from Halloween, Wikinews interviewed Kristian Hanson, producer-director of independent slasher film Sledge. The film has been a recent source of discussion in horror fan circles, primarily due to its production budget of only US$800. Sledge is Hanson’s fourth film to direct, according to Internet Movie Database.

Wednesday, January 20, 2010

The University of Oxford is preventing students from accessing the legal, peer-to-peer online music service Spotify. Officials in the university’s Computer Services department (OUCS) say too much of the network’s bandwidth is taken up by people using such services, slowing down the network for others.

Spotify, which has more than 2.7 million users in the UK, allows users to listen to music stored on other users’ computers over the internet, either for free with adverts, or without adverts for a monthly fee. While the university allows students to use its network for free for academic purposes, it places restrictions on peer-to-peer sites, where data is shared between many connected computers rather than being downloaded from a central source, as these require more bandwidth.

Students were said to be unhappy with the move. One said that she was “shocked” at the ban, another called it “discrimination against music lovers”, and another said that he could “see nothing wrong” with students using Spotify, as “it’s not as if every single person is on it every single hour of the day.” There were reports, however, that the ban had inconsistencies, with students at some colleges still able to connect to the service.

A university spokeswoman said: “The university provides free internet access for students because it’s an educational resource. If they want to use it recreationally as well that’s no problem unless it uses so much bandwidth that it slows the network down.” OUCS added, “Bandwidth that seems insignificant for one user will soon add up when scaled up to the many thousands of users connected to Oxford University’s networks. It is one thing attempting to justify a network upgrade on the basis of a genuine academic requirement, such as the petabytes of data expected from CERN when their latest collider comes online.”

In response, Spotify said: “We’re sad to think of our student friends at Oxford University unable to listen to Spotify whilst on campus. We’re talking to the university about how we can help them give the music back to their students.”