Air Asia flight from Indonesia to Singapore vanishes

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http://www.stuff.co.nz/world/asia/64507189/air-asia-flight-from-indonesia-to-singapore-vanishes

Search and rescue operations are underway after an AirAsia flight from Indonesian to Singapore with more than a hundred people on board lost contact with air traffic control.

Indonesian transport officials said the aircraft lost contact with the Jakarta air traffic control tower at 6.17am local time (11.17am NZT).

A spokesman said the last communication from the pilot was asking permission to change the height from 32,000 to 34,000 feet due to bad weather. It had been described as "an unusual route".
If it lost contact at 11.17am NZT, and it is now 6.12pm NZT, that is way over six hours that it has been missing.
 

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  • #4
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Ugh, so much for "turbulence never brings down a plane"
 
  • #5
Borg
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http://avherald.com/h?article=47f6abc7
A radar screenshot leaked from AirNav Indonesia shows the aircraft had turned left off the airway and was climbing through FL363, the speed over ground had decayed to 353 knots however.
indonesia_asia_a320_pk-axc_java_sea_141228_1.jpg
 
  • #6
mheslep
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Ugh, so much for "turbulence never brings down a plane"
Jeez, who goes round making that statement?
 
  • #7
Astronuc
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- Contact with the plane was lost around an hour after departure, somewhere over the Java Sea between Belitung island and Pontianak, on Indonesia's part of Kalimantan island. This happened a few minutes after the pilot requested to Indonesia's air traffic control — but was declined — to fly higher to avoid stormy weather.

- Ongoing search and rescue operations with military assets deployed from Indonesia, Singapore, Malaysia and most recently Australia resumed on Monday morning scouring both the land and sea area in the northern and eastern parts of Belitung island.
https://sg.news.yahoo.com/contact-with-airasia-flight-qz8501-bound-for-singapore-from-surabaya-lost-033803688.html
 
  • #8
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2014 ....The worst year for aviation ....for now.
2 more days to go ,keep your fingers crossed.
 
  • #9
Astronuc
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Lost plane's request to change course was denied
http://news.yahoo.com/indonesian-official-prospects-bleak-missing-jet-065646556.html [Broken]

. . . .
The last communication from the cockpit to air traffic control was a request by one of the pilots to climb from 32,000 feet (9,754 meters) to 38,000 feet (11,582 meters) because of the rough weather. The tower was not able to immediately comply because of the other planes, said Bambang Tjahjono, director of the state-owned company in charge of air traffic control.

When planes confront storms, they generally veer left or right, said Sarjono Joni, a former pilot with a state-run Indonesian carrier. A request to climb would most likely come if the plane were experiencing heavy turbulence, he said, and heavy traffic is not unusual for any given airspace.
. . . .
https://www.yahoo.com/travel/airasia-crash-begs-question-can-severe-weather-106436287397.html
“Airplanes can fly through weather,” explains John Goglia, the only FAA-licensed aircraft mechanic who served as a board member of the National Transportation Safety Board. “But it’s a concern. That’s why the airlines have dispatchers and meteorologists.” He notes that severe weather can be quite hazardous during takeoff and landing, but requests for altitude changes inflight to avoid worsening weather — such as the request by the crew of QZ8501 — are quite common.
 
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  • #10
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http://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objectid=11380170

Aviation experts have speculated that the flight may have encountered "black storm cells" which caused a build-up of ice on airspeed senors known as pitot tubes.
The A320, while sophisticated, is not equipped with the latest radar, Mr Thomas said.

The radar used by the A320 can sometimes have problems in thunderstorms and the pilot may have been deceived by the severity of these particular ones.

The latest technology radars, which were pioneered by Qantas in 2002, can give a more complete and accurate reading of a thunderstorm, but they will not be certified for the A320 until next year.

"If you don't have what's called a multi-skilled radar you have to tilt the radar yourself manually, you have to look down to the base of the thunderstorm to see what the intensity of the moisture and the rain is, then you make a judgment of how bad it is.

"It's manual, so it's possible to make a mistake, it has happened."
 
  • #11
russ_watters
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2014 ....The worst year for aviation ....for now.
2 more days to go ,keep your fingers crossed.
Worst based on what metric?

In terms of total deaths, it is the worst in the past 8, but that's it (1320). By number of airliner crashes, it is the lowest in 86 years (111). It just happens that several large planes crashed.
http://www.cnn.com/2014/12/29/travel/aviation-year-in-review/index.html?hpt=hp_t1

Of course, if you are an American, you may object to including planes that were shot down and planes that were from 3rd world countries in the calculation of your safety. For US domestic airlines, there has only been one fatal crash in the past 4 years, a UPS cargo plane, killing two people, in 2013. https://ntsb.gov/news/2014/140915b.html [Broken]

So I'd rate 2014 to be a pretty safe year by most metrics.
 
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  • #12
russ_watters
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  • #13
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I thought planes had heaters for the pitot tubes now
 
  • #14
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The last plane that went missing in Asia made news that was followed constantly by CNN for 30 days straight. This time the pilot asked to change direction to avoid a storm and was allowed to do so. When the pilot asked to increase altitude to 38,000 ft. the request was denied because another plane was at that altitude. More in the link.

http://www.bbc.com/news/world-asia-30626734
 
  • #15
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Worst based on what metric?
The worst year since i started watching news ,that's somewhat near 8 years.
 
  • #16
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When plane crashes there are no injured passengers
 
  • #17
Borg
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  • #19
lisab
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So sad. Condolences to the passengers' grieving family and friends :(.
 
  • #20
Borg
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The news media have been heartless in their efforts to get pictures of the grieving relatives. Swarms of reporters shoving cameras in the faces of relatives as they try to get to the airport crisis area.

What idiot decided that it would be a good idea to show live news coverage to the relatives of a search where it was highly probable that floating bodies would eventually be spotted? Oh, so sorry that you saw your dead relatives floating in the water. We promise not to show that again but we'll be sure to show endless video of the hysterical and fainting relatives that saw it.

Reminds me of the Eagles song Dirty Laundry.
We got the bubble headed
Bleached blonde
Comes on at five
She can tell you 'bout the plane crash
With a gleam in her eye
It's interesting when people die
Give us dirty laundry

Can we film the operation
Is the head dead yet
You know the boys in the newsroom
Got a running bet
Get the widow on the set
We need dirty laundry
 
  • #21
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I can't understand the mentally of showing images of floating dead bodies. I certainly do not want to see them. I believe it was reported when one image was shown a lady had to be escorted out of the room - still screaming.
 
  • #22
Borg
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I can't understand the mentally of showing images of floating dead bodies. I certainly do not want to see them. I believe it was reported when one image was shown a lady had to be escorted out of the room - still screaming.
AirAsia Relatives in Shock as Indonesian TV Airs Images of Floating Body
when graphic news images of a body were shown on TV screens set up in family waiting areas, dozens burst into hysterical wailing. At least two people fainted and were carried out to waiting ambulances.
Police officers in blue berets prevented dozens of press from entering the building, but that didn’t stop journalists pressing up against the windows. Inside, food cartons and other paper objects were torn up and used to cover the glass to prevent media from looking in.
 
  • #23
Borg
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A Washington Post article suggests that that the plane may have stalled after making a very steep climb.
Radar records, however, suggest that the plane made an “unbelievably” steep climb before it crashed, raising speculation that the aircraft could have stalled during the ascent, the Reuters news agency reported, citing a source familiar with the probe’s initial findings.

“So far, the numbers taken by the radar are unbelievably high. This rate of climb is very high, too high. It appears to be beyond the performance envelope of the aircraft,” Reuters quoted the source as saying.
 
  • #24
russ_watters
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I thought planes had heaters for the pitot tubes now
It talks about recommendations in the wiki link, but it isn't clear to me if they are required. The thing is, this problem is pretty ordinary and airplanes have lots of different ways to tell how fast they are going and what they are doing, so the loss of airspeed reliability from the pitot tube shouldn't be much more than an annoyance.
 
  • #25
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It talks about recommendations in the wiki link, but it isn't clear to me if they are required. The thing is, this problem is pretty ordinary and airplanes have lots of different ways to tell how fast they are going and what they are doing, so the loss of airspeed reliability from the pitot tube shouldn't be much more than an annoyance.
True but it might be more than annoyance of you are in severe turbulence
 

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