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China asks local airlines to ground Boeing 737 Max

Dont try innocent when many times you insulted Chinese product without valid reasoning. This is called , have a taste of your own medicine.

At least China own made jet liner is not a killing machine unlike US B737 Max which development date is so fast but shabby work. Indeed made in USA crap, cheap ,low quality sub standard product. :enjoy:
You mean the COMAC C919 with junk avionics from Rockwell Collins and junk Engine from PW? Or ARJ21 with junk avionics from Rockwellcollins and Junk Engines from GE?:lol::lol:
 
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I am an aviation enthusiast..
So the best support you have for your 'Seems to me' is that you are an 'aviation enthusiast'. You have no experience in aviation other than being cheerful every time an aircraft passes by and that somehow gave you a good foundation on questioning the engineering of various subsystems on an aircraft.
 
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https://www.cnbc.com/2019/03/11/faa-boeing-737-max-planes-are-still-airworthy.html

"While it is highly unusual to have two fatal crashes of new aircraft so close together, analysts have cautioned that it is too early to know the cause of the Ethiopian Airlines crash or whether it is at all linked to the crash of the Lion Air flight last year."

Who cares about waiting for data when it comes to the US? Jumping to conclusion is good enough.
 
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Boeing should act responsible and ground the 737 Max 8

Source:Global Times Published: 2019/3/12

China's Civil Aviation Administration announced it would suspend operations for all Boeing 737 Max 8 aircraft. This is perhaps the first grounding decision made at the national level following the crash of an Ethiopian Airlines flight over the weekend. The suspension will result in huge losses, but it's people's lives that matter more.

Two Boeing 737s have crashed under similar circumstances within five months. The incidents raise questions over the new aircraft's problems. So far, very little has emerged from the US regarding the plane. Reaction from the US media has been softer than the tone that was used after the high-speed train crash in Wenzhou on July 23, 2011, with reports that raised doubt over the safety of China's advanced rail system.

Hopefully, Boeing will launch a full-scale investigation into what caused the crashes and discover all possible loopholes. The US plane manufacturer should also compensate the airline companies in China and elsewhere affected by the 737 grounding.

The cause of the Ethiopian Airlines crash remains unknown, but risks associated with the 737 Max 8 cannot be ignored. At this juncture, Boeing should take the initiative and issue a worldwide suspension the aircraft and shoulder the economic losses that would incur.

Under no circumstances should the 737 Max 8 resume operations until airline safety inspectors have pinpointed the reasons for the crashes and then make sure every plane is free of any risk. Such action would be viewed as the responsible thing to do.

A Boeing 737 Max 8 can carry over 100 passengers, so when it crashes, it's a devastating loss of life. Waiting for investigation results to come in before carrying out safety measures is not an option. It is imperative that precautionary efforts are implemented immediately.

Despite competition from plane manufacturer Airbus, Boeing has held what could be considered a worldwide monopoly within the global airline market. The company's position should require that it shoulder greater responsibilities than other manufacturing giants and not in an ttempt to weaken its efforts but rather to remove the risks found in their irreplaceable products.

On two occasions in less than six months, a new Boeing 737 Max-8 has crashed shortly after takeoff. This rate of frequency has shocked the public worldwide. Every airline that uses a Boeing airplane should send their people to the company's manufacturing headquarters to receive training if necessary. Whether it is discovered the crashes were caused by design defects or incomplete training, people will have reason to doubt that Boeing was responsible.

Following the Lion Air crash in Indonesia, Boeing officials said that investigators had found one of the "angle of attack" sensors on the 737 Max-8 had transmitted incorrect data.

Rather than worrying about losing money, Boeing needs to ground every 737 Max-8 worldwide.

The US airline manufacturer has made an outstanding contribution to the world's civil aviation industry since it was founded in 1916. It is undoubtedly one of the greatest companies of the 20th century. Currently, it is impossible to avert a plane crash. However, this should be Boeing's goal as technology advances. The company should feel humiliated by its current safety record based on the two recent airline tragedies alone.

Since 2017, Boeing has received 5,000 orders for the 737 Max-8 worldwide. It's not hard to imagine that China has been its biggest client. We strongly hope that the crashed Ethiopian Airlines passenger plane is the model's last fatal accident and that such tragedy will never happen again.

According to one report, the crash in Indonesia did not temper enthusiasm from other passenger plane companies. We hope Boeing won't be intoxicated with market trust. The company should regard such trust as a spur to never fail the market or human life.

http://www.globaltimes.cn/content/1141747.shtml
 
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So the best support you have for your 'Seems to me' is that you are an 'aviation enthusiast'. You have no experience in aviation other than being cheerful every time an aircraft passes by and that somehow gave you a good foundation on questioning the engineering of various subsystems on an aircraft.
Strawman argument. I'm not your punching bag old timer. If you do not have anything constructive to add; may I point you to another thread?

Gambit is right. Pulling Nose down during TO is ok thing to do, to gain more airspeed. Speed based controll maintains airspeed by tuning the pitch or angle-of-attack of the a/c while Takeoff (TO) and keeping thrust mostly unchanged, as its more efficient than thrust based speed control.
A nose pull down may also be avoid a stall condition (which every aircraft is susceptible) - the data would be from a stall warning indicator of some kind, either through an annunciation on the PFD and/or voice alerts.
FYI. TO and Landing are the most dangerous phases in a flight.

Rather than Gambit attacking people online; he should have a constructive discussion where people want to learn more about how things work; and as I mentioned earlier it was an honest question with no preconceived notions about US made products. I'm not here to pick fights as it is not my cup of tea.

Plus I haven't challenged aerodynamics in any of my posts. A stall can be initiated at any airspeed though; even higher ones.
What I specifically wanted to ask if a cascading failure is part of the problem; and if multiple redundant systems (sensors) failed to send sanitized data to the MCAS; which in turn took corrective action (fatal) to a situation which was non-existent.
 
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Airlines and regulators ground 737 MAX in wake of Ethiopian Airlines crash
Posted on: 2019-03-11 /

Some airlines and national aviation authorities have grounded their 737 MAX fleet in the wake of the crash of Ethiopian Airlines flight 302 on 10 March 2019. Thus far, Chinese and Indonesian regulators along with Ethiopian Airlines, Aeromexico, Cayman Airways, Comair, GOL, MIAT Mongolian Airlines, and Royal Air Maroc have temporarily halted 737 MAX flights.


Aerolineas Argentinas
Aerolineas Argentinas announced it will temporarily suspend operations of its five (5) 737 MAX 8 aircraft.

Aeromexico
Aeromexico has stated it will temporarily ground its 737 MAX fleet. The airline operates a fleet of six (6) 737 MAX 8 aircraft.

Cayman Airways
Cayman Airways has grounded their fleet of two 737 MAX 8, VP-CIW and VP-CIX. The airline took delivery of its second MAX 8 (-CIX) just last Thursday and has not yet sent it into commercial service.

Chinese Civil Aviation Administration
The Chinese Civil Aviation Administration has ground all 737-8 (737 MAX 8) aircraft belonging to domestic operators until further notice. The below table includes all B-registered 737 MAX 8 aircraft in our database (and may include aircraft registered, but not yet delivered to the customer).

Ethiopian Airlines
Ethiopian Airlines has grounded its four remaining 737 MAX 8 aircraft. ET-AVI, ET-AVK, ET-AVL, and ET-AVM remain in Addis Ababa at this time.

GOL Linhas Aéreas
GOL Linhas Aéreas of Brazil has grounded their 737 MAX fleet of seven aircraft as of 20:00 local time 11 March. In its announcement GOL stated that its MAX fleet has conducted 2,933 flights totaling more than 12,700 hours without incident.

Indonesia civil aviation authority
Indonesia’s civil aviation authority has ordered Indonesian operated 737 MAX grounded until further notice. The Indonesian order affects 10 Lion Air aircraft and one Garuda Indonesia aircraft.

MIAT Mongolian Airlines
MIAT Mongolian Airlines has grounded their sole 737 MAX 8, registered EI-MNG.

Royal Air Maroc
Reuters, citing a Royal Air Maroc official speaking on the condition of anonymity, says that the airline has temporarily grounded its 737 MAX aircraft. The airline has taken delivery of two MAX 8s, CN-MAX and CN-MAY, but has only put -MAX into service thus far.

Singapore civil aviation authority
The Civil Aviation Authority of Singapore (CAAS) has temporarily suspended operation of the Boeing 737 MAX through Singapore, effective 1400 local time (0600 UTC) 12 March.

Singapore carrier Silk Air operates six (6) 737 MAX 8 aircraft. Other airlines that also operate 737 MAX aircraft in/out of Singapore will be affected as well, including China Southern Airlines, Garuda Indonesia, Shandong Airlines and Thai Lion Air. At the moment, Thai Lion Air is the only one of those airlines still operating the 737 MAX.

https://www.flightradar24.com/blog/...-737-max-in-wake-of-ethiopian-airlines-crash/
 
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Strawman argument. I'm not your punching bag old timer. If you do not have anything constructive to add; may I point you to another thread?
I have added far more constructive information about this issue than you will ever be able to do. When you used the word 'shoddy', I knew right off you are not serious about anything constructive. You are here to do one thing -- troll US.
 
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Airlines and regulators ground 737 MAX in wake of Ethiopian Airlines crash
Posted on: 2019-03-11 /

Some airlines and national aviation authorities have grounded their 737 MAX fleet in the wake of the crash of Ethiopian Airlines flight 302 on 10 March 2019. Thus far, Chinese and Indonesian regulators along with Ethiopian Airlines, Aeromexico, Cayman Airways, Comair, GOL, MIAT Mongolian Airlines, and Royal Air Maroc have temporarily halted 737 MAX flights.


Aerolineas Argentinas
Aerolineas Argentinas announced it will temporarily suspend operations of its five (5) 737 MAX 8 aircraft.

Aeromexico
Aeromexico has stated it will temporarily ground its 737 MAX fleet. The airline operates a fleet of six (6) 737 MAX 8 aircraft.

Cayman Airways
Cayman Airways has grounded their fleet of two 737 MAX 8, VP-CIW and VP-CIX. The airline took delivery of its second MAX 8 (-CIX) just last Thursday and has not yet sent it into commercial service.

Chinese Civil Aviation Administration
The Chinese Civil Aviation Administration has ground all 737-8 (737 MAX 8) aircraft belonging to domestic operators until further notice. The below table includes all B-registered 737 MAX 8 aircraft in our database (and may include aircraft registered, but not yet delivered to the customer).

Ethiopian Airlines
Ethiopian Airlines has grounded its four remaining 737 MAX 8 aircraft. ET-AVI, ET-AVK, ET-AVL, and ET-AVM remain in Addis Ababa at this time.

GOL Linhas Aéreas
GOL Linhas Aéreas of Brazil has grounded their 737 MAX fleet of seven aircraft as of 20:00 local time 11 March. In its announcement GOL stated that its MAX fleet has conducted 2,933 flights totaling more than 12,700 hours without incident.

Indonesia civil aviation authority
Indonesia’s civil aviation authority has ordered Indonesian operated 737 MAX grounded until further notice. The Indonesian order affects 10 Lion Air aircraft and one Garuda Indonesia aircraft.

MIAT Mongolian Airlines
MIAT Mongolian Airlines has grounded their sole 737 MAX 8, registered EI-MNG.

Royal Air Maroc
Reuters, citing a Royal Air Maroc official speaking on the condition of anonymity, says that the airline has temporarily grounded its 737 MAX aircraft. The airline has taken delivery of two MAX 8s, CN-MAX and CN-MAY, but has only put -MAX into service thus far.

Singapore civil aviation authority
The Civil Aviation Authority of Singapore (CAAS) has temporarily suspended operation of the Boeing 737 MAX through Singapore, effective 1400 local time (0600 UTC) 12 March.

Singapore carrier Silk Air operates six (6) 737 MAX 8 aircraft. Other airlines that also operate 737 MAX aircraft in/out of Singapore will be affected as well, including China Southern Airlines, Garuda Indonesia, Shandong Airlines and Thai Lion Air. At the moment, Thai Lion Air is the only one of those airlines still operating the 737 MAX.

https://www.flightradar24.com/blog/...-737-max-in-wake-of-ethiopian-airlines-crash/

Boeing must be accountable for the financial loss due to grounding.
 
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When you used the word 'shoddy', I knew right off you are not serious about anything constructive. You are here to do one thing -- troll US.
Whatever. Welcome to my ignore list.

Meanwhile:
Similar symptoms to Lion Air crash in October raise concerns over automated safety system.

In the case of the Lion Air crash, the MCAS malfunctioned because of a faulty angle-of-attack (AOA) sensor. The sensor caused MCAS' algorithms to act as if the aircraft was entering a stall, automatically pushing the nose of the aircraft down—a condition known as a "stabilizer runaway." A Boeing safety bulletin issued after the Lion Air crash stated, "In the event of erroneous AOA data, the [MCAS] can trim the stabilizer nose down in increments lasting up to 10 seconds."
After the Lion Air crash, American Airlines pilot union spokesperson and 737 pilot Dennis Tajer said, "in the previous model of the 737, pulling back on the control column, Boeing says, will stop a stabilizer runaway.” But he noted that this doesn't work with the new 737 MAX system—the pilots have to disable the stabilizer.
 
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Whatever. Welcome to my ignore list.
You are a nobody to make your 'ignore' list something to be fearful of. This is a publicly accessible forum. That means your troll posts can be -- and will be -- debunked to your embarrassment. You did not even bothered to read your source because the answer to the subject is contained within. That is why you are nothing more than a troll.
 
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Australia, Singapore ban Boeing 737 MAX jets, more airlines ground plane

Australia and Singapore on Tuesday banned Boeing 737 MAX planes from their airspace and airlines around the world grounded the jets following a second deadly accident in just five months.

On Sunday a new Ethiopian Airlines 737 MAX 8 went down minutes into a flight to Nairobi, killing all 157 people on board. It came after a Lion Air jet of the same model crashed in Indonesia in October, killing 189.

Investigators have recovered the black box flight recorders from the Ethiopian Airlines plane, which went down near Addis Ababa carrying passengers and crew from 35 countries -- including some two dozen UN staff.

US regulators have ordered Boeing to make urgent improvements to the model and insisted they would take action if safety issues are detected.

But it was not enough to reassure aviation authorities in other countries, with Singapore and Australia temporarily banning all 737 MAX planes from their airspace.

China, a hugely important market for Boeing, had already ordered domestic airlines to suspend operations of the plane Monday, as did Indonesia.

Aviation regulators in Singapore, a global air travel hub and popular transit point for long-haul travellers, said they would work with the country's main airport and "the affected airlines to minimise any impact to travelling passengers".

One Singapore airline, SilkAir, uses 737 MAX aircraft while a handful of foreign airlines operate the planes in the city-state.

Australia's regulator said it regretted "any inconvenience to passengers but believes it is important to always put safety first". Only one Fijian airline is affected by the Australian ban.

South Korea meanwhile ordered the only airline in the country that operates the jets to suspend operations of its two MAX 8s. Argentina's flag carrier also grounded five MAX 8 aircraft on Tuesday, as did airlines in countries including South Africa, Brazil and Mexico.

But several airlines have said they are not cancelling MAX 8 flights, while US carriers appear to maintain confidence in the manufacturer.

"The Boeing 737 MAX is a highly sophisticated aircraft," said India's SpiceJet, which has 13 of the model 8 variant in its 75-strong fleet.

"It has flown hundreds of thousands of hours globally and some of the world's largest airlines are flying this aircraft," it said in a statement.

- 'Significant industry impact' -

Boeing has described the MAX series as its fastest-selling family of planes, with more than 5,000 orders placed to date from about 100 customers.

But not since the 1970s -- when the McDonnell Douglas DC-10 had successive fatal incidents -- has a new model been involved in two deadly accidents in such a short period.

The weekend crash sent Boeing shares nosediving as much as 12 percent on Monday.

"I think the impact for the industry is significant," said Gerry Soejatman, a Jakarta-based aviation analyst.

"We have a new type of aircraft -- that type of aircraft has only been in service for two years -- and ... we have two accidents with seemingly similar circumstances."

The plane involved in Sunday's crash was less than four months old, with Ethiopian Airlines saying it was delivered on November 15.

It went down near the village of Tulu Fara, some 40 miles (60 kilometres) east of Addis Ababa.

Inhabitants of the remote area looked on from behind a security cordon as inspectors searched the crash site and excavated it with a mechanical digger.

The single-aisle jet had left a deep, black crater.

Ethiopian Airlines said the pilot was given clearance to turn around after indicating problems shortly before the plane disappeared from radar.

The airline's chief executive Tewolde GebreMariam said the plane had flown in from Johannesburg early Sunday, spent three hours in Addis and was "dispatched with no remark", meaning no problems were flagged.

The crash cast a pall over a gathering of the UN Environment Programme as it opened in Nairobi -- at least 22 staff from several UN agencies were on board the doomed flight.

Delegates hugged and comforted one another as they arrived at the meeting with the UN flag flying at half-mast.

Other passengers included tourists and business travellers.

Kenya had the highest death toll among the nationalities on the flight with 32, according to Ethiopian Airlines. Canada was next with 18 victims.

There were also passengers from other countries including Ethiopia, Italy, the US, Britain and France.

https://www.yahoo.com/news/us-ready-immediate-action-ethiopia-plane-crash-223647751.html
 
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