[b0g]

Is it 12 miles or 12 km? Was this done by Google translation...?
----------

The place where the wingtip was found was 12 miles, that's what I heard in a video, which is 19.31 km from the place of impact.
tracing back 19.31 km based on air speed, gives this timestamp:
22-03-21 06:21:14 CES5735 23.35 110.92 17325 429 123 -30976 33 33 1024
-30976 = vertical speed feet / min , so it broke off around the maximum fall rate
------------

Another realistic measure is a distance based on the difference in location (instead of air speed).
Pitot tubes work by measuring frontal and side way air pressures to get a speed value, but this works only correctly if the tubes are in line with the air stream.
So in case the flight direction deviates from the heading, the actual speed value is not correct (too low). Note that a big aircraft has redundant pitot tubes!

Based on this info I calculated speed by haversin distance.
In 15 seconds time, there was a difference in these 2 distances of 500 meters, based on the difference in locations or the pitot tube airspeed. This happened during a descend of 127.5 m, from an altitude of 8600 to 8175 feet. this is a 13% lower speed measure vs based on gps locations.

You can find that an angle of 30° between flight direction and pitot tube orientation can have a 13% lower speed reading.

[Azimuth]

关于“3•21”东航MU5735航空器飞行事� �调查初步报告的情况通报
微信图片_20220420172905.png

　　2022年3月21日，东方航空云南有限� ��司波音737-800型B-1791号机，执行MU5735昆明至广州航班，� ��广州管制区域巡航时，自航路巡航高 度8900米快速下降，最终坠毁在广西壮� ��自治区梧州市藤县埌南镇莫埌村附近 。飞机撞地后解体，机上123名旅客、9� ��机组成员全部遇难。

　　根据《国际民用航空公约》规定� �在事故之日起30天内，调查组织国须� �国际民航组织和参与调查国发送调查� ��步报告，其内容通常为当前所获取的 事实信息，不包括事故原因分析及结� �。目前《“3·21”东航MU5735航空器飞� �事故调查初步报告》已完成，报告主� ��包括飞行经过、机组机务人员、适航 维修、残骸分布等事实信息。主要情� �如下：

　　飞机于北京时间13:16从昆明长水机 场21号跑道起飞，13:27上升至巡航高度8 900米,14:17沿A599航路进入广州管制区,14: 20:55广州区域管制雷达出现“偏离指令 高度”告警，飞机脱离巡航高度，管� �员随即呼叫机组，但未收到任何回复� ��14:21:40雷达最后一次记录的飞机信息� ��：标准气压高度3380米，地速1010千米/小时，航向117度。随后，雷达信号消� �。

　　事故现场位于广西壮族自治区梧� �市藤县埌南镇莫埌村附近一个东南至� ��北走向的山谷中。现场可见面积约45� ��米、深2.7米的积水坑，判定为主撞击 点，位置为北纬23°19′25.52″，东经111 °06′44.30″。飞机残骸碎片主要发现� �撞击点0°至150°方位范围内的地面及� �下。距主撞击点约12公里处发现右翼� �小翼后缘。事故现场山林植被有过火� ��迹。现场发现水平安定面、垂直尾翼 、方向舵、左右发动机、左右大翼、� �身部件、起落架及驾驶舱内部件等主� ��残骸。所有残骸从现场搜寻收集后， 统一转运到专用仓库进行清理、识别� �按照飞机实际尺寸位置对应摆放，便� ��后续检查分析。

　　经调查

1.当班飞行机组、客舱机组和维修放行 人员资质符合要求；

2.事故航空器适航证件有效，飞机最近 一次A检（31A）及最近1次C检（3C）未超 出维修方案规定的检查时限，当天航� �和短停放行无故障报告，无故障保留� ��

3.机上无申报为危险品的货物；

4.此次飞行涉及的航路沿途导航和监视 设施、设备未见异常，无危险天气预� �；

5.在偏离巡航高度前，机组与空管部门 的无线电通信和管制指挥未见异常，� �后一次正常陆空通话的时间为14:16；� �上两部记录器由于撞击严重受损，数� ��修复及分析工作仍在进行中。

　　后续，技术调查组将依据相关程� �继续深入开展残骸识别、分类及检查� ��飞行数据分析、必要的实验验证等调 查工作，科学严谨查明事故原因。

04-20 17:25:20

全部371
评论86
30490
04-20 17:27
Cary_aviation-飞友 航空爱好者
赞

04-20 17:29
jyl小蒋-运行管控
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04-20 17:30
芜湖
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04-20 17:31
皮骆驼-飞行
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04-20 17:31
对方正在输入-安检
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04-20 17:32
厦门起落
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04-20 17:32
奥利利喔-民航爱好者
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04-20 17:32
再借地理书
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04-20 17:32
怪兽-地面服务
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04-20 17:32
China战鹰-品保部现场组长
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04-20 17:32
东海渔翁-安检
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04-20 17:33
累-地面服务
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04-20 17:34
佚名-飞行
优秀，提前通报了

04-20 17:34
简单-地面服务
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04-20 17:34
一缕清泉-航空气象
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04-20 17:35
漂洋过海来揍你-飞行
我感觉就是又读了一遍新闻

04-20 17:35
୧୨-其他
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04-20 17:36
佚名-安检
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04-20 17:36
口袋里的天空-空乘
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04-20 17:36
唐娜-空乘
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04-20 17:37
佚名-机务
那失事原因呢？

04-20 17:37
泡泡糖
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04-20 17:37
我
通报了又感觉没有通报…

04-20 17:38
佚名-地面服务
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04-20 17:38
。。-地面服务
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04-20 17:38
铁名-地勤公司
好像说了些什么，又好像什么都没说

04-20 17:38
冬冬-运行管控
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04-20 17:38
加勒比海盗-机务
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04-20 17:38
疯疯颠颠的小情绪-民航爱好者
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04-20 17:39
Fang-空乘
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04-20 17:39
佚名-现场
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04-20 17:40
HO-机务
这些东西貌似3.21就知道了

04-20 17:40
佚名-地面服务
等于没说……

04-20 17:41
佚
回复漂洋过海来揍你：你真是飞行吗� �对于正常的失事调查时间没点数吗，� ��级报告，你想看点啥������

04-20 17:41
佚名
还是在澄清飞机没毛病，航空公司没� �病，无他。

04-20 17:42
三金天上飘-飞行
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04-20 17:42
JohnZ-飞行
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04-20 17:42
卡里姆先森
现在是按照要求和惯例出一个报告，� �是要耐心等待黑匣子数据分析后的报� ��。 ​​​

04-20 17:42
佚名
好像…嗯…哦…啊，咦咦咦，and so on

04-20 17:42
佚名-地面服务
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04-20 17:43
佚名
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04-20 17:43
舒克开灰机
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04-20 17:43
佚
回复漂洋过海来揍你：这只能说明媒� �发达，你行你上，你咋不是航科院院� ��

04-20 17:43
半烟-安全监察员
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04-20 17:43
别唧唧歪歪-空乘
特别认真的读了一遍 好像说了什么 又好像什么都没说……

04-20 17:43
佚名-安检
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04-20 17:43
Stanley-机务
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04-20 17:44
佚名-其他
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04-20 17:44
爱吃西红柿-机务
说了等于没说

04-20 17:45
Iridescent

[Azimuth]

there's the untranslated one

[kellyhound]

US investigators believe someone on board deliberately crashed a China Eastern flight in March, the Wall Street Journal reported Tuesday, in what was China's deadliest air disaster in decades.

China Eastern flight MU5375 was travelling from Kunming to Guangzhou on March 21 when it inexplicably plunged from an altitude of 29,000 feet into a mountainside, killing all 132 people on board.

So-called black box flight data recorders recovered from the site were sent to the United States for analysis.

That data shows that someone -- possibly a pilot or someone who had forced their way into the cockpit -- input orders to send the Boeing 737-800 into a nosedive, according to Wall Street Journal, which cited people familiar with the probe.

"The plane did what it was told to do by someone in the cockpit," the Journal quoted "a person who is familiar with American officials' preliminary assessment" as saying.

US officials believe their conclusion is backed up by the fact that Chinese investigators have so far not indicated any problems with the aircraft or flight controls that could have caused the crash and would need to be addressed in future flights, the newspaper said.

Both the US National Transportation Safety Board and Boeing declined to comment on the investigation to AFP Tuesday.

According to a report from Boeing, investigators found no evidence of "anything abnormal," China's Civil Aviation Administration (CAAC) said in April.

In a statement, the CAAC said staff had met safety requirements before takeoff, the plane was not carrying dangerous goods and did not appear to have run into inclement weather, though the agency said a full investigation could take years.

In the immediate aftermath of the crash, China's ruling Communist Party moved quickly to control information, revving up its censorship machine as media outlets and local residents raced to the crash site.

It has maintained its tight grip over the narrative, with the preliminary probe leaving key questions unanswered.

After the fatal descent near the southern city of Wuzhou, authorities swiftly cordoned off a huge area and China's internet regulator announced it had scrubbed vast amounts of "illegal information" on the crash from China's tightly controlled web.

A social media hashtag bearing the plane's flight number appeared to be censored.

The crash was China's deadliest in around 30 years and dented the country's otherwise enviable flight safety record.

[Azimuth]

Let the censoring begin!

[booboo2718]

I posted back on 4-3 it looked like pilot suicide. It may not have been the pilot but it has been determined to have been purposely crashed by someone.