首頁最新消息簡介攝影畫廊讀經日引網上資源網上下載網上討論區聯絡我們
聖經金句

耶和華的僕人夜間站在耶和華殿中的,你們當稱頌耶和華!
(詩篇134:1)



 
聖經查詢
聖經查詢(新版)
關於我們
目錄導覽
音樂詩歌點播
文化天地
時事論壇
世界經濟
育博通
珠璣集
幽默
News
教育中心
時代論壇报
山行文化出版社
文藝園地
健康資訊
中美友好協會
美國新聞 ( 国际日报 报道)
南粵之窗
Amazing Qingdao - 今日青島
Panda Mania 熊来疯
教會機構專欄精選
網上奉獻與支持
故障申告
聯絡我們
網站維護

設為首頁
加入「我的最愛」
瀏覽流量統計
人數: 21,370 
頁數: 29,955,181 
下載: 10,586 
Since 11/2005


訂閱電子報

訂閱電子週報
自訂閱名單移除
電郵Email:



  
   

Bookmark and Share   
 
Four reasons why plane's windshield can break
5/15/2018


Four reasons why plane's windshield can break
Author: China Daily
Flight 3U8633, operated by Sichuan Airlines, prepares to conduct emergency landing after a mechanical failure in Chengdu Shuangliu International Airport in Chengdu, capital of Southwest China's Sichuan province, May 14, 2018. [Photo/Xinhua]
An investigation to find out how a windshield of Sichuan Airlines' flight 3U8633 from Chongqing to Lhasa got blown-out was launched, thepaper.cn reported.

The windshield on the co-pilot side in the cockpit shattered at a cruising altitude of 32,000 feet. Photos of the plane show that part of the windshield was blown out, a phenomenon that an unnamed maintenance personnel said was rare, as the windshield is too strong to even crack.

With the flight making an emergency landing at Chengdu Shuangliu International Airport in Chengdu, capital of Southwest China's Sichuan province, the Southwest Regional Administration of Civil Aviation Administration of China immediately launched an investigation in cooperation with Sichuan Airlines.

Chen Jianguo, president of flight expert committee affiliated to Aircraft Owners and Pilots Association of China, gave four possible reasons why the windshield broke.

Chen said any operating airplane must carry out maintenance. Different checks, including windshield dismantlement and installation, will be conducted according to different maintenance levels. If a wrong screw is used or the windshield cracks due to improper maintenance, it may cause potential risks.

However, it has not been confirmed whether Flight 3U8633 underwent windshield dismantlement and installation.

Another reason may be the quality of the windshield. A windshield normally can endure 30,000 take-offs and landings. Substandard windshield will age faster. Sometimes windshield may be replaced.

Flight 3U8633 rolled off the production line in 2011 and flew more than 10,000 times in the past seven years. Sichuan Airlines claimed that the windshield of the plane had not been replaced before.

Even the windshield is proper, it still could break. During the flight, as the outside temperature is very low, windshields usually need to be heated. But if it is heated unevenly or encounters short circuit, the windshield may experience intensity change and break due to difference of the pressure inside and outside the cabin.

Plus there's the possibility of an intruder. The windshield may be hit by something, such as a bird or hailstones. The windshield usually has three layers. Outer layer is shockproof and inner layer can bear pressure and has the highest intensity. When hit, usually the outer layer may shatter and inner layer remains fine, which will not disturb the flight.

But Chen said at an altitude of 32,000 feet, there is no hailstone and hardly any bird flies that high. The possibility of being hit is rare.

As the windshield broke and blew out, the cockpit lost pressure, with the co-pilot nearly sucked out from the plane with only his seat belt saving him. The accident made the equipment malfunction and the flight went into a nosedive that lasted five to six seconds.

Facing low temperature of minus 40 degree Celsius, tearing wind of 800-900 km/h, and deafening sound, the pilot grabbed a oxygen mask and manually controlled the plane, displaying extraordinary professionalism and will power.

The pilot heroically saved more than 100 passengers and crew members on the flight.


相關訊息

Websites for Foreigners to Hunt Jobs in Chengdu 
 

Excited to Continue My Travels in Chengdu 
 

Host of Asia-Europe summit in close cooperation with China 
 

A foodie's landmark in Chengdu 
 

AI medical image team settles down in Wenjiang 
 

Man-made moon to shed light on Chengdu in 2020 
 

China plans launch of 'artificial moon' in 2020 
 

China to launch man-made moon in space 
 

Wenjiang promotes Entrepreneurship and Innovation week 
 

Chengdu plays leading role in innovation, entrepreneurship 
 

Pioneering products show city's role in high-tech economy 
 

Latest technology wows attendees at key conference for businesses 
 

Seminar on Australia-China Trade and Investment and CIIE Held in Chengdu 
 

Poetry event in Chengdu draw poets from 30 countries 
 

China's rail transit sector gets major boost at key summit in Xindu 
 

本目錄中最多閱覽的文章

“Hello 2018” Greetings from Chengdu! 


Looking forward to snowball fights? 


Video - Are you a GENUINE panda-lover? 


Baby Pandas’ Street Fight Skills 


"Kung Fu Panda: The Emperor's Quest" to open in Universal Studios Hollywood 
Universal Studios Hollywood's all-new attraction, DreamWorks Theatre featuring "Kung Fu Panda: The Emperor's Quest", is scheduled to officially open op June 15, the theme park announced Thursday.

   Email: sino.american2020@gmail.com    Powered by Web4Jesus (W4J) Ministry