[新聞] A321neo也有過度抬頭的問題

[ttnakafzcm (燦's)]

The Airbus A321neo Has An Excessive Pitch Problem

Yesterday morning, the European Union Aviation Safety Agency (EASA) alerted
A321neo operators that there is potential for an “excessive pitch” anomaly.
Airbus is introducing a temporary revision to its A321neo flight manuals that
would prevent the aircraft from reaching excessive pitch altitudes. “
Excessive pitch” is the issue that plagued the 737 MAX and is what led
Boeing to install its MCAS on the type.


The A321neo has a range of 7,400km. Photo: BriYYZ Flickr
This revision is the result of analysis of the elevator and aileron computer
on the A321neo. Airbus has yet to elaborate on the situation except for
stating that “excessive” pitch could occur under certain conditions and “
during specific maneuvers.”

FlightGlobal reports that the EASA has ordered A321neo operators to amend
their flight manuals accordingly, within 30 days of when the alert was
issued. In fact, the order will cover both the CFM International Leap-1A as
well as Pratt & Whitney PW1100G versions of the aircraft.

Should you worry?
According to an article by AirInsight, the Airbus with its existing
fly-by-wire system being more extensive than those on the 737MAX, can remain
in safe operation following the procedure. View from the Wing and other
sources are saying that it is still unknown whether a software modification
will be needed for the A321neo.

Featured Video:
With the 737 MAX and its fundamental design issues in the aviation industry’
s spotlight, it’s a safe bet that Airbus will carry out its due diligence to
make sure its aircraft are safe to fly.

a321neo
A321neo test-bed on a low gears-up departure from Toulouse. Photo: Wikipedia
A321neo operators
According to Wikipedia, here is a list of some of the notable A321neo
operators and the number of aircraft they currently have (at the time of
writing this article):

American Airlines – 5 currently in service, 65 on order
easyJet – 6 currently in service, 24 on order
IndiGo – 5 currently in service, 145 on order
JetBlue – 1 currently in service, 58 on order
Lufthansa – 2 currently in service, 38 on order
Turkish Airlines – 7 currently in service, 85 on order
and WIZZ Air – 3 currently in service, 181 on order
Lastly, Virgin America was the first airline to take delivery of the aircraft
type in May of 2017. However, the airline was acquired by Alaska Airlines in
2016 and thus flew its final flight in the Spring of 2018. The A321neos are
now flying with Alaska Airlines.

American-Airlines-A321neo
American Airlines has a total order of 70 Airbus A321neo jets. Photo:
American Airlines.
Conclusion
As mentioned above, the aircraft type has been flying since 2017 with its
first delivery going to Virgin America (now Alaska Airlines). Therefore, it’
s been flying for two years now without a serious incident. We should note,
however, that the 737 MAX also entered service in May of 2017. Perhaps, then,
it depends on whether you see the glass half-empty or half-full as entry into
service was at a similar time.

Of course, Boeing and Airbus aircraft fly quite differently. Therefore,
despite the fact that “excessive pitch” is a common problem, the solution
may be very different.

Does this news worry you at all? Or does Airbus have this under control? Let
us know by leaving a comment!

This post was last modified on July 18, 2019 11:07 am

PUBLISHED BY
Chris Loh
4 HOURS AGO

https://www.flightglobal.com/news/articles/a321neo-operators-alerted-over-exce
ssive-pitch-ano-459718/

https://tinyurl.com/y69rg7pv

歐洲航空安全局（EASA）前段時間發出警告，指空巴A321 Neo機型有可能出現“過度抬頭
”（Excessive Pitch)的問題。而同樣的問題正是當初波音737 Max系列機型設計時引入
機動特性增強系統（MCAS）的原因之一。

空巴經過升降舵和副翼電腦數據分析評估後，初步認為這種情況“在特定操作下”
(during specific maneuvers)會出現。歐洲航空安全局下令空巴在警告發出30天內修改
手冊以處理問題。

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※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 118.160.52.219 (臺灣)
※ 文章網址: https://www.ptt.cc/bbs/Aviation/M.1563497665.A.B4D.html
※ 編輯: ttnakafzcm (118.160.52.219 臺灣), 07/19/2019 08:59:27
推 tivallion: 這跟都用加大發動機有關係嗎
推 scaredreal: 那是不是代表這問題其實不大 結果波音亂搞把小問題
→ scaredreal: 搞成大問題害死300多人?
→ scaredreal: 難怪波音現在要賠5000萬鎂給罹難家屬
→ ttnakafzcm: 問題不大?  OEB48表示:
推 scaredreal:                      我沒害死超過300人
推 rocky9137: 星宇航空:
推 Alderamin: 空巴你頭抬太高惹(?
推 lws0527: 遠東：MD再戰10年！
推 hazel0093: 拉桿狂魔博南
→ hazel0093: 正駕駛朱衛民 副駕駛博南 一個推頭一個抬頭....
推 ATR72: 一定是A321XLR一推出就大賣太驕傲了，下巴翹太高
推 awayaway: 講到空巴某些帳號就出現了XDDD
→ suntex01: 空巴沒害死人？去跟掉在名古屋的那架說
推 taxlaw1991: 遠東：737MAX和A320neo都不安全 可以讓我繼續用MD嗎？
推 Y1309: 廢太子：……
推 aimlin: md配重比較好
EASA AD

https://ad.easa.europa.eu/blob/EASA_AD_2019_0171.pdf/AD_2019-0171_1

能夠讓EASA要求30天內修正的   問題不會小到哪裡去............

※ 編輯: ttnakafzcm (118.160.52.219 臺灣), 07/19/2019 12:52:05
推 vhygdih: 過度抬頭 那就後面少塞一點啊XD 之前a340-600 過度壓頭
→ vhygdih: 解決方式不是少裝商務艙
推 nrl952006: 微博那邊看到一堆刷梗的... 好啦沒一堆...但是有幾個
推 lws0527: 可以理解成A320neo沒這問題嗎
推 evaair787: 歐買尬
推 g3sg1: 胖胖：發出繼續使用MD的聲音
※ 編輯: ttnakafzcm (118.160.52.219 臺灣), 07/19/2019 17:31:05
→ cal629195: 737與321的起落架離地面高不同，裝置新引擎時，737必須
→ cal629195: 將引擎位置上升嵌進翼面並重心前移，321沒有如此嚴重的
→ cal629195: 重心平衡問題.
推 A320neo: vhygdih說的沒錯，空巴把CG限制在37%
→ A320neo: 這次是A321neo在帶平飄的時候出現這個問題，320neo沒事
→ A320neo: AIRBUS預計明年中修正ELEC就可以解決這個問題
推 flyiii: lh1829無論如何沒摔，而且現在從駕駛員問題變成扯兩邊一
→ flyiii: 樣爛？
→ scaredreal: 兩家一樣爛 票買737max 我懂