关于ARJ21起落架系统改装，查根溯源

刚一个HKC2010帖子里说道ARJ21起落架问题，问了一下度娘，似乎最先说这话的是《民航资源网》
http://cdn.carnoc.com/list/245/245772.html

ARJ21起落架系统改装 交付可能将进一步推迟

　2013-03-07 民航资源网 Adia/编译　[投稿排行榜]        2013/03/08(11:15:12)
我来说两句(4) 字体大小：[ 大 中 小 ]   分享到新浪微博


　　据Flightglobal网站报道，中国商用飞机公司（COMAC）已经开始对ARJ21支线飞机的起落架系统进行改装，可能会导致该机型的取证时间进一步推迟。

　　德国利勃海尔宇航公司（Liebherr Aerospace）是起落架的供应商，该公司表示，该机型经过多年试飞进行的“改进”影响到了飞机的起落架系统。一名利勃海尔的女性发言人表示，起落架也需要改装以适应改良后飞机的运行性能。

　　ARJ的飞行测试自2008年开始，测试结果曾显示起落架系统与飞机的其他部分有可能出现衔接问题。她说：“目前对起落架进行的改装包括了该潜在衔接问题的解决方案。”

　　利勃海尔没有公布改装方案的更多细节，目前也不清楚这种衔接问题本质上是机械原因还是电子系统原因。

　　在新机型项目的尾声阶段对起落架系统进行改装，这种情况并不常见。

　　中国商飞共有4架测试中的ARJ21，自2008年至今共累积了超过2800个飞行小时。去年的珠海航展上，中国商飞表示希望在2013年上半年完成ARJ21支线飞机的取证工作，并在2014年向启动用户成都航空交付第一架飞机。

　　ARJ21支线飞机原计划2007年进行交付，但在设计和取证过程中出现的技术问题，使得交付时间一推再推。FAA与CAAC取证同时进行。

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该网声称消息来自flightglobal

http://www.flightglobal.com/news ... ther-delays-383095/

Comac has begun modifying the landing gear of its ARJ21 regional jet, a move that could lead to the aircraft's certification being pushed back once again.

Liebherr-Aerospace, which supplies the landing gear, says that "improvements" made to the aircraft after years of flight tests have affected its landing gear system.

These need to be "adapted to the updated aircraft's operational features", says a Liebherr spokeswoman. The flight tests, which began in 2008, have also identified "potential interface issues" between the landing gear and the rest of the aircraft, she adds.

"The resolution of these potential interface issues has been integrated into the batch of current modifications," she says.

Liebherr would not give more details about the modifications, and it is not clear if the interface issues are largely physical or electronic in nature.

It is not often that modifications are made to an aircraft's landing gear this late into a programme.

Comac has four ARJ21 test aircraft, which have accumulated over 2,800 flight hours since 2008.

At Airshow China in Zhuhai last year, Comac said it hopes to receive certification from the Civil Aviation Administration of China (CAAC) for the ARJ21 in the first half of 2013, and to deliver the aircraft to launch customer Chengdu Airlines by 2014.

The delivery of the ARJ21 - a project that began some 11 years ago, was initially scheduled for 2007. The deadline was pushed back several times as engineers encountered problems in the development as well as certification process.

The US Federal Aviation Administration is conducting a shadow certification process alongside the CAAC's certification.

（PS：E文不好，无责任度娘后，感觉似乎就是民航资源网所翻译）。

提到起落架问题，但没有说机体要重新设计。

刚一个HKC2010帖子里说道ARJ21起落架问题，问了一下度娘，似乎最先说这话的是《民航资源网》
http://cdn.carnoc.com/list/245/245772.html

ARJ21起落架系统改装 交付可能将进一步推迟

　2013-03-07 民航资源网 Adia/编译　[投稿排行榜]        2013/03/08(11:15:12)
我来说两句(4) 字体大小：[ 大 中 小 ]   分享到新浪微博


　　据Flightglobal网站报道，中国商用飞机公司（COMAC）已经开始对ARJ21支线飞机的起落架系统进行改装，可能会导致该机型的取证时间进一步推迟。

　　德国利勃海尔宇航公司（Liebherr Aerospace）是起落架的供应商，该公司表示，该机型经过多年试飞进行的“改进”影响到了飞机的起落架系统。一名利勃海尔的女性发言人表示，起落架也需要改装以适应改良后飞机的运行性能。

　　ARJ的飞行测试自2008年开始，测试结果曾显示起落架系统与飞机的其他部分有可能出现衔接问题。她说：“目前对起落架进行的改装包括了该潜在衔接问题的解决方案。”

　　利勃海尔没有公布改装方案的更多细节，目前也不清楚这种衔接问题本质上是机械原因还是电子系统原因。

　　在新机型项目的尾声阶段对起落架系统进行改装，这种情况并不常见。

　　中国商飞共有4架测试中的ARJ21，自2008年至今共累积了超过2800个飞行小时。去年的珠海航展上，中国商飞表示希望在2013年上半年完成ARJ21支线飞机的取证工作，并在2014年向启动用户成都航空交付第一架飞机。

　　ARJ21支线飞机原计划2007年进行交付，但在设计和取证过程中出现的技术问题，使得交付时间一推再推。FAA与CAAC取证同时进行。

-----------------------------------------------------------------------
该网声称消息来自flightglobal

http://www.flightglobal.com/news ... ther-delays-383095/

Comac has begun modifying the landing gear of its ARJ21 regional jet, a move that could lead to the aircraft's certification being pushed back once again.

Liebherr-Aerospace, which supplies the landing gear, says that "improvements" made to the aircraft after years of flight tests have affected its landing gear system.

These need to be "adapted to the updated aircraft's operational features", says a Liebherr spokeswoman. The flight tests, which began in 2008, have also identified "potential interface issues" between the landing gear and the rest of the aircraft, she adds.

"The resolution of these potential interface issues has been integrated into the batch of current modifications," she says.

Liebherr would not give more details about the modifications, and it is not clear if the interface issues are largely physical or electronic in nature.

It is not often that modifications are made to an aircraft's landing gear this late into a programme.

Comac has four ARJ21 test aircraft, which have accumulated over 2,800 flight hours since 2008.

At Airshow China in Zhuhai last year, Comac said it hopes to receive certification from the Civil Aviation Administration of China (CAAC) for the ARJ21 in the first half of 2013, and to deliver the aircraft to launch customer Chengdu Airlines by 2014.

The delivery of the ARJ21 - a project that began some 11 years ago, was initially scheduled for 2007. The deadline was pushed back several times as engineers encountered problems in the development as well as certification process.

The US Federal Aviation Administration is conducting a shadow certification process alongside the CAAC's certification.

（PS：E文不好，无责任度娘后，感觉似乎就是民航资源网所翻译）。

提到起落架问题，但没有说机体要重新设计。