案例分享｜反推无法收回B737系列机务在线

机务君 发表于 2021-12-30 20:42:37

案例分享｜反推无法收回

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         <span style="max-width: 100%;font-size: 14px;overflow-wrap: break-word ;box-sizing: border-box ;">上一篇文章——<a target="_blank" href="http://mp.weixin.qq.com/s?__biz=MzI4Njg5MzY4NQ==&mid=2247488222&idx=1&sn=e182f5729e2002ee759714d2b3501c74&chksm=ebd4a1c4dca328d2939b773ac9b087fe77c7619e8770374cd4ac4c29009a5f10398b02c1ba3d&scene=21#wechat_redirect" textvalue="失效反推可以少插一个销子吗？" linktype="text" imgurl="" imgdata="null" data-itemshowtype="0" tab="innerlink" data-linktype="2">失效反推可以少插一个销子吗？</a>有提到失效反推的问题，其实失效反推的程序并不难，但是如果反推无法收回，想要执行M项可就有点费劲了，前不久在外站就遇到了一起反推无法收回的故障。</span>
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                     事件背景
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         <span style="max-width: 100%;font-size: 14px;overflow-wrap: break-word ;box-sizing: border-box ;">12月4日，一架737NG飞机三亚落地后机组反馈右发右侧反推无法收回，反推灯常亮，复位跳开关后依旧无法收回，检查标靶正常无损伤，目视反推结构正常，但无法人工作动收回反推，更换锁作动器后反推正常收放，但<span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">是标靶保持临近位不弹回，导致反推灯常亮，</span>EAU自检有故障代码S830 HYD ISO VALVE SENSOR，S836 R SLEEVE LOCK SENSOR，<span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">清</span><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">除代码后故障依旧，</span>因时间不足MEL保留反推放行。</span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g85MqGHEaibbewEUqdnBylGWXaZjjWa0I6I3sXAp7ujVDQ1yDefYtapMlibJEfhyRf3icm8zKWOicn8DJg/640?wx_fmt=png" style="width: 100%;height: auto;">
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         <span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲右发左侧反推收回状态（标靶与传感器远离）</span>
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         <span style="max-width: 100%;font-size: 14px;overflow-wrap: break-word ;box-sizing: border-box ;"></span><span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲右发右侧反推收回状态（标靶与传感器靠近</span><span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">）</span>
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         <span style="max-width: 100%;font-size: 14px;overflow-wrap: break-word ;box-sizing: border-box ;">12月5日，天津航后检查发现右发右侧反推锁定传感器标靶保持临近位不动，</span><span style="font-size: 14px;">检查右发右侧反推LVDT位置正常，离位检查同步轴损伤符合手册标准。</span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g85MqGHEaibbewEUqdnBylGWXLYKT4KJkHibGgGibicjpchZIrlEO979hGK9RogpYpKgIks5f92PoxA74Q/640?wx_fmt=png">
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         <span style="font-size: 14px;"></span><span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲同步轴损伤标准参考AMM TASK 78-31-04-200-801-F00<br style="font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;line-height: normal;orphans: 2;text-align: -webkit-auto;text-indent: 0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0px;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;"></span>
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         <span style="max-width: 100%;font-size: 14px;overflow-wrap: break-word ;box-sizing: border-box ;"><span style="font-size: 14px;">完成同步轴校装后打压作动反推，测试正常。</span></span>
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   http://mpvideo.qpic.cn/0bc33eaegaaaxmacqeoihjqvbwodipmqaqya.f10003.mp4?dis_k=cac9e4518a99732a882f58cf74e9066a&dis_t=1640947092&vid=wxv_2196680676656152577&format_id=10003&support_redirect=0&mmversion=false
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                     反推收放方式
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         <span style="font-size: 14px;">反推收放一般有两种方式：正常方式、人工方式。</span>
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                        <strong style="box-sizing: border-box;" mpa-from-tpl="t">正常方式</strong>
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         <span style="color: #ffa900;font-size: 16px;"><strong>放出反推</strong></span>
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         <span style="font-size: 14px;">正常情况下，当拉起反推手柄，反推作动筒同步锁通电解锁，使同步轴得以旋转，反推控制活门内的预位线圈通电，使内部的HIV向上移动，从而使液压能够进入反推作动筒的收回油路。</span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGraXyN19DTCN9lC2M0B43BRltMgeyCBXnnibHaHIoosFqWz2cBUVicoKyhA/640?wx_fmt=png" style="box-shadow: #d2d2d2 0em 0em 0.5em 0px;font-size: 17px;width: 100%;height: auto;">
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         <span style="font-size: 14px;"><span style="font-size: 14px;">反推控制活门内的放出线圈通电，使内部的DCV向上移动，从而使液压能够进入反推作动筒的放出油路。</span></span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGra4J7ibdecW3vz8jgvw8npW5bSQWBO3iaPwqfiaTeR9a3WlicKIwdQjwNxicA/640?wx_fmt=png" style="box-shadow: #d2d2d2 0em 0em 0.5em 0px;font-size: 17px;width: 100%;height: auto;">
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         <span style="font-size: 14px;">液压首先将锁作动筒解锁</span><span style="font-size: 14px;">，由于作动筒油路两端横截面积不同，作动筒在压力差作用下伸出，从而放出反推。</span><span style="font-size: 14px;"></span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGra1qU688mtUh8ANDIibNwE6HFFttS1a7qMbK83ibBmgsVQ28CzzT0qceicg/640?wx_fmt=png" style="text-align: center;width: 100%;box-shadow: #d2d2d2 0em 0em 0.5em 0px;">
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         <span style="color: #ffa900;"><strong><span style="color: #ffa900;font-size: 16px;">收回反推</span></strong></span>
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         <span style="font-size: 14px;">当收回反推手柄时，延时器使同步锁和反推控制活门内的预位线圈保持通电，放出线圈断电使DCV下部断压，收回线圈通电使DCV向下移动，切断了反推作动筒放出油路的液压，反推作动筒在收回油路的液压作用下使反推收回。</span><span style="font-size: 14px;"></span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGrazWJyoS6o6AHricPgUwr1FwMEphM8PJTsxhibVkfqyAC6ibGT4MiasFXWPQ/640?wx_fmt=png" style="box-shadow: #d2d2d2 0em 0em 0.5em 0px;font-size: 17px;width: 100%;height: auto;">
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         <span style="font-size: 14px;"></span><br>
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         <span style="font-size: 14px;"><span style="font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 14px;letter-spacing: 0.544px;background-color: #ffffff;">经过10.5秒的延迟（正常情况下此时反推已收回到位），EAU接收到一个复位信号，使反推控制活门内的预位线圈和收回线圈断电，从而切断了反推系统的液压供应。</span></span>
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         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGraa6tooZUdz5RQTHneRGElUoFYEEevuAqRT5dpk3DcqIoepqaSJj9mfQ/640?wx_fmt=png" style="box-shadow: #d2d2d2 0em 0em 0.5em 0px;font-size: 17px;width: 100%;height: auto;">
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         <span style="font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 14px;letter-spacing: 0.544px;background-color: #ffffff;">18秒后，同步锁延时继电器作动，同步锁继电器使反推同步锁断电，同步锁上锁，反推作动筒无法继续作动。</span>
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               <section style="display: inline-block;border-bottom: 2px solid #47c1a8;padding-right: 2px;padding-bottom: 3px;padding-left: 2px;box-sizing: border-box;" mpa-from-tpl="t">
                     <section style="display: inline-block;padding: 0.3em 0.4em;min-width: 1.8em;min-height: 1.6em;line-height: 1;text-align: center;border-radius: 80% 100% 90% 20%;background-color: #47c1a8;color: #fffff0;box-sizing: border-box;word-wrap: break-word ;" mpa-from-tpl="t">
                        <section style="box-sizing: border-box;" mpa-from-tpl="t">
                           2
                        </section>
                     </section><span style="display: inline-block;margin-left: 0.4em;max-width: 100%;color: #47c1a8;line-height: 1.4;word-wrap: break-word ;box-sizing: border-box;"><p style="box-sizing: border-box;">
                        <strong style="box-sizing: border-box;" mpa-from-tpl="t">人工方式</strong>
                     </p></span>
               </section>
            </section>
         </section>
   </section>
   <p>
         <br mpa-from-tpl="t">
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;">每侧反推有两根同步轴，两根同步轴通过中间作动筒连接处相连，三个作动筒在同步轴的传动下同步伸缩。</span>
   </p>
   <p style="max-width: 100%;overflow-wrap: break-word ;">
         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGra4ydgyfonUjLTmOLqO28xDBVMQmVticJhufnmvic35A9AICnITxzia1ibEA/640?wx_fmt=png" style="box-shadow: #d2d2d2 0em 0em 0.5em 0px;font-size: 17px;width: 100%;height: auto;">
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"></span><br>
   </p>
   <p style="white-space: normal;">
         <strong><span style="font-size: 14px;">人工收放反推的具体步骤请参考AMM TASK 78-31-00-980-803-F00、TASK 78-31-00-980-804-F00</span></strong><span style="font-size: 14px;"><br style="font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;line-height: normal;orphans: 2;text-align: -webkit-auto;text-indent: 0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0px;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;"></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><br></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;">将反推控制活门上的人工关断手柄置于关断位并插上锁定销，以阻断供往反推系统的液压。</span>
   </p>
   <p style="text-align: center;">
         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGraayvuic6XWxkGELZ35wcJCXbE2jib9M15sl27GCwSBSrewPLZ2B0CUvIw/640?wx_fmt=png" style="width: 100%;height: auto;">
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"></span><br>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;">人工扳动锁作动筒上的人工开锁手柄以解锁锁作动筒。</span>
   </p>
   <p style="text-align: center;">
         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGra0mC7OcnXbCyMvE8vevXan1p5RNDxJCke3qqDZCibpZ9osw4kFDYHKng/640?wx_fmt=png" style="width: 100%;height: auto;">
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;">用3/8摇把或等效工具顶入同步锁底部的方形孔，使内部的锁销被压缩以解锁同步锁。如果锁销无法被压缩，可以使用5/8的开口卡住同步锁的六角螺母并轻微晃动。</span>
   </p>
   <p style="text-align: center;">
         <img class="rich_pages wxw-img" data-galleryid="" src="http://newcdn.96weixin.com/mmbiz.qlogo.cn/mmbiz_png/7ayb1fm1g87dMJnOaodwmfRM33szXGraZNaudlagO85licVnJwCEwJaicb0S5C6KLZv7H5giaiaqTZ1iaNCB2icLtibsg/640?wx_fmt=png" style="width: 100%;height: auto;">
   </p>
   <p style="white-space: normal;">
         <br>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;">人工旋转同步轴过程中，不要施加超过50磅寸的力，否则会损坏同步锁。</span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><br></span>
   </p>
   <section class="_editor" data-support="96编辑器" data-style-id="24938" style="white-space: normal;">
         <section style="margin-top: 10px;margin-bottom: 10px;text-align: center;">
            <section style="padding: 5px;display: inline-block;vertical-align: bottom;border-bottom: 5px solid #8cd1f7;font-size: 16px;font-weight: bold;line-height: 1.5em;letter-spacing: 2px;">
               <p>
                     维护提示
               </p>
            </section>
            <section data-width="100%" style="margin-top: -3px;width: 578px;border-bottom: 1px solid #8cd1f7;border-top-color: #e1d9d6;border-left-color: #e1d9d6;border-right-color: #e1d9d6;height: 1px;">
               <br>
            </section>
         </section>
   </section>
   <p style="white-space: normal;">
         <br>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">1、安装作动筒时需人工拉长，且注意不能转动作动筒杆端，否则会导致作动筒内部损坏。</span></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;"><br></span></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">2、<span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">任何一个作动筒的作动行程量问题都会通过同步轴反映出来</span>，所以在手册中有提到，更换任意作动筒都需要对同步轴进行校装（即重新安装）。</span></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;"><br></span></span>
   </p>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #171a1d;font-family: "Microsoft YaHei", "Segoe UI", system-ui, Roboto, "Droid Sans", "Helvetica Neue", sans-serif, Tahoma, "Segoe UI Symbol", "Myanmar Text", 微软雅黑;font-size: 14px;text-align: left;white-space: span-wrap;background-color: #ffffff;">3、针对锁作动筒，更换完成后需要完成完整性测试以验证锁作动器的锁定功能。</span></span>
   </p>
   <section>
   http://mpvideo.qpic.cn/0bc3smaaeaaa6uab4u6mrvqvbe6dakjqaaqa.f10002.mp4?dis_k=f4ec488bcafc3efcb041df403ecf44ad&dis_t=1640947092&vid=wxv_2200739490577645568&format_id=10002&support_redirect=0&mmversion=false
   </section>
   <p style="white-space: normal;">
         <span style="font-size: 14px;"><span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲737NG反推上锁作动器完整性测试视频</span></span>
   </p>
   <p>
         <span style="font-size: 14px;"><br></span>
   </p>
   <p>
         <span style="font-size: 14px;">4、</span><span style="font-size: 14px;">如果发生反推故障，不建议直接通过收放5次反推或通过EAU组件清除代码，条件允许的前提下，应记录一下故障代码，否则可能为后续的排故工作增加不必要的麻烦。</span>
   </p>
   <section>
http://mpvideo.qpic.cn/0bc3buaaiaaa3yacpeompfqvadodaqgqabaa.f10002.mp4?dis_k=5bf790209c7dee15e8807acc9d97cc0c&dis_t=1640947092&vid=wxv_2200771381364129794&format_id=10002&support_redirect=0&mmversion=false
   </section>
   <p style="max-width: 100%;min-height: 1em;overflow-wrap: break-word ;box-sizing: border-box ;">
         <span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲737NG反推系统排故指南</span>
   </p>
</section>
<p style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
   <br>
</p>
<p style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
   <span style="font-size: 14px;">5、在遇到反推故障时，如果怀疑是作动筒人工开锁手柄标靶与传感器位置间隙超标导致，可以使用专用工具进行测量。</span>
</p>
<section>
http://mpvideo.qpic.cn/0bc3nuaaiaaammadr56mpvqva3odarwqabaa.f10002.mp4?dis_k=8fba2659251c57c73015cd166d2ce54e&dis_t=1640947092&vid=wxv_2200875457615626242&format_id=10002&support_redirect=0&mmversion=false
</section>
<p style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
   <span style="font-size: 14px;"><span style="color: #888888;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 12px;letter-spacing: 0.544px;text-align: left;background-color: #ffffff;">▲737NG反推锁传感器间隙测量工具使用教程</span></span><br>
</p>
<p style="max-width: 100%;min-height: 1em;overflow-wrap: break-word ;box-sizing: border-box ;">
   <br>
</p>
<p style="max-width: 100%;min-height: 1em;overflow-wrap: break-word ;box-sizing: border-box ;">
   <br>
</p>
<section data-tools="新媒体排版" data-style-type="undefined" style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
   <p style="margin: 0em 1em;max-width: 100%;min-height: 1em;color: #3e3e3e;font-size: 16px;white-space: normal;text-align: right;overflow-wrap: break-word ;box-sizing: border-box ;">
         <strong style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">／End.</strong>
   </p>
</section>
<section class="_editor" data-support="96编辑器" data-style-id="24435" style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
   <section class="_editor" data-support="96编辑器" data-style-id="24435" style="max-width: 100%;overflow-wrap: break-word ;box-sizing: border-box ;">
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            <section data-width="50%" style="max-width: 100%;display: inline-block;background-color: #fefefe;width: 289px;overflow-wrap: break-word ;box-sizing: border-box ;">
               <p style="margin-right: auto;margin-left: auto;max-width: 100%;min-height: 1em;overflow-wrap: break-word ;box-sizing: border-box ;">
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<p>
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</section>

哪凉快我去哪 发表于 2022-5-19 14:58:53

学习了

baxia 发表于 2022-8-15 00:36:16

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