航空 发表于 2011-6-20 20:00:18

737NG飞机APU 供电启动系统排故浅析

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航空 发表于 2011-6-20 20:00:37

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<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white" class=MsoNormal align=center><SPAN style="BACKGROUND: white; FONT-SIZE: 13.5pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">737NG</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; FONT-SIZE: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white">飞机</SPAN><SPAN style="BACKGROUND: white; FONT-SIZE: 13.5pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; FONT-SIZE: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white">供电启动系统排故浅析</SPAN><SPAN style="BACKGROUND: white; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P></TD></TR>
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<P style="MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white" class=MsoNormal><SPAN style="BACKGROUND: white; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p><FONT face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P></TD></TR>
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<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white" class=MsoNormal align=center><SPAN style="BACKGROUND: white; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman">&nbsp;</FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; FONT-SIZE: 9pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white">作者:</SPAN><SPAN style="BACKGROUND: white; COLOR: black; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><A href="http://www.china-cam.cn/User/ShowUser.asp?UserName=%5b文%5d王庭刚%20南航股份新疆分公司乌鲁木齐维修基地"><SPAN style="COLOR: black; TEXT-DECORATION: none; text-underline: none"><FONT face="Times New Roman">[</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: black; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; text-underline: none" lang=EN-US><SPAN lang=EN-US>文</SPAN></SPAN><SPAN style="COLOR: black; TEXT-DECORATION: none; text-underline: none"><FONT face="Times New Roman">]</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: black; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; text-underline: none" lang=EN-US><SPAN lang=EN-US>王庭刚</SPAN></SPAN><SPAN style="COLOR: black; TEXT-DECORATION: none; text-underline: none" lang=EN-US><SPAN lang=EN-US><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: black; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; text-underline: none" lang=EN-US><SPAN lang=EN-US>南航股份新疆分公司乌鲁木齐维修基地</SPAN></SPAN></A></SPAN><SPAN style="BACKGROUND: white; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></P></TD></TR>
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<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><BR></SPAN><FONT size=3><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">一、背景</SPAN></B><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">我公司从</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 2001 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">年开始引入</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 737-700</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">飞机,该飞机设计较为成熟,部件的可靠性较高,因此故障发生率一直保持在一个较低的水平,但近期我公司</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 5108 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">飞机</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">启动发电机却接连发生故障,通过参与该故障的排除工作,使本人对</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 737-700 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">飞机</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">启动和供电系统的工作有了更深层次理解,现将本人在排故过程中的一些心得写出,供大家参考。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">二、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN></B><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">供电控制和启动系统的组成和原理简介</SPAN></B><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">1 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">供电控制系统</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">供电控制系统主要由</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">发电机控制组件、启动转换组件、启动发电机和</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电子控制组件组成。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">发电机控制组件提供</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">发电机</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 1 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">号电门和</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 2 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">号电门的位置给汇流条电源控制组件,输出接通电压调节器信号给启动转换组件,给出</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电源可用信号给汇流条电源控制组件,并提供过压、欠压、过频、欠频、过流、欠速和差动等保护控制。启动转换组件把直流电转换成交流电供给启动发电机,并在发电机发电阶段提供励磁电压。启动发电机在启动过程中作为电动机带转</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">转子,在发电过程中作为发电机提供电源给飞机用电系统。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电子控制组件向通用电子组件提供</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">信息。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">2 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">启动系统</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">启动系统主要由</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电子控制组件、启动发电机、启动电源组件和启动转换组件组成。当</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">主电门接通后,</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电子控制组件发出启动信号给启动转换组件,启动转换组件将从启动电源组件处得到</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 270</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">伏的直流电,转换成三相交流电提供给启动发电机,由启动发电机通过齿轮箱带转</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">转子转动,当</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">转速达到</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 70% </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">额定转速时,</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电子控制组件取消对启动转换组件的启动信号输入,启动转换组件不再从启动电源组件处得到直流电,启动发电机退出启动状态,此时由</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">涡轮单独带转</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">转子加速至额定转速。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">三、故障分析与排除</SPAN></B><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">月</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 11 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">日,</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 5108 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">飞机在北京短停时,</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">出现掉电,机组停车后再启动</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">不成功,</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">电压、电流指示为</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 0 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">。航后在通用电子组件上做</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">自检有</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">“ NO APU ROTATION SHUTDOWN ”</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">“ SCU SHOWS FAILED GEN DIODE ”</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">“ SCU SHOWS GEN UNDERVOLTAGE”</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">维护信息,根据故障现象我们首先拆检了磁堵,磁堵上干净无金属屑,这样排除了齿轮箱机构机械损伤产生卡阻使启动发电机无法转动的可能性;接着我们从原理分析可知,如果启动转换组件故障同样会导致</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">掉电和启动不成功现象,在更换启动转换组件后故障仍未排除;此时故障部件的最大可能性定格在启动发电机上,通常启动发电机的损坏有两种情况,一是线路故障,如线圈出现断路,此种故障可通过测量启动发电机相关线路的阻值加以判断;二是内部机械损伤,建议拆检启动发电机回油滤,因为对启动发电机轴承的润滑在其回油路上有独立的油泵和油滤,如果启动发电机轴承出现磨损或损坏可直接通过拆检启动发电机的回油滤得知,所以为判定故障原因我们对比测量了即将拆下和装上的启动发电机相应线圈电阻,阻值基本相同,紧接着我们拆检了启动发电机回油滤,发现有大量杂质和少量金属屑,据此判定启动发电机内部损伤造成此次</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">故障。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">四、排故回顾</SPAN></B><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">这起</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">故障得以在较短时间内彻底排除,一是源于机组人员对故障现象的详细描述,其次是排故人员对故障系统构造和原理较为熟悉,准备工作充分。在排除本起故障过程中,我们认为有一些值得注意的地方:</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">1 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">故障类型很多,有时由于机组对故障现象观察不够仔细,有价值的故障信息反馈少,此时排故人员为进一步了解故障情况,个别会再次启动</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">(这种情况在</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 737-300 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">飞机</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">的排故中较为常见),而对于部分</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">故障,在未做相关检查前,盲目启动</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">,可能会造成</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">相关部件的再次损伤,如本次</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">故障,在通用显示组件上做</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">自检有</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">“ NO APU ROTATION SHUTDOWN”</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">维护信息,如果故障原因是启动发电机内部机械故障,此时启动</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">,有可能出现</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> APU</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">阻转力矩很大,启动电流也很大,而启动发电机转速很小甚至不转动的情况,此类情况严重时会造成启动发电机内部过热,烧毁线圈,形成部件的二次损伤。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">2 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、此外在对启动转换组件进行更换时,手册中有明确要求,件号为</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman"> 1151858-245</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">以下型号的启动转换组件在未判明是启动转换组件或启动发电机故障时,不能先更换启动转换组件,否则如果是启动发电机损坏,可能会造成启动转换组件的再次损坏,而对于件号为</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">1151858-250 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">以上型号的启动转换组件由于经过相应改装,则无需担心此类情况发生。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">五、小结</SPAN></B><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">作为一名机务人员要想快速、准确、彻底地排除故障,笔者认为应该努力做好以下几点:</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、排故时应注重与机组的沟通,及时、清楚地了解故障发生的过程,出现故障时的视觉、听觉警告信号。作为排故人员详尽掌握故障发生时的第一手资料,对故障的判断往往起着至关重要的作用,尤其是一些间歇性的故障。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">2 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、加强对手册相关知识的理解和运用。熟练掌握各系统的工作原理,部件间的相互关系可以帮助我们迅速准确判明发生故障的部件及部位。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">3 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、加强排故信息交流,充分利用波音网站、机务论坛等信息平台以获知更多有价值的信息。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: 170%; MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal><FONT size=3><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><FONT face="Times New Roman">4 </FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; BACKGROUND: white; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-shading: windowtext; mso-pattern: solid white">、注重排故经验的总结与积累,每次排故结束后应将个人的一些排故心得及时记录下来。</SPAN><SPAN style="BACKGROUND: white; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P style="MARGIN: 0cm 0cm 0pt; BACKGROUND: white; TEXT-AUTOSPACE: ; mso-shading: windowtext; mso-pattern: solid white" class=MsoNormal><SPAN style="BACKGROUND: white; FONT-SIZE: 9pt; mso-bidi-font-size: 10.0pt; mso-shading: windowtext; mso-pattern: solid white" lang=EN-US><o:p><FONT face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P></TD></TR></TBODY></TABLE></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><o:p><FONT face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>

hyfu2011 发表于 2011-6-22 02:01:41

回复 1# 航空 的帖子

楼主  辛苦  学习学习

show616 发表于 2011-6-22 14:57:30

ADFFADFADFA

yuxiq2409 发表于 2011-7-13 18:10:39

楼主辛苦了,好东西,一定要看的

hyfu2011 发表于 2011-7-18 01:40:33

回复 1# 航空 的帖子

辛苦辛苦,学习学习

bocome 发表于 2011-7-30 18:39:36

737NG飞机APU 供电启动系统排故浅析

p854379963 发表于 2016-12-27 23:08:59

根本不太认同

diguo 发表于 2017-1-3 10:48:28

好东西。都要好好学习一下。看看怎么排故。
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