短停自动增压灯亮

怪蜀黍Aiden · 发表于 2016-6-30 16:28:20

我想了解自动增压灯亮的排故方法，能给我详细的解释和分析吗，谢谢了

Wmtpyc · 发表于 2016-6-30 19:34:00

請問有圖嗎？還是英文的名稱？我也想知道您碰到的情況

greentree5406 · 发表于 2016-6-30 21:50:44

楼主你这说的不清楚啊，有没图片，又没信息

陈六一 · 发表于 2016-7-1 15:52:48

这种典型的有指示的故障不会查FIM？

jlhuang_05 · 发表于 2016-7-1 16:29:12

简单的做法就是，自检控制盒，记下故障代码，根据FIM手册排故。

jamhowson · 发表于 2016-7-1 16:29:37

MEL建议先将选择旋钮放到备用位10秒，再放回自动位如果灯灭，复位成功。

ryn_82 · 发表于 2016-7-1 19:41:12

先放到人工位10秒，再放回自动位，如果还亮，就放到备用位看是否ALTN绿灯亮自动失效灯灭，如果能灭，可按MEL放行。排故CPC上自检有代码。

怪蜀黍Aiden · 发表于 2016-7-1 20:41:58

ryn_82 发表于 2016-7-1 19:41
先放到人工位10秒，再放回自动位，如果还亮，就放到备用位看是否ALTN绿灯亮自动失效灯灭，如果能灭，可按ME ...

学习到了，谢谢

wym376861 · 发表于 2016-7-2 15:12:35

对于自动增压的故障，楼上的说得都很对，但是有特例，就是显示故障的CPC更换后未必能彻底解决问题，其真实原因是另一部CPC导致的，如果更换后还显示CPC故障，建议将另一个也换掉

xinzai · 发表于 2016-7-9 13:29:47

CPC自检就行，备用位放行就行

xinzai · 发表于 2016-7-9 13:30:08

真的加深印象了

陈六一 · 发表于 2016-12-6 00:31:24

ryn_82 发表于 2016-7-1 19:41
先放到人工位10秒，再放回自动位，如果还亮，就放到备用位看是否ALTN绿灯亮自动失效灯灭，如果能灭，可按ME ...

请教一下阮工，在FIM上查到的放人工位再放回的复位，和在CPC上的system test&clear有什么区别，都是抹除故障码？
FIM中提到这个方法的描述是Reset the cabin pressure controller for any reset recoverable faults 。

而clear部分描述则是The SYSTEM TEST AND CLEAR main menu selection is used to prepare the digital
cabin pressurization control system for a system test and to clear the FAULT
HISTORY.
NOTE: When the test is complete, all faults from all flight legs will be cleared from
FAULT HISTORY.

陈六一 · 发表于 2016-12-6 00:58:31

另外，我们的MEL提到的是快速，却又没有10s这个说法，这里和楼上几位大神探讨一下

ryn_82 · 发表于 2016-12-6 10:37:53

拆飞机的麦兜兜发表于 2016-12-6 00:31
请教一下阮工，在FIM上查到的放人工位再放回的复位，和在CPC上的system test&clear有什么区别，都是抹除故 ...

一个是自检测试和清除故障历史的；一个只是消除目前的故障状态，恢复CPC至可用。

ryn_82 · 发表于 2016-12-6 15:15:39

看手册很仔细。

刚好相同的问题我之前问过波音：

DESCRIPTION:

Description
======================
MMEL 21-14-03:
NOTE: Some DCPCS faults indicated by an AUTO FAIL Light are recoverable. Momentarily re-position the Pressurization Mode Selector to MAN and then back to AUTO.  If the AUTO FAIL light remains extinguished with the Pressurization Mode Selector in AUTO, the fault has been corrected and the controller is operating normally.

FIM 21-31 TASK 801:
B.(1).(c) Reset the cabin pressure controller for any reset recoverable faults as follows:
1) Set the mode selector on the cabin pressure control module on the P5-6 panel to MAN for 10 seconds.
2) Set the mode selector on the cabin pressure control module to AUTO.

Desired Action
======================
To reset the cabin pressure controller for  reset recoverable faults,the MMEL suggest momentarily re-position the Pressurization Mode Selector to MAN and then back to AUTO,but the FIM require set the selector to MAN for 10 seconds then set to AUTO.
1.Why are there differences between the MMEL and FIM?
2.Is set to MAN in order to reset the relays R556, R557, and R558?

Purchase Order Number (if required)
======================

RESPONSE AND/OR REQUIRED ACTION :

RESPONSE:

1. The DDG note is there to inform maintenance personnel that some DCPCS faults are recoverable.  The procedure in this DDG note for this item is there as a courtesy to help maintenance personnel what they should do in general.  So the procedure in the note is correct, just that it does not have the amount of time to wait before switching from MAN back to AUTO.  Generally speaking, troubleshooting information is not required in the DDG.  As a reminder, the DDG is a guide for operators to create their own company MEL.  We have no objection the 10 second time element in China Eastern Airlines' MEL.

2. Yes, place the Mode Selector (S1) to MAN will reset the system relays (R556, R557, and R558). The Cabin Press Controller 1 (2), M1653 (M1654) will then deactivate.

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