737NG飞机主电瓶充电器故障技术交流

花少 · 发表于 2013-6-5 09:08:17

更换电瓶充电器课件

737NG飞机主电瓶充电器故障

技术交流

虹桥车间三工段

短停期间B738/B-5719飞机启动发动机后机组反应驾驶舱电源面板“ELEC灯”亮，并且电瓶持续向外输出。 根据FIM手册索引中FAULT DESCRIPTION对应找到以下工作程序：

FIM开始描述了故障的显示、可能的原因以及抹除的方法。 801. P5-13 ELEC Light Message BITE Procedure Figure 201
A. General (1) You do the BITE procedure at the front panel of the electrical meters, battery and galley power
module (P5-13). The P5-13 module is located on the P5 overhead panel in the flight compartment. (2) The P5-13 module does a self test at power up. If the module has internal faults, preventing
normal operation, the meter will display all dashes. (3) The P5-13 module has an ELEC light which indicates that faults are detected and that the
associated maintenance messages are stored in the P5-13. (4) The maintenance messages show in the order that they occur, except for INTERFACE FAILURE
which will show first. The maintenance messages are listed as follows: (a) INTERFACE FAILURE
(b) BAT CHGR INOP (c) AUX BAT CHGR INOP
(d) STAT INV INOP (e) SPCU INOP
(f) VOLT FILTER 1 (5) If any of the maintenance messages are intermittent and no longer exist, the maintenance
message is followed by a blank space and the letter "I". (6) The ELEC light comes on if a fault is detected and the airplane is on the ground. The ELEC light
will not come on when the airplane is in air mode. (7) The maintenance messages are stored in memory even when power is removed from the panel.
Messages are cleared manually by using the MAINT switch. NOTE: Maintenance messages can not be cleared if the fault condition still exists.

进行测试的具体步骤：测试将AC和DC选择到“test”位自行开始并显示信息，“MAINT”键可以用于选择下一个信息， “HOLD”键用于抹除信息。 BITE Procedure (1) Do the BITE procedure for the P5-13 module: (a) Set the AC meter selector switch and the DC meter selector switch on the P5-13 front panel to the TEST position. (b) Push and release the MAINT switch on the P5-13 front panel to start the display test. NOTE: The display test makes all of the segments of the alphanumeric display show. This lets you make sure the display operates correctly. The display test automatically stops after a complete test cycle. 1) After the display test, the maintenance messages (if there are any), will show on the meter. The maintenance messages show one at a time. 2) Press the MAINT switch again to go to the next maintenance message. 3) After the last maintenance message, make sure this message shows: HOLD BUTTON CLEAR FAULTS. (c) To save the maintenance messages, do these steps: 1) Push and release the MAINT switch 2) Make sure the display changes to meter format. (d) To clear the maintenance messages, do these steps: 1) Push and hold the MAINT switch for 6 +/- 0.2 seconds. 2) Make sure this message shows: FAULTS CLEARED.
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电源故障指示测试（通过P92 E1跳开关模拟）： Make sure the BATTERY and CHARGER lights on the front panel of the battery charger are ON.
(l) Open this circuit breaker: Power Distribution Panel Number 2, P92
Row Col    Number       Name    E       1    C00809    BAT CHGR
NOTE: Leave the circuit breaker open for more than 60 seconds. (m) Close this circuit breaker:
Power Distribution Panel Number 2, P92 Row Col    Number       Name
   E       1    C00809    BAT CHGR (n) Get access to the flight compartment, make sure the ELEC light on the P5-13 panel is ON
在P5-13电源面板上进行测试，要求有“BAT CHGR INOP”信息，之后可通过按压HOLD键清除该信息 (o) Set both the AC meter selector switch and the DC meter selector switch to the TEST
positions. (p) Push and release the MAINT switch on the P5-13 panel to start the display test.
(q) After the display test is complete, push the MAINT switch to view the messages. (r) Make sure this message appears: BAT CHGR INOP.
(s) Push the MAINT switch until this message appears: HOLD BUTTON CLEAR FAULTS. (t) To clear the message push and hold the MAINT switch for 6 seconds.
(u) Make sure this message appears: FAULTS CLEARED. 全部工作结束后恢复到飞机原有正常状态。