关于VHF常发射的问题求助？！

强子 · 发表于 2009-10-11 13:31:50

我们一架321飞机在空中出现VHF1 EMITTING的警告，通过复位VHF1收发组断路器和侧杆发话电门后，警告消失，飞机落地后正常，这个警告最可能的原因是什么呢？还有如果是侧杆发射电门故障导致的怎么才可以放行呢？怎么才能减少排除这种故障的次数呢？

强子 · 发表于 2009-10-11 14:49:02

哦，没有电子方面厉害一点的人吗？

zouqingkai · 发表于 2009-10-12 16:15:29

针对此警告信息还是先看TSM手册TASK23-12-00-810-810。至于放行一定要依据MEL，不然你就违反了目前开展的“三项行动”。

zouqingkai · 发表于 2009-10-12 16:46:45

TASK 23-12-00-810-810
Continuous Transmission of the VHF 1 Transceiver for more than 60 s
1 . Possible Causes
- XCVR-VHF, 1 (1RC1)
- AMU (1RN)
- ACP-CAPT (2RN1)
- ACP-F/O (2RN2)
- ACP-3RD OCCPNT (2RN3)
- wiring
- SW-RAD PTT, CAPT (11RN)
- RCPT-HAND MIC, CAPT (19RN1)
- SW-RAD PTT, F/O (12RN)
- RCPT-HAND MIC, F/O (19RN2)
- RCPT-HAND MIC, F/O (19RN3)
2 . Job Set-up Information
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
IPC 235108
AMM 23-12-00-710-001 Operational Test of the VHF System
AMM 23-12-33-000-001 Removal of the VHF Transceiver (1RC1, 1RC2, 1RC3)
AMM 23-12-33-400-001 Installation of the VHF Transceiver (1RC1, 1RC2,
1RC3)
AMM 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2,
2RN3, 2RN4, 2RN5)
AMM 23-51-12-400-001 Installation of the Audio Control Panel (ACP) (2RN1,
2RN2, 2RN3, 2RN4, 2RN5)
AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN)
AMM 23-51-34-400-001 Installation of the Audio Management Unit (AMU) (1RN)
AMM 27-92-41-000-001 Removal of the Side Stick Assembly 19VU (18VU)
AMM 27-92-41-400-001 Installation of the Side Stick Assembly 19VU (18VU)
ASM 23-12/01
ASM 23-51/02
ASM 23-51/03
ASM 23-51/04

A3 . Fault Confirmation
A. Test
Do the operationnal test of the VHF system (Ref. AMM TASK 23-12-00-710-
001).
NOTE : Do the transmission test for more than 60 s to see the ECAM
warning on the upper ECAM DU.
(The COM VHF 1 EMITTING message comes into view after 60 s of
continuous transmission).
NOTE : Do this test at each crew station to find which station is related
with the failure.
NOTE : Do this test for the VHF 1 system only.
NOTE : At the end of the test (before you do the fault isolation
procedure), make sure that these controls are not in the transmit
position:
- the VHF 1 transmission pushbutton switch on an Audio Control
Panel
- a radio PTT switch on one of the two side sticks
- a radio PTT pushbutton switch
- a hand mike selector.
4 . Fault Isolation
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
49VU COM/VHF/1 2RC1 G09
B. After 60 s, when the VHF 1 transmission stops, this ECAM warning does not
go out of view:
- COM VHF 1 EMITTING.
(1) If the above warning does not go out of view after action on the VHF
1 transmission pushbutton switch (green bars off) (on the ACP of the
related station):
R - go to Para. 4.D.
(2) If the above warning goes out of view after action on the VHF 1
transmission pushbutton switch (green bars off) (on the ACP of the
related station):
- go to Para. 4.C.SM 23-51/06
C. Open the circuit breaker 2RC1 on the panel 49VU, then close it.
(1) If the fault continues:
- do a check for ground at the pin AB/1D of the VHF 1 transceiver
(1RC1) (Ref. ASM 23-12/01).
(a) If there is no ground signal at this pin:
- do a check and repair the wiring from VHF 1 transceiver (1RC1)
pin AB/1D to the first terminal block (Ref. ASM 23-12/01)
(b) If there is a ground signal at this pin:
- replace the XCVR-VHF, 1 (1RC1) (Ref. AMM TASK 23-12-33-000-001)
and (Ref. AMM TASK 23-12-33-400-001).
1 If the fault continues:
- replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and
(Ref. AMM TASK 23-51-34-400-001).
2 If the fault continues:
- do a check and repair the wiring between AMU (1RN) pin AA/1F
and VHF 1 transceiver (1RC1) pin AB/1C (Ref. ASM 23-51/06)
- go to Para. 4.D.
D. The fault is at one of the 3 crew stations.
(1) If the fault is at the Captain station:
- do a check of continuity between pin AA/9J and pin AA/9K of the AMU
(1RN) (Ref. ASM 23-51/02).
(a) If there is continuity between the two pins:
- replace the SW-RAD PTT, CAPT (11RN) (Ref. AMM TASK 27-92-41-
000-001) and (Ref. AMM TASK 27-92-41-400-001).
1 If the fault continues:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref.
AMM TASK 23-51-34-400-001).
2 If the fault continues:
- do a check and repair the wiring between AMU (1RN) pins
AA/9J, 9K and pins 1, 2 of the radio PTT switch (11RN) (Ref.
ASM 23-51/02).
(b) If there is no continuity between the two pins:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM
TASK 23-51-34-400-001).
1 If the fault continues:
- replace the ACP-CAPT (2RN1) (Ref. AMM TASK 23-51-12-000-001)
and (Ref. AMM TASK 23-51-12-400-001).
2 If the fault continues:
- connect a new hand microphone to the Captain hand microphone
receptacle (19RN1) on the panel 17VU.
3 If the fault continues:
- replace the RCPT-HAND MIC, CAPT (19RN1) (Ref. IPC 235108).
4 If the fault continues:
- do a check and repair the wiring (between AMU (1RN) pins
AA/10F, 10G and pins 1 and 2 of the Captain hand microphone
receptacle (19RN1)) (Ref. ASM 23-51/02).
(2) If the fault is at the First Officer station:
- do a check of continuity between pin AA/12J and pin AA/12K of the
AMU (1RN) (Ref. ASM 23-51/03).
(a) If there is continuity between the two pins:
- replace the SW-RAD PTT, F/O (12RN) (Ref. AMM TASK 27-92-41-000-
001) and (Ref. AMM TASK 27-92-41-400-001).
1 If the fault continues:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref.
AMM TASK 23-51-34-400-001).
2 If the fault continues:
- do a check and repair the wiring between AMU (1RN) pins
AA/12J, 12K and pins 1, 2 of the radio PTT switch (12RN)
(Ref. ASM 23-51/03).
(b) If there is no continuity between the two pins:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM
TASK 23-51-34-400-001).
1 If the fault continues:
- replace the ACP-F/O (2RN2) (Ref. AMM TASK 23-51-12-000-001)
and (Ref. AMM TASK 23-51-12-400-001).
2 If the fault continues:
- connect a new hand microphone to the First Officer hand
microphone receptacle (19RN2) on the panel 16VU.
3 If the fault continues:
- replace the RCPT-HAND MIC, F/O (19RN2) (Ref. IPC 235108).
4 If the fault continues:
- do a check and repair the wiring (between AMU (1RN) pins
AA/13F, 13G and pins 1 and 2 of the First Officer hand
microphone receptacle (19RN2)) (Ref. ASM 23-51/03)
(3) If the fault is at the Third Occupant station:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK
23-51-34-400-001).
(a) If the fault continues:
- replace the ACP-3RD OCCPNT (2RN3) (Ref. AMM TASK 23-51-12-000-
001) and (Ref. AMM TASK 23-51-12-400-001).
(b) If the fault continues:
- connect a new hand microphone to the Third Occupant hand
microphone receptacle (19RN3) on the panel 62VU.
(c) If the fault continues:
- replace the RCPT-HAND MIC, F/O (19RN3) (Ref. IPC 235108).
(d) If the fault continues:
- do a check and repair the wiring (between AMU (1RN) pins AA/1F,
1G and pins 1 and 2 of the Third Occupant hand microphone
receptacle (19RN3)) (Ref. ASM 23-51/04).
E. Do the test given in Para. 3.

强子 · 发表于 2009-10-12 20:07:48

TSM我看过了，问题是MEL上没有侧杆发射电门粘连的放行说明，还有就是怎么才能减少这种故障的发生次数呢？

scal320 · 发表于 2009-10-12 21:09:39

MEL的M手册应该有说明的，就是把线剪断放行。
减少呢，不好说，因为不可能没有故障

虎里军军 · 发表于 2009-10-13 19:08:29

不懂这个

yasec · 发表于 2009-10-13 19:52:01

清洁不行串件，还是它问题就换新件送内场修

huduan · 发表于 2009-10-14 09:10:06

电子三大法宝：清洁，串件，更换。
减少的办法就是让飞行员少用，轻点使用

虎里军军 · 发表于 2009-10-19 23:22:25

有道理的

98742015 · 发表于 2010-11-12 18:07:16

3楼.........

dabaicai · 发表于 2010-11-12 20:57:56

波音的飞机碰到好几次，都是驾驶杆的电门卡死在发射位，短停把电门上的线脱开放行就好了，空客飞机没做过，侧杆应该也有吧

liu5031 · 发表于 2012-9-1 10:39:49

检查三个PTT

yeahto · 发表于 2012-9-1 20:01:25

SDAC会监控PTT的状态，超过一分钟就会产生HF/VHF EMITTING的警告

hsgao · 发表于 2012-9-1 21:08:57

一般出现这个现象有两种故障可能，321一般可能是侧杆PPT发话按钮粘连，把线剪开就行，还有一种可能就是手持话筒发话按钮粘连，有的话筒有个胶皮套会脱落将按钮包住，按钮就一直处于发射状态，可以将胶皮套拿掉，出现这种情况后应询问机组出线故障时哪个机组正在使用话筒或PTT来判断故障源

liu5031 · 发表于 2013-6-14 17:18:17

粘连PTT

yitaogao · 发表于 2014-10-27 20:32:16

一般是发射按钮长按导致的

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