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IFE Fault On A320  
User currently offlineLMML 14/32 From Malta, joined Jan 2001, 2565 posts, RR: 5
Posted (9 years 5 months 3 weeks 2 days 13 hours ago) and read 3808 times:

One of our A320's has an annoying fault. The IFE audio resets itself around 3-5 times in the space of a couple of hours. It is only off for a few seconds, then the chanel selector defaults to Ch3. If you are listening to another chanel you will need to re-select it again. The reading lights do the same thing.

Any tech people can tell why this happens as our technicians are baffled.

8 replies: All unread, jump to last
User currently offlineVC-10 From United Kingdom, joined Oct 1999, 3724 posts, RR: 31
Reply 1, posted (9 years 5 months 3 weeks 2 days 13 hours ago) and read 3800 times:
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It would help if you told us what IFE system it is (MAS, Hughes etc)

User currently offlineAvionicMech From United Kingdom, joined Jan 2005, 315 posts, RR: 3
Reply 2, posted (9 years 5 months 3 weeks 2 days 9 hours ago) and read 3765 times:

My first guess would be to look at any relays that power both the audio and reading light system and possibly change them. It could be that they are overheating causing them to 'relax' every 20 mins or so.

If it is a MAS system then I would look at the power to the Column Timer Decoder because that is what controls the PSUD's (in the overhead controlling the reading lights) and it also distributes the power to the SEB's (Seat Electronics Box).

But without having a wiring diagram it is also impossible to diagnose an aircraft system because they are all so very different.

User currently offlineLMML 14/32 From Malta, joined Jan 2001, 2565 posts, RR: 5
Reply 3, posted (9 years 5 months 3 weeks 1 day 23 hours ago) and read 3693 times:

Thanks for your replies. I will check what system we use on my next duty.

User currently offlineLMML 14/32 From Malta, joined Jan 2001, 2565 posts, RR: 5
Reply 4, posted (9 years 5 months 3 weeks 1 day 10 hours ago) and read 3624 times:

The system we have is Panasonic. So the problem may be similar to what Scarebus03 had.

User currently offlineKnoxibus From France, joined Aug 2007, 260 posts, RR: 22
Reply 5, posted (9 years 5 months 3 weeks 19 hours ago) and read 3562 times:

Quoting AvionicMech (Reply 2):
Column Timer Decoder

That's Boeing architecture...not Airbus

Several possibilities here. There might be a keyline going to the Main Multiplexer, which makes it reset the SEBs (power interrupt).

Or simply, the Main Mux (which should be distributing power to the SEBs) needs to be replaced.

However, if the reading light are also affected, I would suspect the CIDS to be impacted as well. I would assume the cabin lights are also flickering. I know there are some issues with the IDGs and the A/C bus 2, but it should have been fixed by now.

Maybe you can ask your development/avionics people to contact Airbus customer support, that would be a first start!

No matter what anybody tells you, words and ideas can change the world.
User currently offlineCharlienorth From United States of America, joined Jun 2006, 1168 posts, RR: 4
Reply 6, posted (9 years 5 months 3 weeks 9 hours ago) and read 3497 times:

Try a CIDS reset or a new CIDS director,that can be a culprit in all of the above problems.

Work hard fly right..don't understand it
User currently offlineKELPkid From United States of America, joined Nov 2005, 6818 posts, RR: 3
Reply 7, posted (9 years 5 months 3 weeks 7 hours ago) and read 3472 times:

When you find the solution, be sure to let UA know...on my last trip with them (about a month ago), thier IFE was doing the same (A319 outbound, A320 coming back), it kept interrupting me listening to the flight deck on Ch. 9  Sad

Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineLMML 14/32 From Malta, joined Jan 2001, 2565 posts, RR: 5
Reply 8, posted (9 years 5 months 2 weeks 6 days 23 hours ago) and read 3438 times:

We have the panasonic system.

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