There are a handful of hardware mods that have been made to the IFD540s since original cert.  Some folks are interested in knowing what those were and what their cut-in dates were/does their box contain the mods.

There are exceptions to the following summary (e.g. an IFD came in for service after original ship date and may have had a mod(s) applied, an IFD may have been held in production test for some reason and had delayed shipment and therefore a mod(s) applied prior to ship, etc) but in general, here are the mods and their cut-in serial number and ship dates:

OBS Calibration - S/N 1433xxxxx and later,  15 Sep 2014 ship date or later

DME Hardware Mod - S/N 1445xxxxx and later, 24 Nov 2014 ship date or later  (there are 12 exceptions)

Standby Com - S/N 1450xxxxx and later,  27 Jan 2015 ship date or later (there are 18 exceptions)

Since there were a number of exceptions (at least 30), if you really want to know what your unit has, supply your IFD(s) serial number and I can tell you exactly.

One more tip - when reading serial numbers, the first two digits are the calendar year of manufacture and the next two digits are the week in that year of manufacture.

Thanks for the update!  This will be a great place to keep us posted as things come up.

Are hardware mods covered under warranty or will Avidyne charge for those?  Is there any problem waiting until November when my plane's  IFR cert is due to see if any other hardware issues have come up and get the standby COM update done then?

Your list of mods was informative, but you didn't include the mod numbers, so I can't figure out what mod numbers go with what.

Here's what the sticker says on my unit:  Serial M144130988, P/N 700-00182-000 REV:01

Mod 1[ ], 2[x], 3[x], 4[x], 5[ ], 6[ ],........

So what has been done? What needs to be done? Hardware? Software?  I tried looking this up on MyAvidyne but there's nothing there.

FWIW, The unit is still in the box and hasn't been installed yet.

Thanks

But I'm pretty sure that I understand that my mod 4 unit has only Rev 01 on it, and still has Revs 02, 03, and 04 to go. That means a round trip to the factory, correct? It already did one round trip last month.

The rev I really want is 04, the standby audio, which won't really do anything until the next software release comes out. But my unit is just sitting, waiting to be installed. I want to fly it in April when the ice starts to melt in Wisconsin. Should I send the box to the factory now and get the revs done? Or wait for more stuff later?

Thanks

Mike

Dumb Question if you don't mind. <G>

What is the status of the TAWS option which I paid for when the initial order for my IFD540 was placed?

No big rush to get it, but I do have money involved!

Happy Skies,

Old Bob

Good Morning Gary T.,

Not interested in any refund, just happily waiting for a progress report on the TAWS-B that I ordered (and paid for). Wonder if it is a two year or five year thing. Not pushing, just curious.

Do not wish to be forgotten.

Happy Skies,

Old Bob

AviJake wrote: Mike, There are no more active mods currently underway.  Send me your serial number and I'll double check the exact pedigree of your unit before sending any recommendation.

Thanks, but I called your tech support guys on Monday and read my label to them. They were quite friendly and quickly figured out that I need a hardware mod. So my unit is making a vacation trip to sunny Florida.

That's probably the way I should have handled it to start with. This forum is great but the real tech support folks are there for a reason.

Mike