7C1673

[flyoverfred]

PA31 N628HA is somehow pinging the above OZ code (VH-EPX) when it should be A834A5 !! It has no Australian history so no real explanation !

[s92driver]

Perhaps it's been fitted with a Transponder that was once in VH-EPX and the technician didn't change the DIP switches.  Once intalled, it's generally not possible to change the code without removing it again.

[flyoverfred]

Perhaps it's been fitted with a Transponder that was once in VH-EPX and the technician didn't change the DIP switches.  Once intalled, it's generally not possible to change the code without removing it again.

I don't know of they are a standard fit but VH-EPX was a helicopter and the other is a PA31

[Ospreyv22]

Interestingly enough, but 71C673 should be on a P68C c/n 513/c VH-EPX with the Reg being used the 3rd time around,
Don't know if that's added to any confusion over the Hex Code or helped.

Regards

Ian

[IanH]

Looking at the two hexcodes in binary format, there does not seem to be any overlap.

Other miscodes are usually just a 0/1 interchanged (perhaps a couple of times).

The differences between these two would have to be a random setting of the switches to give the wrong hexcode.

Simplest to believe a box moved to another aircraft.