Procedures

[aterpster]

rudderrat:

My company SOPs say we need GPS Primary.
But according to Jeppesen:
http://jeppesen.com/download/aopa/dec00aopa1.pdf it seems you could do it with an FMS system provided its position is updated to RNP 0.3 (DME/DME)

That article was written a long time ago. When he wrote it the FAA did allow DME/DME for RNAV IAPs. They found out the hard way that was not a good idea so it has been GPS only for quite a few years now.