Originally Posted by
n5296s
fwiw in the US you don't need anything special. As long as you have the correct certified equipment (e.g. Garmin GNS530W) you're good to go for LNAV and LPV.
That is not completely true. An indicator able to display the information, verification that the system is good enough in all bank and pitch angles, along with a RFMS is probably all required too, at least in the US.
For those having trouble sleeping, refer to the Major Repair and Alternation Job aid on
https://www.faa.gov/about/office_org...fx/afs/afs300/