ETSO-C129a#6 – Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS)
Deviate from EUROCAE ED-72A Section 3.2.2.4.j.(4), -(5) and provide a smooth full scale cross track deviation transition instead of full scale switching.
ETSO-C129a#7 – Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS)
a) Deviate from EUROCAE ED-72A Section 3.2.2.4.j(4) and enable the approach 3 NM prior to the FAF or the FACF, if a CF leg is coded as start of the sequence.
b) Provide the scale change alert 15 seconds instead of 3 NM prior to the FAF or FACF
ETSO-C129a#8 – Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS)
Deviate from EUROCAE ED-72A Section 3.2.2.4.f(3) and allow automatic leg sequencing for procedure turns vs. the ETSO requirement of manual leg sequencing.
ETSO-C129a#9 – Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS)
Deviate from EUROCAE ED-72A Section 3.2.2.4.j(2) and enable the approach alert at 50 NM from the destination airport vs. the requirement of alerting at 30 NM.
Use a two step operation to select the approach mode after the alert message has been received if not displaying the typically selected NAV page.
ETSO-C129a#10 – Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS)
Deviate from EUROCAE ED-72A Section 3.1.2.1 table 3-2 and use the interference levels as specified by RTCA DO-229C Appendix C.
