AMC1 ACNS.C.PBN.205 RNP
system approval
ED Decision 2019/011/R
For all navigation specifications except RNP 0.3:
(a) where the RNP system architecture is based on a stand-alone system, the RNP system should be granted a European Technical Standard Order (ETSO) authorisation against the following ETSO:
(1) ETSO-C146c (operational Class 3).
(2) ETSO-C190 active antenna.
(b) where the RNP system architecture is based on a flight management system (FMS) receiving input from various sources of position, the FMS should be granted an ETSO authorisation against ETSO-C115d and, depending on the type of sources to determine position, these should be granted an ETSO authorisation against the following ETSO or be compliant with the following standards:
(1) GNSS position source against ETSO-C196a or ETSO-C145c (operational Class 3);
(2) GNSS antenna against:
(i) ETSO-C144a passive antenna when an ETSO-C196a GNSS position source is installed, or;
(ii) ETSO-C190 active antenna when an ETSO-C196a or ETSO-C145c GNSS position source is installed.
(3) DME/DME horizontal position source based on a DME interrogator that has been granted an ETSO authorisation against ETSO-2C66b;
(4) barometric altimeter: ETSO-C106 Amendment 1.
(c) with reference to CS ACNS.A.GEN.020, any deviations from the ETSOs should be evaluated against the relevant sections of EUROCAE ED-75D Minimum Aviation System Performance Standard (MASPS).
(d) noting that there is no equipment standard for INS/IRU horizontal position source, this equipment should comply with the functionality and performance that is detailed in Appendix B.
[Issue: CS-ACNS/2]
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