AMC1 ACNS.C.PBN.610 Source of horizontal position

• ED Decision 2019/011/R found in: GM Remote Aerodrome Air Traffic Services (ED 2019/004/R) Issue 2 (Jul 2020)

AMC1 ACNS.C.PBN.610 Source of horizontal position ED Decision 2019/011/R As a minimum, the inertial positioning source needs to comply with the criteria of [Appendix B](#_DxCrossRefBm573002384). The applicant should, however, demonstrate that circular error of the inertial system supports a safe extraction, as defined in [AMC1 ACNS.C.PBN.605](#_DxCrossRefBm573002587) in case of loss of GNSS. This may imply that the design of the inertial position source needs to exceed the performance criteria described in [Appendix B](#_DxCrossRefBm573002384). If the RNP system does not exclude VOR-updating automatically, the applicant should identify any pilot procedures for an aircraft to comply with this requirement. [Issue: CS-ACNS/2]