GM2 ACNS.C.PBN.101 Applicability

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

GM2 ACNS.C.PBN.101 Applicability ED Decision 2019/011/R With the publication of CS-ACNS, AMC 20-4A, AMC 20-5, AMC 20-12, AMC 20-26, AMC 20-27A, AMC 20-28, JAA TGL-10 and CM-AS-002 Issue 2 have become obsolete. This, however, does not invalidate existing approvals to these references. Changes to aircraft/systems that were approved to the above AMC-20 references or TGL will be handled as follows: — Where the change remains within the original scope of the AMC or TGL, i.e. no new functionality is added, the applicant may continue to use the criteria of the AMC or TGL as the certification basis for the change. — Where the change is outside the original scope of the AMC or TGL, i.e. a new functionality is added, the corresponding certification criteria in CS-ACNS are to be applied. Given the differences in the set‑up of the AMC/TGL compared to CS-ACNS, an applicant may, within reason, claim credit for items already demonstrated to an AMC or TGL that are similar to the requirements in CS‑ACNS. Examples: 1) An aircraft has been approved to perform RNP AR operations to the criteria of AMC 20-26. The applicant is updating the software of the flight management system, but no additional functionality is being added. In that case, the criteria of AMC 20-26 continue to be applicable. 2) An aircraft has been approved to conduct RNP APCH operations to LNAV or LNAV/VNAV using barometric VNAV in accordance with AMC 20-27A. The applicant is replacing the GNSS receiver with one that can receive differential correction signals from a satellite based augmentation system (SBAS) and adds the capability to operate on RNP APCH approach procedures to LP or LPV minima. This capability was not within the original scope of AMC 20-27A. The applicant should, therefore, apply the criteria of the new CS-ACNS. Credit may be claimed for items already demonstrated as part of the compliance demonstration to AMC 20-27A, where these may be considered to be reasonably similar and applicable. [Issue: CS-ACNS/2]