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ISSN 2083-6473
ISSN 2083-6481 (electronic version)




Associate Editor
Prof. Tomasz Neumann

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
Safety Case Activities in SHERPA Project
ABSTRACT: This paper has been issued in the framework of the SHERPA project under the Grant Agreement No 287246 with the GSA (European GNSS Agency). This document contains the main technical activities conducted by PANSA in the frame of project’s WP2000. The objectives of WP2000 are: To work towards the implementation of a LPV procedure at each of the scenarios; To develop EGNOS National Implementation Plans, To develop and EGNOS Regional Implementation Plan, To summarise EGNOS expected benefits in a single airport. Specifically, the objectives of this document are technical activities conducted towards the implementation of a LPV procedure in scenario: procedure design, safety assessment, business case, EGNOS service provision requirements. The first step shall be to describe the operational environment at the scenario including the level of ATS provided, CNS equipment, the airport ground equipment, airspace and any procedures in place. The purpose of the operational description is to define the CONOPS specific to the airport. The Final FHA of LPV approaches is based on the Operational Model of LPV approaches in the ECAC Area, which clearly defined nominal operations prior to analyse degraded cases. For each operational action (performed by either system, human operator or jointly in the successive phases of flight), relevant failure modes were identified. Each failure mode was then analysed in turn in terms of examples of causes (to check its validity), operational consequences and mitigations, hazards, rough risk comparison against ILS operations, and when pertinent, recommendations in terms of risk reducing measures to be considered. Safety Case Activities drawn up as part of the SHERPA project was accepted by GSA, EUROCONTROL. At present an algorithm of acting while designing and executing procedures constitutes final approaches according to GNSS.
APV SBAS Approach - Concept of Operations, CONOPS, 2009;
Operational and Functional model of LPV approaches in the ECAC area, OFM-LPV 2.0 2007;
Draft Guidance Material for the Implementation of RNP APCH Operations PBN TF6 WP06 Rev 1 05/01/2012
SHERPA Grant Agreement Grant number 287246
EASA - AMC 20-26 : Airworthiness Approval and Operational Criteria for RNP AR Operations;
EASA - AMC 20-27: Airworthiness Approval and Operational Criteria for RNP APPROACH (RNP APCH) Operations Including APV BARO VNAV Operations;
EASA - Helicopters Deploy GNSS in Europe (HEDGE) project documentation,
EATMP Navigation Strategy for ECAC;
EGNOS Introduction in European Eastern Region MIELEC project documentation,
EUR Document 001/RNAV/5 Guidance Material Relating to the Implemen-tation of European Air Traffic Management Programme;
FAA - AC 20-105: Approval Guidance for RNP Operations and Barometric Vertical Navigation in the U.S. National Airspace System;
FAA - AC 20-129: Airworthiness Approval for Vertical Navigation (VNAV) Systems for Use in the U.S. National Airspace System (NAS) and Alaska;
FAA - TSO C146A: Stand-Alone Airborne Navigation Equipment Using the Global Positioning System Augmented by the Wide Area Augmentation System (WAAS);
FAA: TSO C145A: Airborne Navigation Sensors Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS);
Fellner A. SHERPA-PANSA-NMA-D11EP Issue: 01-00 EGNOS Poland Marked Analysis, 2012
Fellner A. SHERPA- PANSA-NSR-D21EP,2014
ICAO Annex 10,
ICAO Doc 8168 – PANS-OPS,
ICAO Doc 9613 – PBN Manual,
ICAO Doc 9905 – RNP AR Procedure Design Manual
ICAO Doc. 7754 European Region Air Navigation Plan;
ICAO European Region Transition Plan to CNS/ATM;
ICAO Global Air Navigation Plan for CNS/ATM Systems. Doc 9750;
Citation note:
Fellner A.: Safety Case Activities in SHERPA Project. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 14, No. 3, doi:10.12716/1001.14.03.14, pp. 631-636, 2020
Authors in other databases:
Andrzej Fellner: Scopus icon53867812700

Other publications of authors:

M. Grzegorzewski, J. Ćwiklak, H. Jafernik, A. Fellner

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