Position Paper IFALPA/IFATCA: Disruption of Satellite-Based Signals
This paper supersedes 21POS07, of the same name. Modern air traffic relies heavily on the internal accuracy of aircraft systems and the aircraft's ability to monitor its own reliability. Satellite-based Communication, Navigation and Surveillance (CNS) services have been playing a growing part in the overall ATM system and aircraft are becoming more reliant on space-based signals (...)
IFALPA Briefing Leaflet: Effects of Manipulated GNSS Signals on Aircraft and Mitigation Measures
Recent reports show that various civil aircraft have been subject to altered GNSS signals in Azerbaijan, Iran, Iraq, and Turkey. Manipulated GNSS signals can compromise aircraft navigation systems, potentially leading to complete navigation loss, with severe safety implications (...)
Safety Bulletin IFALPA: GNSS Interference at Mexico City
Over the past year, various operators have reported the loss of GNSS signal in the MMMX terminal area. GNSS signal jamming in MMMX could result in navigation errors and/or avionics system failures. While this impacts the approach phase of flight, the remaining threat to terminal operations still exists.
Safety Bulletin IFALPA: GNSS Outage Leading to Navigation/Surveillance Degradation
17 March 2022 - The European Union Aviation Safety Agency (EASA) has issued the attached safety bulletin. Please review and share where applicable.
Safety Bulletin IFALPA: GNSS Interference on Aircraft
GNSS signal interference (whether intentional or unintentional) can occur at any time, with or without prior notice. Flight Crews should be aware of the potential risk and plan for alternative procedures as necessary.
Safety Bulletin – GNSS Vulnerabilities
18 July 2019 - The Regional Aviation Safety Group for the Middle East Region (RASG-MID) has issued a Safety Advisory concerning GNSS Vulnerabilities and provided guidance material to mitigate the safety and operational impact of GNSS service disruption. The Safety Advisories are issued to encourage States and aviation Stakeholders to adopt practices that mitigate major aviation safety risks in the Middle East Region as identified through the analysis of regional safety data. This IFALPA Safety Bulletin is meant to disseminate the information contained in the Safety Advisory.