Subject: Recognizing and Mitigating Global Positioning System (GPS) / Global Navigation Satellite
System (GNSS) Disruptions.
Purpose: This SAFO provides information and guidance to operators and manufacturers regarding
operations in a GPS/GNSS disrupted environment.
Background: Recent GPS/GNSS jamming and spoofing activities reported by civil air operators
operating globally pose a potential safety of flight risk to civil aviation. GPS/GNSS disruptions often
occur in and around conflict zones, military operations areas, and areas of counter unmanned aircraft
systems (UAS) protection. The term GNSS includes satellite augmentation systems.
SAFO 24002
Contact: Direct questions or comments regarding this SAFO to the Flight Technologies and Procedures
Division, Flight Operations Group at (202) 267-8790 or e-mail: 9-AWA-AVS-AFS410@faa.gov.
