Hazard No. 10 RF Jamming
Generic Description
RF jamming of ADS-B transmissions due to deliberate or non deliberate actions.
Hazard Cause/Initiating Events
Loss of ADS-B positional data to the controller. Increase in workload due to requirement to transition back to
procedural
control
Initial Risk Residual
Risk
Likelihood Improbable Improbable
Consequence Cat 3 Cat 3
Risk D D
Existing Mitigation
Safety Requirement Details
ADS-B Fallback Validated and published instructions procedure for reverting back to procedural control
Transition Process for Training and lesson plans to adequately ADS-B Failure cover the transition process and procedures from ADS-B control to procedural control
Project ICAO SASPOperational Use of ADS-B in Non Radar Airspace
Hazard No. 11 Jamming of GPS transmissions from the satellites
Generic Description
Jamming of GPS transmissions from the satelites due to deliberate or non deliberate actions.
Hazard Cause/Initiating Events
Loss of ADS-B positional data to the controller. Increase in workload due to requirement to transition back to
procedural
control
Initial Risk Residual
Risk
Likelihood Remote Remote
Consequence Cat 3 Cat 3
Risk D D
Existing Mitigation
Safety Requirement Details
Remove ADS-B tracks When downlink positional data is reduced for poor positional below NUC = VSP (Variable System Parameter - typically 5), ADS-B tracks will be removed within 30 secs
On-line integrity A site monitoring system shall provide a monitoring using site degree of on-line integrity monitoring. A monitor warning shall be issued to ATC if the site monitor is not received or indicates a low NuC value
ADS-B Fallback Validated and published instructions procedure for reverting back to procedural control
Transition Process for Training and lesson plans to adequately ADS-B Failure cover the transition process and procedures from ADS-B control to procedural control
Processing based on Automation system to detect the reduction accuracy performance in accuracy performance and not used that data if it is below the threshold of NUC = VSP (Variable System Parameter- typically 5) and display appropriate visual notification to the controller concerned.
Project ICAO SASPOperational Use of ADS-B in Non Radar Airspace
Hazard No. 12 Failure of GPS satellite or satellites
Generic Description
Failure of GPS satellite or satellites due to system problem.
Hazard Cause/Initiating Events
Loss of ADS-B positional data to the controller. Output NUC drops and ADS-B not displayed to controller. Increase
in
workload due to requirement to transition back to procedural control
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