Hazard No. 7 Failure of ADS-B processing subsystem
Generic Description
Failure of the ADS-B processing subsystem in the ground system.
Hazard Cause/Initiating Events
ADS-B tracks will not be displayed on the controller HMI therefore will cause an increase in workload due to the
requirement to transition back to procedural control.
Initial Risk Residual
Risk
Likelihood Occasional Improbable
Consequence Cat 3 Cat 3
Risk C 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
High reliability The ADS-B processing sub-system requirement for with MTBF requirement of at least 30 years ADS-B and MDT of equal of less than 2 hours subsystem
Project ICAO SASPOperational Use of ADS-B in Non Radar Airspace
Hazard No. 8 Inadequate ATS Training
Generic Description
Introduction of new ADS-B function is new to ATS and inadequate training will introduce a hazard to the system.
Hazard Cause/Initiating Events
Insufficient training in the areas of HMI, new procedures and transition from ADS-B control to procedural control may
increase the probability of breakdown in separation.
Initial Risk Residual
Risk
Likelihood Occasional Remote
Consequence Cat 3 Cat 3
Risk C D
Existing Mitigation Training standard manual exist and is required to be followed.
Safety Requirement Details
Integration of ADS-B Ground automation system to process and data with FDP integrate the ADS-B data with existing FDP function and display the ADS-B tracks with a unique symbol on the controllers display.
ADS-B Training Provision of an ADS-B training system System capability on the Eurocat simulator.
Ergonomic Ergonomic performance is consistent and performance comparable with existing ground system consistent with automation system
Use proven and ADS-B HMI is consistent with current ground consistent HMI HMI with ability to deselect all ADS-B data
Provide ADS-B Training and lesson plans to support air training capability traffic control of ADS-B equipped aircraft in non radar airspace
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. 9 Flooding of the ADS-B messages
Generic Description
Flooding of the ADS-B broadcast messages caused by multiple transponders transmitting at the same time.
Hazard Cause/Initiating Events
A loss of positional data (update) during the period of flooding. Increase workload for control in reverting to
procedural
control
Initial Risk Residual
Risk
Likelihood Remote Improbable
Consequence Cat 3 Cat 3
Risk D D
Existing Mitigation
Safety Requirement Details
Proven ADS-B Ground Use tested and proven ADS-B ground Stations to handle at stations that can handle at least 200 least 200 reports airborne reports.
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