Safety Requirement Details
Use Global Ensure ADS B Ground Station use global unambiguous decoding unambiguous decoding to eliminate problem associated with range greater than
180NM
Comprehensive Tested and proven ADS-B ground stations testing of ADS-B with comprehensive checking of integrity Ground System data (e.g. use of checksums in ADS B messages) are used for the trial
Checking of ADS-B a/c Procedures shall be developed for cross
ident checking of ADS-B positional data with data provided by other navigational systems (not GPS) in certain circumstances.
Project ICAO SASPOperational Use of ADS-B in Non Radar Airspace
Hazard No. 35 Failure of GPS Time system
Generic Description Failure of GPS time system input to ADS B track processor will cause loss of time synchronisation and could lead to incorrect aircraft position extrapolation
Hazard Cause/Initiating Events Potential inaccuracy caused by GPS time failure
Initial Risk Residual
Risk
Likelihood Remote Remote
Consequence Cat 3 Cat 3
Risk D D
Existing Mitigation
Safety Requirement Details
Procedure to remove Developed and published procedure to corrupted ADS B data remove corrupted ADS B data from the ground system to ensure that the FDR is not updated.
Time alert message Ensure an alert message is presented to maintenance supervisor when extrapolation time exceed a defined parameter.
Monitoring of time Ensure status of time system is being system monitored
Project ICAO SASPOperational Use of ADS-B in Non Radar Airspace
Hazard No. 36 Mixed operating environment - ADS B, Flight Plan and Radar tracks
Generic Description The system will introduce an additional track (ADS B) to the current environment which will introduce a risk that the controller may inadvertently apply radar or ADS B separation standard to the Flight Plan track.
Hazard Cause/Initiating Events Potential for incorrect separation standard applied to the Flight Plan track
Initial Risk Residual
Risk
Likelihood Occasional Remote
Consequence Cat 3 Cat 3
Risk C D
Existing Mitigation
Safety Requirement Details
Provide ADS-B Training and lesson plans to support air
training capability traffic control of ADS-B equipped aircraft in
non radar airspace
Adequate ATC Ensure adequate training and assessment of
training and controller for rating.
Coverage awareness Ensure coverage awareness is covered
during ATC training during ATC training for use of ADS B.
Use proven and ADS-B HMI is consistent with current ground
consistent HMI HMI with ability to deselect all ADS-B data
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
Integration of ADS-B Ground automation system to process and 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：Operational Use of ADS-B In Non Radar Airspace Generic Desig(26)
