5.2.7.8 Failure detection

• ED Decision 2023/005/R found in: GM Remote Aerodrome Air Traffic Services (Jan 2026)

##### 5.2.7.8 Failure detection *ED Decision 2023/005/R* In order to fulfil Regulation (EU) 2017/373 [4], ATS.OR.140 ‘Failure or irregularity of systems and equipment’ as well as ICAO Doc 4444 [14] Chapter 7.1.3[[26]](#_ftn26) ‘Failure or irregularity of aids and equipment’, the remote tower system should enable the ATCO/AFISO to detect any failure or irregularity which could adversely affect the safety or efficiency of flight operations and/or the provision of ATS, such as corrupt, delayed (beyond the defined maximum latency value) or frozen image of the visual surveillance system. ***Note:*** *Technical standards for maximum video failure notification time can be found in EUROCAE ED-240A Change 1 [19] (VC REQ 4).* --- [[26]](#_ftnref26) ICAO Doc 4444 [14] Chapter 7.1.3 has not been transposed into the EU regulatory framework.