---
title: "5.2.7.8 Failure detection — Formal title, Remote ATS · Avioverse"
description: "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…"
url: "https://avioverse.aero/regulations/easa/remote-ats/formal-title/guidance-material-on-remote-aerodrome-ats/5-2-7-8"
---

# 5.2.7.8 Failure detection

Formal title · GM to Regulation (EU) 2017/373 · EAR revision 26 Jan 2026

IR Implementing rule

## 5.2.7.8 Failure detection

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 ‘Failure or irregularity of aids and equipment’, the [remote tower](https://avioverse.aero/glossary/easa/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](https://avioverse.aero/glossary/easa/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).

IR · 5.2.7.8 — GM to Regulation (EU) 2017/373 · ED Decision 2023/005/R · Remote ATS Easy Access Rules · EAR revision 26 Jan 2026

[All rules in GUIDANCE MATERIAL ON REMOTE AERODROME ATS](https://avioverse.aero/regulations/easa/remote-ats/formal-title/guidance-material-on-remote-aerodrome-ats)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.