GM1 ACNS.E.LAD.010 Definitions

• ED Decision 2021/008/R found in: GM Remote Aerodrome Air Traffic Services (ED 2019/004/R) Issue 2 (Jul 2020)

GM1 ACNS.E.LAD.010 Definitions ED Decision 2021/008/R COMMON GUIDANCE FOR ALL SOLUTIONS (a) A survivable accident is usually understood as an accident where some aircraft occupants could survive. However, for the purpose of demonstrating the performance of the system in conditions representatives of a survivable accident, the definition of ‘survivable accident’ in this Section is based on the environmental conditions applicable to an ELT(AF), specified in EUROCAE ED-62B (including Change 1), Chapter 4. (b) The following terms, as defined in EUROCAE ED-62B (including Change 1), are used for ELTs throughout this Section: (1) ‘class’: determines a range of operating temperatures; (2) ‘capability C (crash survivability)’: means meeting minimum crash-resistance specifications; (3) ‘capability H1 (121.5-MHz homing signal)’: means transmitting a homing signal at a frequency of 121.5 MHz; (4) ‘capability G (internal/integral GNSS receiver)’: means containing a GNSS receiver and transmitting GNSS coordinates through the 406-MHz signal; (5) ‘capability T.001 (first generation)’: means meeting the requirements of COSPAS-SARSAT document C/S T.001 ‘Specification for Cospas-Sarsat 406MHz Distress Beacons’; and (6) ‘capability T.018 (second generation)’: means meeting the requirements of COSPAS‑SARSAT document C/S T.018 ‘Specification for Second Generation Cospas-Sarsat 406MHz Distress Beacons’. (c) Non-dedicated airborne data sources that are used for the detection of activation conditions are usually not considered part of the system, except for the source of position information that is transmitted through the activation signals. (d) An automatic triggering function is intended to activate the system before an accident occurs and should not be confused with a crash sensor. [Issue: CS-ACNS/3]