AMC2 ACNS.E.LAD.240 Automatic activation
ED
Decision 2021/008/R
ACCEPTABLE MEANS OF COMPLIANCE APPLICABLE TO SOLUTIONS BASED ON AN ELT(DT) AND TO SOLUTIONS BASED ON HRT
(a) The system should include an automatic triggering function to activate the ELT(DT) or the HRT, as applicable.
(b) The criteria that are used by the automatic triggering function should comply with EUROCAE ED-237, except that if the aircraft is not equipped with an ELT(AF) or (AP), the automatic triggering function should not be inhibited when the aircraft is airborne. If the accidents and incidents flight data sets that are referred to in EUROCAE ED-237, Appendix 1 do not cover all possible scenarios, additional accident or incident flight data sets should be included to verify the event detection rate.
(c) In addition to (b), the system should be automatically activated upon detection of conditions that:
(1) occur during the flight,
(2) disable the automatic triggering function, and
(3) are unlikely during normal aircraft operation.
[Issue: CS-ACNS/3]
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