CS ACNS.E.LAD.170 Transmission of a
homing signal
ED
Decision 2021/008/R
(a) In case of a survivable accident, a 121.5-MHz homing signal is automatically transmitted after reaching the point of end of flight. The characteristics of the 121.5-MHz homing signal are compatible with standard homing direction finders.
(b) The flight crew can manually initiate the transmission of a 121.5-MHz homing signal, at least when the aircraft is not airborne.
(c) The flight crew can manually stop the transmission of the 121.5-MHz homing signal whether this transmission was automatically or manually initiated unless the homing-signal transmitter is detached from the aircraft.
(d) The 121.5-MHz homing signal is transmitted for at least 48 hours or until the aircraft is submersed.
[Issue: CS-ACNS/3]
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