U.S. opts not to require 406 ELTs | Aviation International News

Regulations and Government

U.S. opts not to require 406 ELTs

Most pilots by now have heard about the plan to end satellite monitoring of emergency locator transmitter (ELT) distress signals broadcast over 121.5- and

By Stephen Pope

November 28, 2007

Most pilots by now have heard about the plan to end satellite monitoring of emergency locator transmitter (ELT) distress signals broadcast over 121.5- and 243-MHz frequencies after Feb. 1, 2009. But many might not realize there is no specific regulation in the U.S. requiring ELT upgrades to the new 406-MHz standard being adopted in much of the rest of the world.

Part of a transition to ELTs that transmit their distress signals solely on 406 MHz, the change is being driven by Cospas-Sarsat, the international search-and-rescue organization that uses satellite-aided tracking to locate downed aircraft and lost ships. Before the switch, most ICAO member countries are requiring ELT upgrades to meet the new 406-MHz standard. The U.S. and Canada, however, haven’t even issued regulatory proposals for such a change. And that suits many in the aviation industry just fine.

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