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Emergency Locator Transmitter (ELT) Sun 27.May 18
17:21.37 GMT
19:21.37 LT
 

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Emergency Locator Transmitter (ELT)
The Emergency Locator Transmitter is a battery-operated transmitter that, when subjected to crash-generated forces, transmits a continuous audio signal on the emergency frequencies 121.5 MHz and 243.0 MHz. The Emergency Locator Transmitter is designed to assist in locating downed aircraft and are required by FAR/JAA for most general aviation aircraft, although certain exceptions are allowed. The transmitter is designed to be active for 48 hours over a wide range of temperatures.

Depending on its location in the aircraft, some ELTs can be activated by the pilot while airborne. In other installations, the ELT is secured elsewhere in the fuselage and cannot be accessed in flight. These are activated only upon impact or by the pilot when on the ground and out of the airplane.

Because of their importance in Search And Rescue (SAR) operations periodic ground checks of an ELT should be made, but only in accordance with the procedures outlined in AIM.

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