Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task I. Communication and Navigation Systems

AM.II.I.K7

Knowledge

Emergency locator transmitter (ELT).

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 11-63
Chapter 11: Communication & Navigation › Radio Navigation › Emergency Locator Transmitter (ELT)
Emergency Locator Transmitter (ELT) An emergency locator transmitter (ELT) is an independent battery powered transmitter activated by the excessive G-forces experienced during a crash. It transmits a digital signal every 50 seconds on a frequency ... search and rescue operations are notified through mission control centers (MCCs) set up for this purpose. Note: Maritime vessel emergency locating beacons (EPIRBs) and personal locator beacons (PLBs) use the exact same system. The United States portion of the Cospas…
Aeronautical Information Manual p. 6-2-2
Chapter 6. Emergency Procedures › Section 2. Emergency Services Available to Pilots › 6-2-4. Emergency Locator Transmitter (ELT)
Emergency Locator Transmitter (ELT) a. General. 1. ELTs are required for most General Aviation airplanes. 2. ELTs of various types were developed as a means of locating downed aircraft. These electronic, battery operated transmitters operate on one of three frequencies…
Aviation Maintenance Technician Handbook - Airframe p. 11-66
Chapter 11: Communication & Navigation › Emergency Locator Transmitter (ELT) › Testing Considerations for 406 MHz ELTs
from the ELT antenna. Test in each mode and frequency the ELT unit transmits. Figure 11-149. An emergency locator transmitter (ELT) mounting location is generally far aft in a fixed-wing aircraft fuselage in line with the longitudinal axis…