Part 3 of 8: Cessna Annual 172P - Emergency Locator Transmitter Service

I watched the service of the Emergency Locator Transmitter (ELT). I learned that the batteries are replaced after 1 hour of cumulative use or after 50% of their service life is expired. The ELT is designed to activate and transmit a signal after being subject to forces generated in a crash. I understand that the ELT is in different locations in different airplanes.

Next up: battery service