Replace ELT Batteries Flashcards
On what two frequencies does the ELT operate?
121.5 and 243.0 megahertz
Where is the ELT transmitter normally located on an aircraft?
In the tail of the aircraft or as far aft as possible
How often should ELT batteries be replaced or recharged?
When the transmitter has been in use for more than 1 hour, or when 50% of their useful life or charge has expired
How can you know when an ELT battery must be replaced or recharged?
By the date marked on the outside of the transmitter
How often must ELTs be inspected for proper installation, battery corrosion, operation of the controls and sensor, and the presence of the radiated signal?
Every 12 calendar months
What causes an ELT to actuare?
An inertia switch that detects an impact parallel to the longitudinal axis of the aircraft as would occur in a crash
