Certified Flight Instructor (CFI) Practice Exam

What is the duration of validity for inspections of the emergency locator transmitter (ELT)?

1. 24 calendar months

2. 12 calendar months

3. 30 days

4. Every flight

The correct answer is: 12 calendar months

The emergency locator transmitter (ELT) is a crucial safety device designed to aid in search and rescue operations in the event of a mishap. To ensure that it operates effectively when needed, there are specific regulations regarding its inspection. The correct duration of validity for inspections of the ELT is 12 calendar months. This periodic inspection requirement is specified to ensure that the ELT is functioning properly, its battery is operational, and that it meets the regulatory standards. This routine check helps guarantee the reliability of the device in emergencies, as a non-functioning ELT could impair search and rescue efforts significantly. The other durations mentioned do not align with the regulatory requirements. A 24-month inspection period would be too long and could risk the ELT being inoperative when needed. A 30-day interval would be excessively frequent, adding unnecessary burden and cost without providing additional safety. Requiring inspections every flight is impractical, as it would place an unreasonable demand on pilots and operators without significantly enhancing safety. Thus, the 12-month inspection timeline effectively balances operational readiness and regulatory compliance for ELTs.