How often is non-destructive testing performed on fire apparatus?

Non-destructive testing (NDT) is a crucial maintenance procedure for fire apparatus, ensuring that the integrity and safety of the equipment are maintained without causing damage. Performing NDT every five years is a standard practice because it balances the need for thorough inspection with the practical considerations of usage and wear on the equipment.

This five-year interval allows for sufficient time to assess the condition of the apparatus and identify any potential weaknesses or issues that could compromise safety and performance. It aligns with the regular overhauls and other maintenance checks that fire equipment typically undergo, helping to ensure that any defects are caught early before they can lead to significant problems.

Choosing a shorter duration, such as yearly checks, could potentially lead to unnecessary costs and service interruptions, while extending the interval further, such as to ten years, might result in oversight of critical issues, increasing the risk in emergency situations. Thus, the five-year timeframe strikes a balance between thorough inspection and practicality, making it the correct choice for the frequency of non-destructive testing on fire apparatus.