What is a good practice concerning the inspection of heating and exhaust systems surrounded by engine exhaust jackets?

Supplementing inspections with carbon monoxide tests is a good practice because engine exhaust systems can leak hazardous gases, such as carbon monoxide, which pose significant safety risks to both crew and passengers. Regular inspections alone, whether they are visual or frequency checks, may not detect small leaks or failures that can lead to serious health issues over time. Carbon monoxide is odorless and colorless, making it particularly dangerous, as individuals may be exposed without any immediate warning signs. Implementing carbon monoxide testing ensures that the presence of this dangerous gas is monitored, adding an essential layer of safety to the overall inspection process of heating and exhaust systems. This approach is vital for maintaining a safe cabin environment, especially in aircraft where the risk of gas exposure in an enclosed space is heightened.