How Will They Know?
Many years ago, I happened to overhear one pilot ask another, How did they find out? The question revolved around a situation resulting from an error in judgment concerning operation of an unairworthy (out-of-annual-inspection) aircraft. While there was no accident, a somewhat unusual event occurred that was traced to a mouse nest in the carburetor heater duct, which caused a rough-running engine. After a precautionary landing, mechanics discovered the problem and thought it was hilarious.