What is the specific purpose of an airplane spanner and how does it contribute to the maintenance and safety of aircraft?

An airplane spanner is a specialized tool used to tighten or loosen nuts and bolts on aircraft components. Its specific purpose is to ensure that all parts of the aircraft are securely fastened, which is crucial for the safety and proper functioning of the aircraft. Regular maintenance using an airplane spanner helps prevent mechanical failures and ensures that the aircraft remains in optimal condition for safe operation.