How many safety lockout pins are used for the aircraft?

The correct choice indicates that there are a total of nine safety lockout pins used in the aircraft. Safety lockout pins are critical components in ensuring the safety and security of aircraft systems during maintenance and operational checks. They are designed to prevent accidental operation of systems, providing an additional layer of safety to protect maintenance personnel and equipment.

In the context of aircraft maintenance, knowing the number of lockout pins and their function is crucial. Each pin plays a role in ensuring different controls and systems are disabled when being serviced or inspected. This knowledge also helps prevent maintenance errors that could lead to dangerous situations if systems were to engage unexpectedly.

Familiarity with such specifications, including the total number of lockout pins required, is vital for anyone involved in aircraft operations or maintenance. Understanding the correct number reinforces the importance of using all necessary safety measures to maintain a safe working environment.