Which of the following is a core safety procedure during maintenance to prevent accidental firing?

• A. PPE requirements alone.
• B. Safing procedures.
• C. No safety measures necessary.
• D. Only safety meters to check.

Answer: (B)

Safing procedures establish a safe state for the weapon before maintenance by isolating energy sources and securing the firing system. They remove power, disconnect or disable firing circuits, and lock devices in a non-firing condition so technicians can work without the risk of an unintended discharge. PPE and meters are important tools, but PPE protects people, not the weapon’s ability to fire, and meters alone only verify status without making the system safe. Leaving no safety measures or relying only on meters does not prevent a discharge. That’s why safing is the essential step to prevent accidental firing during maintenance.