When may a PIC deny access to the flight deck?

• A. Only during security incidents
• B. Never
• C. Whenever necessary for safety of flight.
• D. When passengers complain

Answer: (C)

The key idea is that the Pilot in Command has the authority to control access to the flight deck to protect the safety and security of the flight. Access may be denied whenever it’s necessary for safety of flight, which covers preventing interference, protecting crew from distraction, and addressing security or other safety threats. This means the PIC can deny entry if someone is not cleared, if there’s a risk they could disrupt operations, or if a security concern arises, at any point during the flight.

This isn’t limited to just security incidents, and it isn’t something based on passenger complaints. It reflects the captain’s responsibility to maintain a safe and secure cockpit environment. For example, an unauthorized person attempting to enter during critical phases of flight, or someone who appears intoxicated or ill, could be denied access to protect everyone on board.