Which of the following runway incursion outcomes is possible?

• A. It has no safety implications.
• B. It may lead to disciplinary action but not investigations.
• C. It always cancels all operations for the day.
• D. Aircraft collision risk, injury or damage, investigations, and possible disciplinary action.

Answer: (D)

Runway incursions are serious safety events that can create a real risk of collision and may result in injury or damage to aircraft or equipment. Because safety is the top priority, any incident triggers an investigation to determine what happened and what controls or procedures failed. Depending on what the investigation finds, disciplinary action may be taken for violations of clearance or ground procedures. All of these consequences—collision risk, potential injury or damage, investigations, and possible disciplinary action—can occur, which makes that option the best description of possible outcomes. The other statements overlook safety implications, the likelihood of investigations, or the fact that operations aren’t automatically halted for the entire day.