Which condition constitutes a Class F mishap?

Which condition constitutes a Class F mishap?

• A. FOD causing turbine damage
• B. Bird strike causing engine damage
• C. Structural failure
• D. Fire in the cockpit

Answer: (A)

Class F mishaps focus on damage caused by foreign object debris harming critical engine components, especially the turbine. When a stray object is ingested or struck the engine and leads to turbine damage, it directly fits this category because the incident stems from FOD and targets essential propulsion hardware. That makes the scenario describing FOD causing turbine damage the most representative example of Class F. The other scenarios involve different mishap paths—structural failure relates to the airframe integrity, and a cockpit fire is a fire/injury-related event—so they don’t exemplify Class F. A bird strike is a form of FOD, but the clear, direct tie to turbine damage best aligns with the Class F definition used here.

Class F mishaps focus on damage caused by foreign object debris harming critical engine components, especially the turbine. When a stray object is ingested or struck the engine and leads to turbine damage, it directly fits this category because the incident stems from FOD and targets essential propulsion hardware. That makes the scenario describing FOD causing turbine damage the most representative example of Class F. The other scenarios involve different mishap paths—structural failure relates to the airframe integrity, and a cockpit fire is a fire/injury-related event—so they don’t exemplify Class F. A bird strike is a form of FOD, but the clear, direct tie to turbine damage best aligns with the Class F definition used here.