What does the IGN SEL annunciator indicate?

• A. Ignition off
• B. Ignition on
• C. Fuel valve closed
• D. Power to engine lost

Answer: (B)

The IGN SEL annunciator indicates that the ignition system is active (ignition on). This annunciator is an important component in the operational status of the aircraft, as it signals that the ignition system is engaged, which is necessary for the engine to start and run properly. When the IGN SEL is illuminated, it reassures the pilot that the engine is receiving the appropriate ignition signals, ensuring reliable performance during critical phases of flight, such as takeoff and landing.

Proper recognition and understanding of this annunciator's function can prevent misunderstandings about engine readiness and operational safety, which could lead to serious errors during flight operations. Knowledge of this indicator is essential for maintaining workflow and ensuring that all systems are functioning as intended.