Which ATA chapter number corresponds to Ignition?

Which ATA chapter number corresponds to Ignition?

• A. ATA 70
• B. ATA 73
• C. ATA 76
• D. ATA 74

Answer: (D)

In the ATA system, each chapter number groups all maintenance data for a specific aircraft system. Ignition refers to the system that provides the spark to start and run the engine, including components like ignition sources, wiring, and related control parts. In the standard ATA chapter mapping, ignition is documented under chapter 74. That makes chapter 74 the correct match for ignition because it consolidates all ignition-related procedures, diagrams, and parts in one place for easy reference. The other chapter numbers point to different subsystems, so they don’t represent ignition.

In the ATA system, each chapter number groups all maintenance data for a specific aircraft system. Ignition refers to the system that provides the spark to start and run the engine, including components like ignition sources, wiring, and related control parts. In the standard ATA chapter mapping, ignition is documented under chapter 74. That makes chapter 74 the correct match for ignition because it consolidates all ignition-related procedures, diagrams, and parts in one place for easy reference.

The other chapter numbers point to different subsystems, so they don’t represent ignition.