ATA 83 covers which component group?

ATA 83 covers which component group?

• A. Propulsion Augmentation
• B. Oil
• C. Accessory Gearboxes
• D. Engines Indicating

Answer: (C)

In ATA manuals, each chapter number labels a specific component group, so the number 83 is the chapter that defines the Accessory Gearboxes. This group covers the gearbox assemblies mounted on the engine that drive and power engine accessories—things like the oil pump drive, fuel pump drive, hydraulic pump drive, starter, generator, and sometimes the constant-speed drive. That’s why this option is the best match: it names the exact component family that ATA 83 is dedicated to. The other options don’t fit because they point to different engine subsystems that are covered under different ATA chapters—for example, topics related to propulsion augmentation, the lubrication/oil system as a whole, or engine-indicating/instrumentation. Each of those belongs to a different ATA chapter, not the Accessory Gearboxes chapter.

In ATA manuals, each chapter number labels a specific component group, so the number 83 is the chapter that defines the Accessory Gearboxes. This group covers the gearbox assemblies mounted on the engine that drive and power engine accessories—things like the oil pump drive, fuel pump drive, hydraulic pump drive, starter, generator, and sometimes the constant-speed drive. That’s why this option is the best match: it names the exact component family that ATA 83 is dedicated to.

The other options don’t fit because they point to different engine subsystems that are covered under different ATA chapters—for example, topics related to propulsion augmentation, the lubrication/oil system as a whole, or engine-indicating/instrumentation. Each of those belongs to a different ATA chapter, not the Accessory Gearboxes chapter.