The fuel pump is mounted in relation to the Accessory Drive Housing (ADH) on which side?

The fuel pump is mounted in relation to the Accessory Drive Housing (ADH) on which side?

• A. Aft-left of the Accessory Drive Housing
• B. Fore-right of the Accessory Drive Housing
• C. Above the Accessory Drive Housing
• D. Aft-right of the Accessory Drive Housing

Answer: (D)

The layout is determined by how the accessory drive gear train feeds the various driven components. The fuel pump is placed on the aft-right side of the Accessory Drive Housing so its shaft aligns with the drive path from the ADH, giving a straight, proper belt/shaft engagement and leaving enough room for mounting, fasteners, and fuel lines. This location avoids awkward belt angles or clearance issues that would come from placing the pump fore or on the opposite side. It also keeps the pump out of interference with other accessories and the engine structure, helping maintain reliable drive and fuel delivery.

The layout is determined by how the accessory drive gear train feeds the various driven components. The fuel pump is placed on the aft-right side of the Accessory Drive Housing so its shaft aligns with the drive path from the ADH, giving a straight, proper belt/shaft engagement and leaving enough room for mounting, fasteners, and fuel lines.

This location avoids awkward belt angles or clearance issues that would come from placing the pump fore or on the opposite side. It also keeps the pump out of interference with other accessories and the engine structure, helping maintain reliable drive and fuel delivery.