ACCESSORY GEAR SECTION

1-17 ACCESSORY GEAR SECTION

A. Provides gear train that connects starter to compressor rotor assembIy and compressor rotor

assembly to N1 driven accessories (accessories driven by gas producer system). Also provides gear train

between output shaft and N2 driven accessories (accessories driven by power turbine system).

A STARTER DRIVE ASSEMBLY. Mounts at 12-o'clock position on inlet housing. Starter mounts

on starter drive assembly.

B ACCESSORY G EAR ASSEMBLY. Mounts in inlet housing directly between the starter drive

assembly and the accessory gearbox assembIy.

C ACCESSORY GEARBOX ASSEMBLY. Mounts at 6-o'clock position on inlet housing. Contains

drive gears and provides mounting pads for fuel boost pump, main oil pump, and

fuel control.

D OVERSPEED DRIVE AND OUTLET COVER ASSEMBLY. Mounts at 6-o'clock position on inlet

housing forward of accessory gearbox assembly.

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