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
D OVERSPEED DRIVE AND OUTLET COVER ASSEMBLY. Mounts at 6-o'clock position on inlet
housing forward of accessory gearbox assembly.