Boeing 777 GENERAL FAMILIARIZATION

Boeing 777 with GE90 and PW4000 Powerplants
This post is for general familiarization about the Boeing 777.





ENGINE INTRODUCTION

This chapter gives general information about the modules and internal components of the GE90-90B engine.

The bypass ratio of the mass of air going throug the fan duct to the mass of air going throug the engine core.
The engine weight includes the engine bulid up (EBU) equipment that boeing installs. The engine driven hydraulyc pump (EDP), the integrated drive generator (IDG), and the inlet cowl are examples of EBU equipment.

Data Plate

The engine data plate is on the aft face of the fan hub frame at the 9:00 position. It is below the configuration box.
The data plate shows this information about the engine.

> Type certificate number
> Model number
> Serial Number
> Engine configuration
> Take off (TO) thrust
> Maximum continuous thrust
> Service bulletin number that sets angine configuration
> Date of manufacture
> Emissions compliance
> Manufacturing Location