FORWARD FAIRING - DESCRIPTION AND OPERATION

** ON A/C NOT FOR ALL

1. General
The forward fairing is the secondary structure of the pylon. It makes an aerodynamic joint between the pylon and the engine nacelle.
It contains ducts and components related to the aircraft systems.

** ON A/C NOT FOR ALL

2. Description

Forward Fairing ** ON A/C NOT FOR ALL

A. Forward Fairing

(1) There are eleven access skin panels for the access to:

The electrical cables
The fuel and hydraulic pipes
The pneumatic duct
The precooler.

The blow panel, the exchanger panel and the aft lateral panel are made of titanium alloy. All the other panels are made of composite material.
All the access skin panels are attached with screws.

(2) The primary structural components of the forward fairing are:

7 ribs. RIB00, RIB01, RIB02 and RIB03 are made of stainless steel. The other ribs are made of titanium alloy.
4 webs for the separation. These webs are made of titanium alloy.
1 visor assembly that is installed on the forward end of the structure.

(3) Two fan-cowl hinge fittings are installed at RIB01 and RIB03. They are made of titanium alloy.

(4) The forward fairing is attached to the pylon box with two forward secondary structure-rods. One end of these rods is installed on the pyramid assembly of the pylon box. The other end is installed at RIB05 on the forward fairing. The bodies of the rods are made of steel.

[Rev.10 from 2021] 2026.04.01 02:01:42 UTC