DOC AIRBUS | AMM A320FPYLON-TO-NACELLE JUNCTION - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The pylon-to-nacelle junction is the interface between the forward fairing, the engine nacelle and the pylon box.
** ON A/C NOT FOR ALL The pylon-to-nacelle junction is the interface between the forward fairing, the engine nacelle and the pylon box.
2. Description
The pylon-to-nacelle junction includes:
The pylon-to-nacelle junction includes:
- The fan cowl hinge-fittings
- The thrust-reverser cowl hinge-fittings
- The aprons, the internal lateral panel, the external lateral panel and the junction angles between the Forward Secondary Structure and the Rear Mount Fairing (FSS-RMF junction angles)
- The Rear Mount Fairing (RMF).
A. Fan Cowl Hinge-Fittings:
There are two fan cowl hinge-fittings at RIB02 and RIB04 of the forward secondary structure. They are made of titanium alloy.
There are two fan cowl hinge-fittings at RIB02 and RIB04 of the forward secondary structure. They are made of titanium alloy.
Fan Cowl Hinge-FittingsB. Thrust-Reverser Cowl Hinge-Fittings:
There are two thrust-reverser cowl hinge-fittings at RIB2 and RIB3 of the pylon box. They are made of titanium alloy.
There are two thrust-reverser cowl hinge-fittings at RIB2 and RIB3 of the pylon box. They are made of titanium alloy.
C. Aprons, Internal Lateral Panel, External Lateral Panel and FSS-RMF Junction Angles:
- There are two aprons between RIB00 and RIB04 of the forward secondary structure. They are made of stainless steel.
- The external and internal lateral panels are installed between RIB04 and RIB06 of the forward secondary structure. These panels give an aerodynamic shape between the pylon and the engine nacelle. They are made of titanium alloy.
- There are two FSS-RMF junction angles between RIB05 of the forward secondary structure and RIB4 of the pylon box. They are made of stainless steel.
D. RMF:
The RMF is a structure that you can remove. It makes an aerodynamic joint between the pylon box and the aft pylon fairing.
It has four parts installed between RIB4 and RIB7 of the pylon box:
The RMF is a structure that you can remove. It makes an aerodynamic joint between the pylon box and the aft pylon fairing.
It has four parts installed between RIB4 and RIB7 of the pylon box:
- Two RMF doors:
- One of these RMF doors is installed on the left side
- The other one is installed on the right side.
They give access to the pylon-to-engine aft attachment-fittings at RIB5. - Two RMF assemblies:
- One of these RMF assemblies is installed on the left side
- The other one is installed on the right side.