A350XWB Fuel and Inerting System Installation

Sitec is well known within the aerospace industry for supplying experienced design and stress engineers to support fluid system installations (Fuel, Hydraulic and Pneumatics). Sitec has been responsible for supporting programmes such as A380, A400M, BLADE and A330NEO.

For this reason PFW asked Sitec to provide this expertise to support the A350XWB Fuel and Inerting System Installation work package for both the -900 and -1000 variants.

During the A350 work package, Sitec took the design and stress through pre-defined maturity levels agreeing key system requirements, interfaces and frontiers with surrounding structural partners across transnational sites.

The final design took into account all build requirements from Toulouse, Bremen and Broughton delivering a weight efficient system designed, delivered and installed to extremely tight programme time scales.

Sitec were also responsible for supporting PFW with the specified part and system installation qualification. This included newly designed Composite Pipes and Highly Resistive Fittings (HRF).


Component Drawing Sets • Installation Drawing Sets • V&V Compliance • Stress Justification • Weight Validation


Catia V5 • VPM • PDMLINK • Patran • Nastran

Airbus A350 XWB
Aircraft fuel system connector