Manufacturing Support

Concessions

Strand has covered concessions on all wing box & fixed TE (FTE) & LE (FLE) structure on the A340 (Entry Into Service), A330 and A320 family of aircraft, from its offices in Malvern. Some of these concessions activities have included:

Evaluation of fastener non-conformances for development of rules to support improved disposition of minor deviation, SRM concessions and repairs for AUK Broughton. Analysis covered A330/A340 widebody aircraft for a variety of wing structural non-conformances. Wing analysis covered Spar flanges, Rib feet and skins / covers for fastener oversize, reduction of fasteners spacing and loss of edge distance conditions.

In developing the minor deviation rules tools for Auk Broughton, the calculation of fastener strength allowable, parametric lug analysis and edge distance evaluation were automated using Microsoft excel and VBA code.

Strand is also currently supporting A330/340 Main Landing Gear (MLG) production concessions onsite at MD-L.

A318/A319/A320/A321 Manufacturing Support

Various projects were done for single aisle manufacturing support. These are:

1. Static and fatigue analyses was done on A320 Family spar flanges and butt strap joints for the use of oversize fasteners. The work involved methods and tool development for Concessions.

2. Evaluation of fastener non-conformances for development of rules to support improved disposition of minor deviation and SRM concessions and repairs for AUK Broughton. Analysis covered all current single aisle derivatives including A318, A319, A320 and A321 for a variety of wing structural non-conformances. Wing analysis covered Spar flanges, Rib feet and skins / covers for fastener oversize, reduction of fasteners spacing and loss of edge distance conditions.

3. In developing the minor deviation rules tools for Auk Broughton, the calculation of fastener strength allowable, parametric lug analysis and edge distance evaluation were automated using Microsoft excel and VBA code.