With over 900 Citation XL aircraft being produced the past 20 years, parts availability and cost of parts are important things to consider for operators.  Penn Aerospace Solutions has been able to support numerous operators with better value and in stock parts available for immediate delivery.  Whether you need an entire aircraft wing or an interior light bulb, PAS has been able to support.  Many of the parts are available on exchange to help reduce costs.  

PAS can support many aircraft in the general aviation marketspace, the Citation XL being one of their specialties.