Please fill out the form below for Sem L1 Ilt Avionics Fds 2000 Cou and get a quote for part number 523-0789088 by Collins Avionics Service Centre, please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number 523-0789088. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.