APR high standards are our main priority. Every part we own must pass our QC approval prior selling. We make sure all parts carry all necessary documents prior shipping. Therefore, our standards are above and beyond. Our Quality Management System includes regular training to ensure that our Products and Quality Procedures meet and exceed Industry Standards. Our system has withstood many in-house audits from Airlines, accreditation companies, and maintenance facilities, and meets or exceeds the standards called out for ASA-100, CASE-3A, and ISO audit criteria