The Rockwell Collins Maintenance Diagnostic Computer (MDC) is the central component of an aircraft Maintenance Diagnostic System (MDS). The purpose of the MDC is to aid the aircraft users and maintenance personnel in detecting and troubleshooting avionics components and/or wiring failures. This site contains information on MDC issues and has a repository for current field loadable diagnostic tables.

To register, access the Registrations page of our Customer portal, then locate MDC Account Request, enter your email address and select 'Begin Registration.'