The customized service bulletin is one of the specialized services within COMAC's engineering technical service system. Leveraging COMAC's professional engineering capabilities, this service provides customized aircraft modification solutions to customers.

The service is provided based on the customer's request through their account manager, with COMAC delivering the corresponding service.

The service content includes providing approved service bulletins.

The goal of the service is to offer customized aircraft modification solutions that meet the customer's needs.

Customers benefit by receiving approved modification solutions tailored to their specific requirements.