BAE Systems Regional Aircraft, holds EASA Part 21G and 21J Approvals and as a Type Certificate holder, is responsible for the continued airworthiness and in-service support of the Avro RJ/BAe 146, ATP, 748 and Jetstream series of aircraft. The Approvals and Accreditations held by Regional Aircraft have been increased in scope to allow work on other aircraft manufacturer’s types. Regional Aircraft also hold a Design Approval Certificate for Military and Airborne Equipment issued by the Military Aviation Authority (MAA). Additionally Regional Aircraft also hold As9100D approval.
Please see the following link: Standard Response Supplier QA 9 January 2019 for the latest information & copies of approval certificates.