Rooted in Middle River since Glenn L. Martin opened the Baltimore-area aircraft plant in 1929, Middle River Aerostructure Systems (MRAS) designs and manufactures complex aerostructures, including nacelle systems and specialized airframe components. Its 2-million-square-foot Chesapeake Bay facility carries more than 95 years of civil and military aircraft heritage and now supports aerospace customers from design and production through product service. MRAS, part of ST Engineering since 2019, also operates an FAA/EASA Part 145 repair station for nacelle maintenance, repair and overhaul.
AS 9100 Rev. D
AS9110C
ISO 14001
FAA 145
EASA 145-6726
NADCAP NDT
NADCAP Composite
M1200 Approved Processor List
Compliance program
FAAPART145
Quality certification
EASAPART145
Quality certification