General Atomics AeroTec Systems (GA-ATS) is advancing production of the Do228 NXT special mission aircraft in Germany with the integration of a new eco-friendly surface treatment process called Tartaric Sulfuric Acid Anodizing (TSAA). This modern coating replaces the previous Chromic Acid Anodizing and creates a thicker, more durable oxide layer for enhanced corrosion protection and operational reliability, extending the aircraft’s service life and simplifying maintenance while complying with EU environmental regulations. GA-ATS, which shifted most manufacturing operations in-house at its Oberpfaffenhofen site, began final assembly of the first Do228 NXT earlier this year, with series production well underway. Technical upgrades include modern LED cabin lighting, new braking and electric air conditioning systems, and an advanced Attitude and Heading Reference System. The Do228 NXT is valued globally for its versatility across special missions and transport roles, with rugged design and STOL capability suited for challenging environments. In India, Hindustan Aeronautics Limited (HAL) has been deeply involved in the Dornier 228 program, undertaking mid-life upgrades of 25 Dornier 228 aircraft for the Indian armed forces, including advanced avionics and sensors under the Make in India initiative. HAL recently delivered new Dornier Do228 aircraft to the Indian Air Force, reinforcing India’s operational capabilities with modernized variants. However, there is no indication of Indian companies participating in the new Do228 NXT production as of August 2025, with GA-ATS focusing primarily on European supply chains for the NXT generation aircraft. This reflects a continued global partnership matrix around the Dornier 228 platform while GA-ATS drives the next generation’s technical and ecological advancements.