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New DHL Livery with TUSK foundation

Following on from previous Livery installations with worldwide logistics company DHL (www.dhl.com), STC Twenty One is undertaking the design and certification for the installation of new Decals to show DHL…
STC Twenty One
June 30, 2021
News

What is ADS-B Out?

About our AML STC ADS-B Out – Automatic Dependant Surveillance-Broadcast Mandate due date: 7th June 2020 (Europe, EASA) 1st January 2020 (USA, FAA) What is ADS-B? ADS-B is a broadcasting…
STC Twenty One
September 5, 2019

UK CAA Approved Design Organisation

STC Twenty One

All aircraft modifications and aircraft repairs are managed by our UK CAA approved Design Office represented by STC Twenty One (UK.21J.0198).

What We Offer

Services

STC Twenty One Limited holds a Part 21 Subpart J DOA enabling it to certify EASA and UK CAA approved STCs and Major Repairs. Additionally, where a design change or repair is classified as minor, STC Twenty One Limited is authorised to approve them under the DOA using approval reference EASA.21J.198 and UK.21J.0198.

Our employees are spread across our Avionics, Mechanical, Quality and Commercial Teams with a high level of experience and certification enabling the company to perform specialised services on engines and aircraft. Read more about our Services.

Get in Touch

Contact Us

Need more information or want to arrange to meet us?

+44 1332 576830

info@stc21.co.uk

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