| STC Twenty One Limited is an EASA approved Design Organisation located in the East Midlands.
STC Twenty One Limited provides EASA approved major (Supplemental Type Certificate) and minor changes/repairs for a wide variation of aeroplane and rotorcraft types.
The scope of approval held by STC Twenty One Limited permits design changes for the following: -
 |
Avionic Systems |
|
Electrical Systems |
|
Radio & Navigation Systems |
|
Hydro Mechanical Systems |
|
Structures |
|
Repairs |
For further details see our approvals and design services section.
Address: The Waldorf Centre, 1290 London Road, Alvaston, Derby DE24 8QP .
Tel: +44 (0) 1332 576 830 Fax: +44 (0) 1332 576 831
EASA DOA Approval Number EASA.21J.198 |
|