We are DOA

S4A is the first company in Spain granted as Design Organization by EASA.

EFFICIENCY AND REPONSIVENESS

We produce efficient and on time engineering solutions, adapted to our customer’s needs and expectation.

CORPORATE SOCIAL RESPONSIBILITY

We are commited with our customers, our team and the environment.

MODIFICATIONS

We design and certify minor changes (modifications) and design and get certification by EASA for STC’s.

TESTS

Significant experience producing test plans and procedures and performing such tests.

REPAIRS

We design any repair for any metallic or composite material, related to structural damages, and functional or decorative items.

TURN KEY PROJECTS

We can provide the full process, from design to installation and certification of repairs and modifications, either minor or major ones.

EASA/FAA VALIDATIONS

EASA validations of modifications approved by the FAA and FAA validations of EASA approved STC’s.

CONSULTING

External consulting, time limited or permanent, by our aerospace team of experts.

Certifications;Quality approvals;Certified security;Certifications

Long run engineering

Magnitudes beyond numbers
Projects
Clients
Countries

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Capabilities