Certified Design, Production and Integration for Helicopter Operators
Helicopter operators require EASA-approved partners to implement aircraft modifications, retrofits and upgrades without disrupting operations or compromising airworthiness.
SPAES supports helicopter operators as an EASA Part 21J Design Organisation and Part 21G Production Organisation, providing certified engineering, manufacturing and modification support from concept to approval.
We specialise in helicopter modification programmes for air rescue, special mission and commercial operations across Europe and beyond.
EASA-Approved Modification and Retrofit Support
SPAES provides structured, certification-driven support for helicopter operators, including:
- EASA-approved helicopter modifications under Part 21J
- Retrofit programmes for mission and operational upgrades
- Avionics upgrades for legacy helicopter platforms
- Integration of special mission and medical equipment
- Structural and system modifications
- Support for Minor and Major Changes, including STCs
All modifications are engineered and approved in compliance with EASA regulations and operational requirements.
Typical Operator Use Cases
SPAES supports helicopter operators in modification scenarios such as:
- Fleet upgrades for air rescue and emergency medical services
- Retrofit of mission equipment and operational systems
- Avionics modernisation for ageing helicopter fleets
- Compliance-driven modifications (e.g. Part-26 related changes)
- Aircraft refurbishment and reconfiguration projects
- Entry-into-service support after modification
Our solutions are designed to integrate smoothly into operator workflows and maintenance planning.
Why Helicopter Operators Work with SPAES
- EASA Part 21J and Part 21G approvals under one organisation
- Certified engineering, manufacturing and integration capabilities
- Proven experience across multiple helicopter platforms
- Direct technical interface – no resellers or abstract consulting
- Solutions tailored to operational and mission requirements
- Reliable certification outcomes with predictable timelines
SPAES acts as a long-term technical partner for helicopter operators seeking compliant and practical modification solutions.
Proven Experience on Helicopter Platforms
SPAES has delivered certified modification and retrofit projects on a wide range of helicopter types, including:
- EC135, EC145 and EC155
- BO-105
- Multi-type helicopter fleets in air rescue and special mission operations
Our project experience ensures realistic engineering solutions and authority-accepted certification results.
Your EASA-Approved Partner for Helicopter Modifications
If you are a helicopter operator looking for an EASA-approved design and production organisation to support your modification or retrofit programme, SPAES provides certified engineering, manufacturing and certification expertise.
Contact us to discuss your helicopter modification requirements and operational objectives.
