Services for Commercial Aircraft
Comprehensive solutions tailored for the world of commercial aviation
SERVICES
Certified Engineering
Advanced engineering solutions that ensure compliance, safety, and innovation for commercial aircraft.
Component sales
Aviation components designed for durability, efficiency and performance.
Consulting
Gain the competitive edge with our specialized consultancy in avionics integration, cabin interior changes and structural changes.
Project Management
Seamless execution from inception to delivery, ensuring timely and efficient completion of aviation projects.
Modifications/STC’s Sales:
Offering a vast portfolio of EASA STC’s, vital for aircraft upgrades, and over 3000 minor modifications to match aircraft operators’ need.
Efficient technical solutions
Commitment with people
Quality, Safety and Environment
Most relevant STC’s
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Iridium antenna installationrev 1: maintenance interval inspections update
EASA STC no. 10078055
Passenger Seats RearrangementAircraft with initial LOPA (37Y) changed due to new seats part numbers.
EASA STC no. 10079033
Installation of integrated communication unit honeywell rcz-833k & pcpower system
EASA STC no. 10077485
Cabin ModificationLateral (FWD) stowage replacement and installation of new ones
EASA STC no. 10079613
Seat Track and Floor Panels Installation in A330Seat tracksand floor panels will be installed on passenger cabin
EASA STC no. 10067355
Passenger Seats RearrangementPassenger seats rearrangement in the AFT cabin.
EASA STC no. 10077945
Iridium antenna installationrev 1: maintenance interval inspections update
EASA STC nº. 10078055
Passenger Seats RearrangementAircraft with initial LOPA (37Y) changed due to new seats part numbers.
EASA STC nº. 10079033
Installation of integrated communication unit honeywell rcz-833k & pcpower system
EASA STC nº. 10077485
Comprehensive solutions from design, installation, to global certification of aircraft repairs and modifications
Cabin Interiors
S4A specializes in arranging any required cabin interiors, blending cutting-edge technology with timeless elegance. From plush seating arrangements to state-of-the-art entertainment systems, we redefine air travel comfort. Elevate your journey with S4A, where every detail is tailored to perfection.
Structural changes and Structural repairs
S4A is your premier destination for aircraft modification and repair services, ensuring your fleet operates at peak performance. With expert design and certification process and meticulous attention to detail, we enhance safety and efficiency with every modification. Trust S4A to elevate your aircraft’s capabilities and reliability, keeping you soaring above the rest.
Avionics modifications
S4A performs any kind of avionics change for commercial aircraft, from a single item replacement to full avionics upgrades.
Environmental control systems
S4A perform modifications for Air conditioning systems, Oxygen systems and water and waste systems.
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Years of Industry Excellence
S4A has been providing modifications for commercial aircraft for the last 17 years. From cabin interior modifications to avionics changes, S4A provides you with any certified design change covering your needs.
Years in Business
Explore our catalogue of STC’s, Supplementary Type Certificates that transform your needs into certified solutions:
Most demanded commercial STC’s and minor modifications
Most demanded minor mods:
Seat cover replacement. Aircraft model: A330
Bilingual placards (several languages such as English/Arabic; English/Chinese; etc). Aircraft model: A330
Crew rest area (Class 2). Aircraft model: A330
Most demanded STC’s:
FliteByte WiFi system. Aircraft model: A320 family. EASA STC # 10070031
Aviator 700S SATCOM installation. Aircraft model: A320.
EASA STC # in progress
ADS-B out installation. Aircraft model: DO-228. EASA STC # 10080708
More than 380 customers trust us.
Latest Insights on Commercial Aviation
More Airlines Reviewing Safety Protocols After SQ321 Incident
The number of turbulence incidents reported by airlines has increased, although severe turbulence remains rare, the International Air Transport Association said at its annual meeting on June 3. By The Straits Times, Singapore / Asia News Network Source (TNS)
Diehl flags future role of new materials and AI in aircraft cabins
While Diehl Aviation was at AIX highlighting the potential for artificial intelligence and recycled materials to bring further innovation to future aircraft cabins, the company’s senior vice-president product innovation Carsten Laufs flags many of the gains are...
Improved Radome Designs Target Optimized Performance
Lufthansa Technik is using what it says is the world’s first automated adaptive robot system that can be applied to a multitude of MRO processes for composite aircraft parts, including radome repairs. Credit: Lufthansa Technik
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