Build to Spec
A3i Systems offers a unique Build-to-Spec capability, distinguishing us as a product development and engineering services company where our services are an integral part of our product development process. This end-to-end solution means we take a project from initial concept and design all the way through to certification and manufacturing.
Proven Track Record
Our team leverages over 20 years of experience in aerospace product development and certification to deliver full and partial lifecycle certification services to global customers. We have a proven track record of designing, developing, and certifying aerospace products that are currently flying in thousands of aircraft worldwide.
                        The Build-to-Spec Lifecycle and Deliverables
Our Build-to-Spec capability follows a methodical, full-lifecycle process for both hardware and software, ensuring every deliverable is meticulously crafted for certification.
Hardware (DO-254) Deliverables
Planning Documents:
- • Equipment Development Plan (EDP)
 - • Plan for Hardware Aspects of Certification (PHAC)
 - • Hardware Design Plan (HDP), Validation Plan, and Verification Plan
 - • Equipment Certification Support Plan
 
Design & Implementation Artifacts:
- • Equipment Description Documents
 - • 3D models and 2D drawings
 - • Hardware Interface Documents (Electrical, Mechanical, Functional)
 - • Final Part Numbers and Bill of Material (BOM)
 
Verification & Validation Artifacts:
- • Qualification Test Plan and Procedures
 - • Qualification Test Results and Reports (EMI, HIRF)
 - • Hardware Verification Results (Initial and Final)
 - • Hardware Requirements Traceability Data
 
Safety & Certification Artifacts:
- • Preliminary and Final Safety Assessments
 - • FMECA (Failure Mode, Effects, and Criticality Analysis)
 - • Hardware Accomplishment Summary (HAS)
 - • Declaration of Design and Performance (DDP)
 - • Final Hardware Certification Data Package
 
Software (DO-178C) Deliverables
Planning Documents:
- • Software Life Cycle Environment Plan (SLE)
 - • Software Development Plan (SDP)
 - • Software Quality Assurance Plan (SQAP)
 - • Software Configuration Management Plan (SCMP)
 - • Software Verification and Validation Plan (SVVP)
 - • Software Certification Plan (SCP)
 
Design & Implementation Artifacts:
- • Software Requirements Specification (SRS)
 - • High-Level Software Requirements (HLR) and Low-Level Software Requirements (LLR)
 - • Source Code and Object Code
 - • Software Design Documents (SDD)
 
Verification & Validation Artifacts:
- • Software Verification Cases and Procedures (SVCP)
 - • Software Verification Results (SVR)
 - • Structural Coverage Analysis Reports (e.g., MCDC)
 - • Software Requirements and Code Traceability
 
Safety & Certification Artifacts:
- • Software Accomplishment Summary (SAS)
 - • Final Software Certification Data Package
 
Project Examples: Certified Products by the Team
Our Build-to-Spec capability is best demonstrated through our team's successful track record of developing and certifying real-world avionics products.
FAA-Certified GPS Receiver (TSO C145x Beta 3 GNSS Receiver)
Description: The team was responsible for the full-lifecycle product development, from design to FAA certification and manufacturing. Over 10,000 units of this product have been delivered.
Implementation: The project involved full-lifecycle product development, including Single Board Computer, RF/Analog hardware (1575 MHz), Digital hardware (DSP Processor, Xilinx FPGA), and Power Supply components. The software contained 60K SLOC, and the FPGA program had 7K SLOC.
Standards:
FAA-Certified ADS-B Transponder
Description: This was a Build-to-Spec effort to design, develop, and FAA-certify an ADS-B transponder to detect air traffic up to 300 KM.
Implementation: The team handled full-lifecycle product development, including Single Board Computer, RF/Analog hardware (978 MHz, 1090 MHz, 45W PA), Digital hardware (ARM 9 Processor, Xilinx FPGA), and a Power Supply with hold-up and EMI/EMC circuits. The software was 100K SLOC, and the FPGA program was 12K SLOC.
Standards:
FAA-Certified ARINC 429 Router/Filter (BA-440, BA-540)
Description: The team designed, developed, and certified an ARINC 429 router that acts as an interface between avionics systems with incompatible interfaces. The unit is used in retrofit solutions on some Boeing platforms.
Implementation: The design was based on the Single Board Computer LPC3250 Processor (32-bit, ARM 7 Core, 266 MHz).
Standards:
Certified by the FAA and qualified to meet DO-160G standards.
Comprehensive Certification Data Package
We provide a comprehensive set of artifacts required for certification with major regulatory bodies
FAA
Federal Aviation Administration certification support and documentation
EASA
European Aviation Safety Agency certification and compliance documentation
CEMILAC
Centre for Military Airworthiness & Certification (Indian) support
Ready for Full Product Development?
From concept to certification, our Build-to-Spec capability delivers complete aerospace products with proven success in the market.