Making Avionics Verification Evidence Audit-Ready
Specialized Engineering Scope & Mission Challenge
An aerospace supplier developing critical Flight Management System (FMS) navigation and guidance software struggled to consolidate fragmented verification artifacts prior to upcoming FAA/EASA Stage of Involvement (SOI#3 and SOI#4) audit gates. Requirements lived in DOORS, simulation runs in custom Python and C++ test harnesses, and structural coverage data across disparate bench test rigs. Senior engineers were spending hundreds of hours manually cross-referencing low-level requirements against automated test cases and MC/DC execution traces to prove bidirectional traceability.
Granular Competency & Technical Requirement Matrix
Critical Engineering & Integration Complexities
- 100% MC/DC (Modified Condition/Decision Coverage) compliance without masking short-circuit logic in safety-critical DAL-A functions.
- Fragmented artifact silos across requirement management systems, Git version control, and bench-level test runners.
- Strict determinism requirements under ARINC 653 time and space partitioning preventing asynchronous test hook insertion.
- Imminent SOI audit deadlines leaving zero margin for ambiguous requirement-to-test mapping escapes.
Engineered Delivery & Execution Workflow
Audit Baseline Deconstruction
Analyzed existing DO-178C lifecycle data and identified structural coverage gaps across low-level requirement-to-test linkages.
Unified Evidence Pipeline
Architected an automated data pipeline linking DOORS requirement IDs with Git commits, test execution scripts, and test results.
Automated MC/DC Execution
Scripted regression execution using LDRA test suites to capture deterministic structural code coverage on target hardware.
ARINC Protocol Intercept
Implemented non-intrusive bus analyzers for ARINC 429 packet validation during real-time partition execution.
Continuous Compliance Gate
Integrated verification checks into GitLab CI, immediately failing any commit that created orphaned code or untested branch conditions.
Automated Evidence Packaging
Deployed an automated evidence packager generating indexed, hyperlinked SOI review dossiers formatted for certification authorities.
Audit Rehearsal & Handover
Conducted dry-run audit interrogations with designated DER (Designated Engineering Representative) mentors to guarantee first-pass clearance.
Production Toolchains, Protocols & Frameworks
06 | PROJECT TARGETS
Project Targets and Business Impact
Customer Confidentiality Note: Customer identity, proprietary codebases, and commercial program specifics have been anonymized in accordance with non-disclosure agreements.