Aerospace systems don’t get a second chance to fail gracefully. A component that performs flawlessly on a lab bench has to prove itself again at altitude, under vibration, through hundreds of temperature cycles, and across a service life that can span decades. That’s the standard aerospace reliability engineering has to meet, and it’s the standard Relteck builds every engagement around.
Relteck provides aerospace reliability engineering services for OEMs, tier suppliers, and program teams who need more than a passing test result — they need reliability data that holds up through certification review, customer audits, and years of field service. From MTBF prediction to full lifecycle reliability planning, our team helps aerospace clients engineer reliability in from the earliest design stages rather than discovering problems after hardware is built.
Why Aerospace Reliability Is a Different Discipline
Consumer electronics fail; aerospace hardware isn’t allowed to. The margin for error in avionics, propulsion systems, structural components, and onboard electronics is measured in mission-critical terms, and every failure mode has to be understood, quantified, and designed against before a program ever reaches flight test. Aerospace reliability engineering also has to satisfy multiple audiences at once: the design engineers who need failure data to make trade-offs, the quality organization that needs traceable documentation, and the certification authorities who need proof that reliability requirements were met, not just claimed.
Relteck approaches aerospace programs with that multi-audience reality in mind, delivering reliability analysis and testing that’s technically rigorous and audit-ready at the same time.
Aerospace-Specific Reliability Standards
Aerospace reliability work draws from a distinct set of standards and methodologies, and Relteck’s engineers build client programs around the ones most relevant to their platform and customer base, including:
- MTBF prediction methodologieswidely used across avionics and electronics programs to estimate failure rates and support design trade-off decisions
- MIL-HDBK-217 and Telcordia/Bellcore-based prediction models, often referenced on aerospace electronics where a recognized prediction standard is required by a customer or certification body
- Environmental test standardscovering the shock, vibration, and thermal profiles unique to airborne and space-bound hardware
- Quality and process standards, including AS9100, that govern how an aerospace supplier’s engineering and quality processes must be structured and documented
We help clients determine which standards their program actually needs to satisfy — since over-testing wastes budget and under-testing risks a failed certification review — and then build a reliability plan around that scope.
Engineering for Environmental Extremes
Aerospace hardware faces a combination of environmental stresses that few other industries have to design around simultaneously:
- Altitude and pressure variation, which affects everything from outgassing behavior to component cooling and electrical arcing risk
- Vibration and shock, from engine-induced vibration to landing loads and, for some platforms, launch and re-entry conditions
- Temperature cycling, often across extreme ranges within a single flight profile, which drives fatigue in solder joints, connectors, and structural interfaces
Relteck’s reliability testing services are built to characterize how hardware behaves under these conditions, using accelerated life testing and stress screening approaches that surface failure modes before they show up in the field. Rather than simply confirming a part survives a single environmental profile, we help clients understand where the design margin actually sits, so engineering teams know how much headroom they have before a redesign is required.
Certification-Aligned Reliability Work
Aerospace certification frameworks put pressure on reliability data in ways that other industries don’t experience. Programs referencing DO-178C for software-driven systems, or operating under an AS9100-certified quality system, need reliability engineering that produces documentation those frameworks can actually use — traceable requirements, defensible test methodologies, and analysis that a certification auditor or designated engineering representative can follow without needing a translator.
Relteck structures its reliability deliverables — MTBF reports, FMEA/FMECA analysis, and test reports — so they slot directly into a client’s broader certification and quality documentation package, rather than existing as a standalone artifact that has to be reformatted before it’s useful.
Lifecycle Reliability Planning
Aerospace programs are long — platforms can stay in service for twenty, thirty, or more years, well past the original design team’s involvement. Reliability engineering on these programs has to account for the entire lifecycle, not just the qualification phase. Relteck’s lifecycle reliability planning typically covers:
- Early design-phase reliability allocation, so requirements flow down to components before hardware is committed
- Prediction and analysis to support design reviews and supplier selection decisions
- Environmental and accelerated life testing to validate reliability assumptions before production
- Field reliability monitoring and failure analysis support once the platform is in service
- Obsolescence and long-term supportability planning, since aerospace components often need to remain reliable long after their original manufacturing run ends
This full-lifecycle view is what separates a one-time test report from a reliability program that actually protects a platform’s operational life.
Why Aerospace Clients Choose Relteck
Relteck has supported reliability engagements across the aerospace and defense supply chain, working with organizations that include Amphenol Aerospace and other tier suppliers whose products depend on rigorous reliability documentation. Our clients consistently point to fast turnaround, accurate calculations, and engineers who stay engaged through revisions rather than disappearing after the first deliverable — feedback that matters on aerospace programs where a single reliability report often goes through several rounds of internal and customer review before it’s accepted.
Whether you need MTBF prediction for a new avionics design, environmental reliability testing ahead of a certification milestone, or a lifecycle reliability plan for a platform already in production, Relteck can scope a program around your specific requirements.
Ready to build reliability into your next aerospace program? Contact Relteck or call 408-420-4983.
