KEEP YOUR PRODUCTPROFITABLE LONGAFTER LAUNCH
Full-lifecycle engineering support from first shipment to end-of-life.
Most engineering investment flows into new product development, yet fielded products generate the revenue that funds everything else. Ankh's sustaining engineering keeps those products manufacturable, compliant, and cost-competitive throughout their commercial life — managing obsolescence, investigating field failures with 8D/CAPA, executing DFM cost-reduction respins, and maintaining the BOMs, schematics, and test procedures production and service teams depend on.
What We Sustain
Component Obsolescence Management
Ankh monitors EOL and PCN notifications from every distributor and manufacturer in your supply chain, performs lifetime buy analysis to quantify remaining inventory risk, and qualifies form-fit-function alternates before shortages interrupt production.
Field Failure Analysis & CAPA
Systematic failure analysis using electrical characterization, SEM/EDX inspection, cross-sectioning, and boundary-scan diagnostics to isolate root cause — documented in formal 8D reports, with corrective action verified through accelerated life testing before closing the CAPA loop.
ECO / ECN Process Management
ECO workflow managed from change request intake through redline approval, BOM revision, and production implementation — every change traceable, downstream documents updated in lock-step, affected regulatory submissions flagged for re-review.
DFM Cost-Reduction Respins
Post-production design changes — consolidating multi-chip functions, replacing exotic tolerances, eliminating unnecessary shielding cans, or reformulating PCB stackups — executed without disrupting functionality or regulatory clearances.
Production Yield Investigation
Embedded with your CM's production team — SPC and Pareto analysis of test data, process audits, and targeted process controls or design changes that drive yield back up and sustain it.
Regulatory Re-Certification After Design Changes
Each ECO evaluated for certification impact across FCC, CE, UL, and IEC 62368-1 — technical file updates prepared for change notification or new submission and managed through to updated marks.
Product Documentation Maintenance
Controlled document management appropriate to your organization's size and regulatory context — initial audit to reconcile as-built to as-documented state, maintained current through every subsequent change cycle.
Customer Complaint Root Cause Analysis
Fault tree analysis and Ishikawa diagrams combining complaint data with production records, test data, and supply chain history to build a complete causal picture — followed by design or process changes that eliminate recurrence.
End-of-Life & Refurbishment Planning
EOL roadmaps covering last-time-buy scheduling, spare parts optimization, field service bulletins, and refurbishment program design for high-value assemblies.
Conformal Coating & Rework Specification
Material specifications, removal protocols, and inspection criteria for conformal coating rework — including compatibility assessment between original and replacement systems for IPC-A-610 acceptance.
How We Work
Product Baseline Audit
We audit BOM accuracy versus as-built assemblies, schematic revision alignment, open field failure trends, component lifecycle risk, and outstanding regulatory gaps. The baseline audit produces a prioritized risk register that drives the first 90-day work plan and surfaces issues before they become production emergencies.
Component Risk Assessment
Every active BOM line item is scored against IHS Markit and manufacturer lifecycle data — NCNR history, single-source exposure, and EOL notification patterns. High-risk components receive a qualification plan with defined alternates and validation timeline, giving procurement runway to act before shortages occur.
Change Control Integration
We integrate into your existing change control workflow—Arena, Windchill, Git, or structured folder—establishing consistent change request intake, impact classification (safety-critical, regulatory-relevant, cosmetic), approval routing, and implementation verification. The process becomes more rigorous and traceable without adding bureaucratic drag.
Failure Investigation & CAPA Execution
Electrical characterization, visual inspection, and destructive physical analysis are scaled to the failure mode; root cause is documented in a formal 8D report with corrective actions, owners, and verification criteria. Every CAPA is tracked to closure with effectiveness confirmed through production data or accelerated testing.
Cost Reduction & Respin Execution
Cost-reduction opportunities are identified through materials cost analysis, CM design-to-cost reviews, and component benchmarking; non-FFE changes are batched into respin projects to amortize layout and test costs. Each respin delivers updated documentation, a production validation build plan, and a cost savings confirmation report.
Ongoing Monitoring & Reporting
Monthly reporting covers component lifecycle status, CAPA health, yield trends, and field return rates with defined escalation thresholds. Quarterly reviews align the sustaining work plan to the commercial roadmap so engineering resources target what most directly protects revenue and margin.
Engineering Depth That Keeps Products in the Field
Component Obsolescence: From EOL Alert to Qualified Alternate
Obsolescence is the most predictable hardware risk and still catches companies off guard — monitoring hundreds of BOM lines requires sustained attention most sustaining teams can't maintain. Automated monitoring against distributor APIs and IHS Markit detects PCN and EOL events within days; lifetime buy analysis and alternate qualification begin immediately.
Electronics Design8D CAPA: Systematic Closure of Field and Production Failures
8D separates containment — stopping the bleeding in 24–48 hours through quarantine and tightened in-process controls — from permanent corrective action eliminating root cause. The direct technical cause and the systemic escape route are both addressed; effectiveness is verified with statistically meaningful production samples before the CAPA closes.
Systems IntegrationRegulatory Re-Certification: Navigating Change Impact Across Standards
A component substitution shifting conducted emissions can fail FCC Part 15 retesting; a firmware update changing radio timing can require a new FCC ID — design change regulatory exposure is routinely underestimated. Every ECO is classified as no-impact, change notification, or new submission and managed through to updated certification marks.
Regulatory Certification
Full-lifecycle engineering support from first shipment to end-of-life.
Sustaining Engineering Across Ankh's Product Range
Components age out, production costs drift upward, and field failures surface latent weaknesses in every hardware category — Ankh's sustaining practice keeps products manufacturable, cost-competitive, and compliant.
Medical Devices
Design history file maintenance and 510(k) supplement management for post-market changes
View ProductIndustrial Equipment Monitoring
10+ year BOM viability analysis for infrastructure-class product lifecycles
View ProductCold Chain Monitoring
Sensor calibration drift correction and NIST traceability re-validation after component substitution
View ProductRuggedized Devices
MIL-STD-810 re-verification after enclosure or material changes
View ProductWearable Electronics
Biocompatibility re-evaluation and UL 2741 compliance after materials substitution
View ProductWireless Communication
FCC ID continuity management across antenna, PA, and firmware revisions
View ProductPOS & Kiosk Hardware
PCI PTS re-validation after security controller or PCB layout changes
View ProductData Loggers
Long-term battery chemistry qualification and shelf-life extension programs
View ProductSmart Home Automation
Matter/Thread protocol compliance maintenance across SDK and silicon updates
View ProductPower Monitoring
IEC 62053 revenue metering accuracy re-qualification after analog front-end changes
View ProductHardware Depth Across Every Discipline
A failure presenting as a PCB defect may root in a firmware edge case, a tolerance stack, or a CM process change — vendor hand-offs add days to every investigation. Electronics, firmware, mechanical, and manufacturing process engineering under one roof means root cause is followed wherever it leads.
Process Rigor Without Bureaucratic Overhead
Uncontrolled changes to fielded products create more problems than they solve, but most hardware companies can't justify large-OEM PLM overhead. Lightweight change control, CAPA, and document management workflows provide the traceability regulatory bodies require — right-sized to your environment.
Supply Chain Intelligence Built In
Active distributor relationships, EOL notification programs, and automated lifecycle monitoring across every active BOM ensure EOL notices are acted on within days — the difference between an orderly lifetime buy and an emergency redesign under production pressure.
Deliverables
Component Risk Register
Every BOM line item scored by obsolescence risk and single-source exposure, with alternate qualification status per component — updated quarterly or on any PCN/EOL notification.
8D CAPA Reports
8D reports for field failures and yield excursions — containment actions, root cause with supporting evidence, corrective action plan, and effectiveness verification.
Engineering Change Orders
Fully documented ECOs with change description, technical justification, regulatory impact assessment, affected document list with revision updates, and production implementation instructions.
Updated BOMs & Schematics
Revision-controlled BOM updates in your preferred format (Excel, Arena, Windchill, or Altium) and schematic redlines reflecting all approved engineering changes, with revision history aligned to the ECO record.
Cost Reduction Analysis Report
BOM cost benchmarking report identifying component substitution, design consolidation, and process change opportunities — with estimated savings, implementation risk rating, and recommended prioritization for respin batching.
Regulatory Impact Assessments
Per-ECO regulatory impact classification identifying which standards are affected, what testing or documentation updates are required, and the recommended path to maintaining certification coverage.
Field Service Bulletins
Field service bulletins documenting identified field issues, affected serial number ranges, identification criteria, and corrective action procedures including part numbers, tools, and step-by-step repair instructions.
End-of-Life Transition Plan
EOL roadmap covering last-time-buy schedule and quantities, spare parts inventory recommendation, field support commitment duration, refurbishment feasibility assessment, and customer communication templates.
Every sustaining engagement produces controlled, revision-tracked deliverables that integrate directly into your PLM system, document management repository, or shared engineering environment.
Often Paired With Sustaining Engineering
Electronics Design
DFM cost-reduction respins and alternate qualifications require full electronics design capability — schematics, layout, and signal integrity analysis on affected circuits.
ExploreRegulatory Certification
Design changes affecting emissions, safety, or radio behavior trigger re-certification; Ankh's regulatory team keeps certifications current through every ECO cycle.
ExploreFirmware Development
Field failures with firmware root causes — timing edge cases, memory management issues, watchdog misconfigurations — require firmware engineering resources as part of the CAPA process.
ExploreSystems Integration
Complex failures spanning hardware, firmware, and system interactions require systems-level investigation to avoid misattributing root cause.
ExploreWork That Demonstrates the Standard
Industrial Gateway: Zero Production Disruption Through Dual-Source MCU Transition
A lifetime buy analysis revealed existing MCU inventory covered only 8 of the 12 months remaining before EOL — Ankh identified two pin-compatible alternates, developed firmware porting plans for register map and clock tree differences, and ran parallel qualification builds. Both alternates achieved full qualification within 10 weeks, avoiding an estimated $2.4M revenue disruption.
Read the Case StudyMedical Monitor: Field Failure RCA Eliminates Recurring Warranty Returns
Combining return data with lot traceability, shipment records, and ambient humidity data, Ankh identified a conformal coating adhesion failure on PCBs from a 6-week window during which the CM switched flux formulations without issuing a PCN. An 8D closed the issue with a coating qualification requirement in the process control plan; warranty returns fell from 3.2% to 0.4% within two production cycles.
Read the Case StudyIs Your Fielded Product Getting the Engineering Attention It Deserves?Protect the revenue your hardware generates.
Start with a product baseline audit and leave with a prioritized action plan for keeping margins intact, certifications current, and customers confident.