The Economics of Fleet Sustainment

Commercial aviation runs on aircraft built to last decades. Boeing 737s, Airbus A320 families, and widebody workhorses like the 757 and 767 routinely operate 25 to 30 years or more. The global MRO market exceeds $90 billion annually because keeping these fleets airworthy is the single largest operational investment airlines and operators make.

A significant and growing share of that spend goes to one problem: electronics obsolescence. The circuit boards inside flight management computers, navigation systems, cockpit displays, and cabin management controllers were designed with components that the semiconductor industry stopped making years ago. When a critical avionics board fails and the OEM no longer supports it, operators face a decision that directly impacts their bottom line and their schedules.

 

When the OEM Moves On

Avionics manufacturers like Collins Aerospace, Honeywell, and legacy divisions of Thales designed systems for aircraft that would fly for decades. But the commercial semiconductor lifecycle operates on a five-to-ten-year rhythm. Components go end-of-life. Production lines shut down. Technical support contracts expire.

For operators, the consequences are immediate:

• Replacement boards become scarce or unavailable at any price
• Lead times for OEM-sourced spares stretch from weeks to months
• Single-source dependencies leave entire fleets vulnerable to one supplier’s decisions
• Aging inventory loses reliability while demand only increases

The result is a widening gap between what the fleet needs and what the supply chain can deliver. Every year, more components cross the obsolescence threshold while the aircraft they support continue flying revenue routes.

 

Reverse Engineering: The Smart Path to Continued Airworthiness

ScanCAD bridges that gap with precision reverse engineering that produces complete technical data packages from physical circuit board artifacts. When an original avionics board is the only reference that exists, ScanCAD’s scanning and analysis technology extracts every detail needed to manufacture an exact-match replacement.

Each technical data package includes:

• Gerber files for every copper and solder mask layer
• Complete bill of materials with component identification
• Netlist verification for electrical connectivity
• Schematic-level documentation of circuit function
• Dimensional data for form-fit-function compliance

This documentation supports industry pathways for FAA-approved replacement parts, including Parts Manufacturer Approval and Designated Engineering Representative processes. The result is a manufacturable, traceable replacement that maintains the aircraft’s type design—without requiring a full system redesign.

 

Critical Systems We Support

Stop Grounding Aircraft for Want of a Part

An aircraft on ground event can cost operators $150,000 or more per day in lost revenue, passenger rebooking, and cascading schedule disruptions. When the root cause is a failed electronics board with no available replacement, that daily cost compounds until a solution is found.

The traditional responses—emergency procurement at premium prices, borrowing spares from other aircraft in the fleet, or waiting months for an OEM to restart a discontinued production run—are reactive, expensive, and unsustainable.

ScanCAD offers a proactive alternative. By reverse engineering critical boards before they become emergencies, operators build a documented path to replacement manufacturing. When a board fails, the technical data package already exists. Manufacturing can begin immediately with any qualified fabrication partner, eliminating single-source bottlenecks and reducing AOG exposure.

 

From Artifact to Airworthy Replacement

ScanCAD’s reverse engineering workflow transforms a physical circuit board artifact into a complete, manufacturing-ready technical data package:

1. High-resolution scanning captures every layer of the original board at highl precision
2. Intelligent extraction identifies traces, pads, vias, and component footprints across all layers
3. Component analysis documents every device on the bill of materials with manufacturer and specification data
4. Netlist generation and verification confirms electrical connectivity matches the original design
5. Complete TDP delivery provides Gerber files, BOM, netlist, and dimensional data ready for manufacturing and regulatory documentation

The output supports PMA applications, DER-approved repairs, and internal MRO documentation—giving operators a clear path from obsolete board to airworthy replacement.

 

Proven with Critical Aerospace Systems

ScanCAD currently supports domestic radar systems ensuring continuing operation of essential aerospace infrastructure. With more than 33 years of precision reverse engineering experience, ScanCAD has built a track record of delivering accurate, manufacturing-ready technical data packages for complex, multi-layer circuit boards across demanding industries.

The same technology that sustains radar systems, avionics, and ground support equipment today is ready to address the next wave of obsolescence challenges as commercial fleets continue aging and OEM support continues contracting.