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FAA MOSAIC manufacturer resource

A MOSAIC market-entry plan for European aircraft manufacturers

See how European manufacturers can evaluate MOSAIC, translate CS-LSA or CS-23 evidence, and plan the technical and commercial work needed for U.S. entry.

See what is inside the report

The decision behind this topic

For European aircraft OEMs, the useful question is not simply what MOSAIC says. The work is reusing credible European work without assuming automatic acceptance. The management decision is which records translate cleanly and where a U.S.-specific gap remains. That requires an aircraft-specific record, not a generic interpretation copied into a schedule.

A credible program distinguishes confirmed requirements from assumptions, ties each conclusion to the configuration it covers, and gives unresolved items an owner and a decision date. This is especially important when prior certification work, supplier evidence, or commercial forecasts are being reused in a new U.S. context.

Evidence to put on the table

EASA or national-authority certification records

CS-LSA or CS-23 compliance evidence

English-language manuals, production records, and configuration data

A practical way to proceed

  1. 1

    inventory evidence by requirement and configuration

  2. 2

    flag terminology and approval-basis differences

  3. 3

    plan U.S. operating, support, and distribution needs alongside compliance

The output should be a traceable recommendation with conditions, not an unsupported yes or no. Where evidence is incomplete, show the closure method, cost and schedule exposure, and the event that will change the decision.

Frequently asked questions

What should European aircraft OEMs verify first?

Start with the exact aircraft configuration, intended U.S. use, and the authoritative requirements and standards that support the proposed path. A useful review makes assumptions visible and connects conclusions to controlled evidence.

Does the MOSAIC Manufacturer's Guide replace legal or engineering review?

No. The guide is a decision-support resource, not legal, regulatory, investment, or engineering advice. Aircraft-specific conclusions require current source review and qualified technical judgment.

EE-WP-2026-01

Build your MOSAIC strategy from a structured, source-backed report.

Use the guide to frame the questions, then validate the pathway against your aircraft, organization, and current authoritative sources.

For informational purposes only. Not legal, regulatory, investment, or engineering advice.