Qualification evidence
Environmental qualification evidence review for airborne equipment
An environmental qualification evidence review checks whether an article's DO-160G test evidence actually covers the environment the installation declares. It is for avionics and equipment suppliers preparing or recovering a qualification package. The review reads the qualification test plan, the category selections, the conducted reports, and the test article configuration, then maps each category back to the declared environment and the means of compliance. You receive a category-by-category coverage view and a list of categories that are untested, tested at the wrong level, or run on a non-representative unit.
When this review is needed
- A qualification campaign is finished and the reports need an independent read before they feed a TSO or installation submittal.
- The installation environment changed and the existing category selections may no longer bound the new zone or platform.
- A program inherited qualification data from an earlier configuration and needs to know what still applies.
- Findings question whether a category was tested at the level the environment demands.
The problem
Environmental qualification is documented across a test plan, a string of section reports, and a configuration record, and the three drift apart. A category gets deferred and never closed, a level is chosen from an earlier installation, or the unit on the shaker is not the unit being certified. The qualification matrix says complete while a section report tells a different story, and that mismatch surfaces during review rather than during test.
What gets reviewed
- The qualification test plan and the rationale behind each DO-160G category selection
- The declared installation environment, zone, and equipment category mapping
- Conducted-emissions, radiated-emissions, and susceptibility section coverage
- Temperature, altitude, vibration, and shock category levels against the platform
- Fluids, salt fog, sand and dust, and fungus categories where the installation calls for them
- The test article configuration and how it relates to the certified build standard
- How each report ties back to the means of compliance and the qualification matrix
What gets validated
- Every category the declared environment requires has a corresponding section report
- Each tested level meets or exceeds the level the installation zone demands
- The test article configuration matches the build standard being certified, or the delta is justified
- Deferred or not-applicable categories carry a written, defensible rationale
- Section report pass criteria match the criteria the test plan defined
- The qualification matrix entries point at reports that currently support them
- HIRF and lightning indirect effects are addressed where the installation exposes the article
Evidence normally required
- The DO-160G qualification test plan and category matrix
- The conducted section test reports and any test logs
- The declared installation environment and equipment category definition
- The test article configuration and build records
- Prior qualification data being reused and its applicability rationale
Common discrepancies
- A category marked complete in the matrix with no section report behind it
- Vibration or temperature levels carried over from an installation with a milder environment
- A test article that differs from the certified configuration without a documented delta
- Susceptibility categories tested but the matching emissions categories deferred
- Not-applicable categories asserted without a rationale tied to the installation
- HIRF or lightning categories absent from a package destined for an exposed zone
What is at stake
A category gap found at submittal can mean a return to the test house, a slot wait, and a schedule slip measured in months. A level chosen below the declared environment can invalidate a whole section even when the hardware would have passed at the right level. Each re-test consumes budget that was committed elsewhere.
Move from findings to resolution
Identify gaps against the means of compliance.
How the work runs
Map the environment
Confirm the declared installation environment, zone, and equipment category, and derive the DO-160G categories the article must address.
Reconcile the matrix
Compare each category-matrix entry against its section report and the test plan that defined it.
Check levels and configuration
Verify tested levels meet the environment and that the test article matches the certified build standard.
Package the gaps
Produce a category coverage view and a closure list ordered by re-test cost and review risk.
What the buyer receives
- A DO-160G category coverage view, marked complete, partial, or missing per section
- A list of categories tested below the level the declared environment requires
- A configuration-delta note where the test article diverges from the certified build
- A prioritized closure list ordered by re-test cost and review risk
Who uses the output
- Certification leads assembling the qualification package for submittal
- Qualification test engineers planning any re-test before it goes to the test house
- Program management sequencing test-slot bookings against the schedule
How the work fits into the transaction or program
The review concentrates on the environmental section of a wider certification data set. It pairs with a software or hardware lifecycle review when an article carries those disciplines, and it feeds a compliance matrix review once the qualification evidence is reconciled.
Start with a single asset
Confirm requirements trace through verification.
Regulatory limits
Endeavor Elements reviews the applicant's qualification evidence for coverage and consistency against the declared environment. It does not witness or perform the testing, accept the qualification on an authority's behalf, or guarantee that the package will be approved.
What this review does not cover
- Conducting or witnessing the environmental testing
- Issuing any qualification approval or compliance finding
- Selecting category levels in place of the applicant's engineering judgment
Specific to this review
- DO-160G organizes environmental qualification by section, and a package can show every section started while one section is never closed, which is why section-level coverage is checked rather than the matrix summary.
- A category level is only meaningful against a declared environment; a level adequate for one installation zone can be short for another, so levels are read against the zone, not in isolation.
- Qualification evidence is tied to the test article configuration, and a unit that differs from the certified build can void otherwise-passing results unless the delta is justified.
- Susceptibility and emissions categories are distinct test families, and a package can address one while leaving the paired category open.
Sources
RTCA. Environmental qualification test categories and procedures referenced by TSO and equipment qualification.
U.S. Government (eCFR). Type certificates, STCs (Subpart E), TSO authorizations (Subpart O), PMA (Subpart K), and export airworthiness approvals (Subpart L).
European Union / EASA. EASA design and production certification, STCs, ETSO authorizations, and EASA Form 1 release.
Frequently asked questions
Can you review qualification data we inherited from an earlier configuration?
Yes. A common engagement is reading reused qualification data against the current build and installation environment, then marking which sections still apply and which need re-test or a documented delta.
Do you witness the DO-160 testing?
No. The review reads the test plan, the section reports, and the configuration records. The testing itself is performed and witnessed under the applicant's qualification arrangements.
Relevant glossary terms
Related pages
Where this fits
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