Compliance matrix
Refreshing stale compliance-matrix citations before an STC submittal
This closure work fixes an STC compliance matrix whose citations have drifted away from the evidence they name. It is run for the modifier when matrix lines still point at report numbers, revisions, or document titles that were superseded, renamed, or moved as the program evolved. Each cited reference is checked against the current evidence set, corrected to the document that actually supports the compliance claim, and confirmed to still say what the matrix asserts. You receive a corrected matrix, an evidence request list for citations that no longer resolve, and a disposition package a reviewer can follow from claim to source without a dead reference.
When this review is needed
- A late revision of a report left the matrix citing the version it replaced.
- Documents were reorganized or renumbered and the matrix references never followed them.
- A reviewer clicked a citation and it resolved to the wrong revision or nothing at all.
- Two matrix lines cite the same evidence for claims it only partly supports.
The problem
A compliance matrix is only as good as the citations under it, and those citations rot quietly. A report gets revised, a folder is restructured, an analysis is split into two documents, and the matrix keeps pointing where the evidence used to be. The claims may all be true, but a reviewer cannot confirm that if the reference lands on a superseded revision or a document that no longer exists. Chasing each dead citation by hand across a large matrix is slow, and it is exactly the work that gets deferred until a reviewer forces it.
What gets reviewed
- Every matrix citation checked against the current controlled evidence set
- References corrected to the document and revision that actually supports the claim
- Confirmation that the cited evidence still says what the matrix line asserts
- Citations that no longer resolve flagged for evidence recovery
- Duplicate references reconciled where one document is cited for claims it only partly covers
What gets validated
- Each citation resolves to a real, current document at the revision named
- The cited section supports the specific compliance claim on that matrix line
- No line points at a report revision that a later revision has superseded
- Split or merged documents are cited at their present location, not their former one
- Every matrix claim traces to at least one live citation a reviewer can open
Evidence normally required
- The current compliance matrix with its citation column
- The controlled evidence library with current report and revision numbers
- Document change or revision logs for the affected reports
- Any reorganization record showing where documents moved
- The certification plan the matrix is built to satisfy
Common discrepancies
- A matrix line citing revision A of a report that reached revision C during the program
- A citation whose document title changed when the analysis was rescoped
- A reference to a document that was absorbed into another and no longer stands alone
- A claim supported only by a citation that points at an empty or missing file
What is at stake
A single citation that resolves to the wrong revision invites a reviewer to check the next ten, and a matrix that fails spot checks reads as unmaintained regardless of whether the underlying compliance is sound. That erodes credibility at the moment the modifier most needs it, and it converts a housekeeping problem into a formal finding answered under review pressure rather than cleared in advance.
Move from findings to resolution
Identify the missing data behind the finding.
How the work runs
Inventory the citations
Extract every reference in the matrix and resolve each against the current evidence library.
Repoint the stale ones
Correct references to the document and revision that presently supports the claim.
Confirm the support
Read the cited section to check it still asserts what the matrix line claims.
Flag the unresolvable
List citations with no live target for evidence recovery and package the rest.
What the buyer receives
- A corrected compliance matrix with every citation resolved to current evidence
- An evidence request list for references that no longer point at a live document
- A disposition package a reviewer can follow from each claim to its source
Who uses the output
- Certification leads presenting a matrix that survives citation spot checks
- Engineering owners confirming their reports are cited at the right revision
- Program managers tracking which citations still block the submittal
How the work fits into the transaction or program
The matrix is the reviewer's map from claim to evidence, so its citations have to be current before finding closure begins. This work runs after the evidence set stabilizes and before the data submittal, cleaning the references so the later review spends its time on substance rather than on chasing where a document went.
Start with a single asset
Confirm each requirement maps to substantiating evidence.
Jurisdiction-specific considerations
The two authorities structure the compliance demonstration differently, and a matrix built for one may cite documents under headings that do not map cleanly to the other. The refresh notes where a citation valid for the primary submission needs re-pointing for a second authority so the matrix does not read as stale on the parallel filing.
Regulatory limits
This work corrects and confirms citations so a reviewer can verify the compliance claims. It does not judge whether the cited evidence proves compliance, approve the modification, or grant the STC. The adequacy of each claim remains the authority's finding.
What this review does not cover
- Producing new evidence for a claim whose citation cannot be repaired
- Rewriting the compliance claims or their means of compliance
- Any determination that a claim is compliant on the strength of its citation
Specific to this review
- Citation drift is usually invisible in development because the authors know where the real document is even when the reference does not.
- A report revised for an unrelated reason can silently invalidate every matrix line that cited its earlier version.
- Reviewers treat citation quality as a proxy for data-set discipline, so a few dead references color the read of an otherwise sound matrix.
Sources
U.S. Government (eCFR). Type certificates, STCs (Subpart E), TSO authorizations (Subpart O), PMA (Subpart K), and export airworthiness approvals (Subpart L).
Federal Aviation Administration. FAA type certification process, certification basis establishment, and compliance findings.
SAE International. Development assurance process at aircraft and system level, including requirements capture and validation.
Frequently asked questions
Isn't correcting citations just clerical cleanup?
The pointer is clerical, but confirming the newly cited revision still supports the claim is substantive. A report can change in ways that weaken the original assertion, so each repointed citation is read against the matrix line rather than swapped blind.
Relevant glossary terms
Related pages
Where this fits
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