Product certification
Cargo loading and restraint system evidence review for the agreed certification basis
This review is for OEMs, MROs, Engineering teams responsible for cargo loading and restraint system. It is triggered by freighter or combi program. EE checks restraint-load analysis, test for the emergency-landing g-cases, floor-fitting, plus the governing plan or application, against the agreed certification basis. Discrepancies include missing source records, mismatched configuration, unsupported assumptions, or restraint loads analysed for forward g but not lateral or vertical. Output includes Cargo loading and restraint system gap register, Means of compliance map, Test and analysis request list.
When this review is needed
- The team is preparing for freighter or combi program.
- Supplier records and applicant records must be reconciled.
- Program leads need to know which findings could block the next gate.
- A proposed means of compliance depends on evidence reuse, analysis, or rationale.
The problem
Reviewers need to reconstruct the path from final claim to source data. For cargo loading and restraint system, weak files usually show restraint loads analysed for forward g but not lateral or vertical, then reveal revision drift or unclosed assumptions.
What gets reviewed
- Review restraint-load analysis against the configuration, installation, or claim under review.
- Compare test for the emergency-landing g-cases against the configuration, installation, or claim under review.
- Trace floor-fitting against the configuration, installation, or claim under review.
- Challenge attachment substantiation against the configuration, installation, or claim under review.
- Reconcile net/barrier strength against the configuration, installation, or claim under review.
- Confirm containment data against the configuration, installation, or claim under review.
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Identify what is missing against the means of compliance.
What gets validated
- Pass check: restraint-load analysis must match the released configuration and the claimed means of compliance.
- Configuration check: test for the emergency-landing g-cases must match the released configuration and the claimed means of compliance.
- Trace check: floor-fitting must match the released configuration and the claimed means of compliance.
- Rationale check: attachment substantiation must match the released configuration and the claimed means of compliance.
- Closure check: net/barrier strength must match the released configuration and the claimed means of compliance.
Evidence normally required
- Controlled restraint-load analysis
- Released test for the emergency-landing g-cases
- Signed floor-fitting
- Current attachment substantiation
- Archived net/barrier strength
- Supplier containment data
Common discrepancies
- Gap: restraint loads analysed for forward g but not lateral or vertical.
- Mismatch: load path into the floor not reconciled with the airframe capability.
- Unsupported claim: barrier/net data that does not bound the actual cargo mass.
What is at stake
An unresolved gap can become a finding, a deferred submittal, or a narrower claim. Missing support for load path into the floor not reconciled with the airframe capability often affects several records at once.
How the work runs
Frame Cargo Loading
Confirm the exact event, affected file set, buyer role, and decision standard before any restraint-load analysis is treated as sufficient.
Trace System Evidence
Walk the named evidence from index entry to source artifact and mark where the trail supports, conflicts with, or fails to answer the page-specific question.
Sort Agreed Certification
Group exceptions by closure route: document retrieval, data correction, engineering disposition, authority response, or contractual decision.
Package Product Loads
Deliver the exception list, evidence map, and owner sequence in a form that can move directly into remediation, submittal cleanup, or transaction negotiation.
What the buyer receives
- Cargo loading and restraint system gap register
- Means of compliance map
- Test and analysis request list
- Interface closure plan
Who uses the output
- Certification engineer assign closure actions from the exception register.
- structures engineer use the map to locate source evidence.
- loads engineer decide what can proceed and what must wait.
How the work fits into the transaction or program
What a cargo handling / restraint system (locks, rollers, nets, barriers) must substantiate, a category no page covers and one that is central to freighter and combi work, because the evidence turns on restraint loads under emergency-landing accelerations, load-path into the floor structure, and net/barrier retention. The evidence set centers on restraint-load analysis and test for the emergency-landing g-cases, floor-fitting and attachment substantiation, net/barrier strength and containment data. The likely weak points are restraint loads analysed for forward g but not lateral or vertical, load path into the floor not reconciled with the airframe capability, and barrier/net data that does not bound the actual cargo mass and CG. The output gives the certification engineer a cleanup register for Cargo loading and restraint system before freighter or combi program.
Start with a single asset
Reduce finding cycles by checking the package first.
Regulatory limits
This review is not an approval activity. Final findings, acceptance, installation approval, and airworthiness decisions remain with the responsible applicant, authorized representatives, and authorities.
What this review does not cover
- Authority negotiations as decision maker
- Compliance finding approval
- Test execution or article build
- Operator airworthiness release
Specific to this review
- Configuration identity matters because evidence from another baseline may prove a different article, load, or installation.
- A useful trail names the source record, revision, owner, and closure decision for each claim.
- The exception list separates document-control cleanup from gaps that need engineering substantiation.
- The finding pattern for this page is specific: restraint loads analysed for forward g but not lateral or vertical changes the strength of the certification argument.
- The scope uses the Cargo Loading Restraint System question as the control point, so the review stays tied to Freighter or combi program and the buyer decision behind it.
- The evidence starts with Restraint-load analysis and follows Evidence Review Agreed Certification references until every exception has a source location and a reason code.
- The finding logic separates missing paperwork, conflicting status, stale revision data, and unsupported disposition because each class closes through a different owner.
- The timing matters for Certification engineer: the output is useful only if the unresolved items are visible before acceptance, submittal, handback, or negotiation pressure fixes the sequence.
- The boundary control keeps Basis Product Loads Floor questions in the records or certification lane and sends technical acceptance issues to the authorized people who own them.
- The handoff value comes from Cargo loading and restraint system gap register; it gives the next reviewer a precise map instead of another broad request for a better file.
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.
Frequently asked questions
What makes this product-types review different from a general file audit?
The scope is tied to cargo loading restraint system and to the decision named in the request. A general audit can list weak records; this pass ranks the gaps by whether they block freighter or combi program or can be closed later without changing the decision.
What evidence has to be available before this work starts?
The starting point is restraint-load analysis, the current status source, and any index or matrix that tells reviewers where the supporting artifact should live. Missing inputs are logged as findings rather than filled with assumptions.
Who decides whether an open item is acceptable?
The review explains what the evidence supports and gives certification engineer a closure path. Acceptance remains with the buyer, operator, authority, delegated engineer, or authorized person responsible for the underlying airworthiness or certification decision.
Relevant glossary terms
Related pages
Where this fits
Talk to an engineer who has done this work
We will walk through your current state, the records or evidence involved, and a scoped first engagement.
Talk through the aircraft, records, evidence, deadline, and next useful step.