CFM56 non-routine cards
CFM56 engine non-routine closure records review
This review confirms that the non-routine cards raised during a CFM56 engine's maintenance were dispositioned, corrected, and closed. It is run by or for an operator, lessor, or asset manager evaluating or transferring a specific engine serial number. It checks defect cards, engineering dispositions, corrective-action entries, and the final sign-offs that closed each finding. You receive a non-routine closure view, an exception list for open or unsupported cards, and a closure plan for the engine under review.
When this review is needed
- A shop visit raised a large volume of non-routine cards and each has to be shown as closed.
- A defect required an engineering disposition and the disposition has to be located and matched to the card.
- A buyer requires the non-routine register reconciled to closed corrective actions before pricing the engine.
- A finding drove a repair and the repair's approval basis has to connect back to the non-routine card.
The problem
Every routine inspection on a CFM56 can spawn non-routine cards, and each one has to be dispositioned by engineering, corrected, and signed off before it is closed. A card left in the register with no disposition, a corrective action with no final sign-off, or a repair that traces to a finding the paperwork never resolved, all hide in the volume until a buyer reconciles the register against the closures.
What gets reviewed
- Each non-routine card matched to its engineering disposition
- Corrective actions confirmed against the disposition they implement
- Final sign-offs verified for every closed non-routine card
- The non-routine register reconciled to the closed card set
- Repairs arising from findings linked back to their parent non-routine card
- Deferred non-routine items tied to an explicit disposition
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Send a representative, redacted record set and we will scope the review.
What gets validated
- Every non-routine card carries an engineering disposition
- The corrective action recorded matches the disposition it implements
- Each closed card has a final sign-off
- The non-routine register reconciles to the set of closed cards
- A repair arising from a finding traces back to the non-routine card that raised it
Evidence normally required
- The non-routine register for the engine serial number
- The non-routine cards raised during the maintenance events
- Engineering dispositions for the findings
- Corrective-action entries and final sign-offs
- Repair records arising from non-routine findings
Common discrepancies
- A non-routine card in the register with no disposition recorded
- A corrective action with no final sign-off to close it
- A repair that traces to a finding whose card was never closed
- A deferred non-routine item with no disposition explaining the deferral
What is at stake
An open non-routine card means a known defect has no recorded resolution, which a buyer reads as an unresolved condition on the engine. A corrective action without a final sign-off cannot be shown as complete, and a repair whose parent finding was never closed leaves the whole chain of evidence broken at the point that matters most.
Move from findings to resolution
Move from findings to a documented resolution path.
How the work runs
Reconcile the register
List every non-routine card raised and match it against the closed card set.
Trace the dispositions
Confirm each card carries an engineering disposition and the corrective action that implements it.
Verify the closures
Check that every closed card has a final sign-off and that repairs link back to their findings.
List the open items
Flag cards without disposition or sign-off and set what each needs to close.
What the buyer receives
- A non-routine closure view for the engine serial number
- An exception list for open or unsupported non-routine cards
- A closure plan naming the disposition or sign-off each open card needs
Who uses the output
- Records teams confirming every finding raised was dispositioned and closed
- Asset managers reading unresolved findings into the engine's condition and value
- Continuing-airworthiness staff closing open non-routine items before transfer
How the work fits into the transaction or program
The non-routine review runs after a maintenance event and before the engine is marketed, so open findings are closed while the shop that raised them can still supply the disposition. Its exception list feeds the sign-off recovery and closure the transfer depends on.
Aircraft-specific considerations
CFM56 inspections routinely find hardware that generates non-routine cards, and the volume rises with engine age across the large installed base, so the register can run long on a mature serial number. The review is scoped to the specific engine's non-routine history, since the findings on one serial number say nothing about closure on another.
Jurisdiction-specific considerations
Disposition and sign-off authority conventions differ between FAA and EASA maintenance, so a closure acceptable in one system may need a different disposition record for the other, and the review notes where a non-routine set would require rework for the receiving register.
Regulatory limits
The review confirms that non-routine findings were dispositioned and closed in the records. It does not disposition a defect, perform a corrective action, or determine that the engine is airworthy.
What this review does not cover
- Dispositioning a finding or performing a corrective action
- Signing off or closing a non-routine card
- Any airworthiness determination on the engine
Specific to this review
- An open non-routine card is read as an unresolved defect, so a card with no disposition weighs more on value than the underlying finding usually would.
- The chain from finding to disposition to corrective action to sign-off has to hold end to end, and it most often breaks at the final sign-off rather than the disposition.
- A repair whose parent non-routine card was never closed leaves the repair looking unsupported even when its own paperwork is complete.
Sources
U.S. Government (eCFR). Maintenance recordkeeping content and approval-for-return-to-service requirements, including 43.9, 43.11, and Appendix B.
Federal Aviation Administration. FAA guidance on making and keeping maintenance records and acceptable recordkeeping practices.
European Union / EASA. Continuing airworthiness, maintenance records, CAMO responsibilities, and the airworthiness review process in the EASA system.
U.S. Government (eCFR). Records an owner or operator must keep, including total time in service, current status of life-limited parts, and AD compliance.
Frequently asked questions
How is a non-routine review different from a task-card review?
Task cards cover the planned work; non-routine cards cover the defects that planned work uncovers. This review follows each finding through its disposition, corrective action, and sign-off, which is where the evidence chain most often breaks on a mature engine.
Relevant glossary terms
Related pages
Where this fits
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