CFM56 CAMO file
CFM56 engine airworthiness-review evidence and CAMO records review
A CFM56 airworthiness-review check tests whether the CAMO file behind the engine's continued-airworthiness status actually holds together. CAMO staff, records leads, and asset managers use it when review certificates are being relied on or open findings need to be closed. The work reads the review certificate against the CAMO records, the open-finding log, and the status the review was based on, then flags anything the certificate rests on that cannot be shown. You receive an annotated airworthiness-review file, a finding-by-finding status, and a plan to close what remains open.
When this review is needed
- A review certificate is being relied on and the CAMO file behind it has not been read.
- An open-finding log carries items that may or may not still be live.
- A CAMO handover means the incoming team must know what the outgoing review actually covered.
- A transfer needs the continued-airworthiness status shown to rest on real evidence.
The problem
A review certificate is a conclusion, and the CAMO records that justify it are not always as complete as the certificate implies. A records lead relying on a CFM56 airworthiness-review file inherits a set of findings, some closed and some carried forward, without a clear account of which were resolved and which were deferred into the next cycle. Until the file is read against its own findings, the certificate stands on trust rather than evidence.
What gets reviewed
- The review certificate read against the CAMO records that support it
- Every open finding classified as resolved, carried, or unsupported
- The status the review was based on checked against current source records
- AD and life-status conclusions in the file traced to their evidence
- Findings deferred into the next cycle identified and their basis noted
- A residual list of certificate conclusions that cannot be shown from the file
Scope this review
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What gets validated
- The review certificate's scope matches what the CAMO records actually cover
- Each finding shown closed has a resolving action and evidence in the file
- The AD and life status the review relied on agrees with the current source records
- Carried-forward findings have a recorded basis and a next-review disposition
- No conclusion in the certificate rests on a status figure the records cannot support
Evidence normally required
- The airworthiness-review certificate and its supporting CAMO file
- The open-finding log with resolution and carry-forward notes
- AD, Service Bulletin, and LLP status the review was based on
- Continued-airworthiness status reports for the engine
- Any prior review file or handover finding list
Common discrepancies
- A finding shown closed in the log with no resolving evidence in the file
- A review conclusion resting on a status figure the source records do not support
- Findings carried into the next cycle without a recorded basis
- An AD position the certificate relied on that the accomplishment evidence contradicts
What is at stake
If the CAMO file cannot support the review it produced, the continued-airworthiness status a buyer or successor CAMO relies on is weaker than it looks, and a finding thought closed can resurface at the next review. A gap discovered late in a CAMO handover forces the incoming team to redo work they assumed was settled, on an engine already in service.
Move from findings to resolution
Move from findings to a documented resolution path.
How the work runs
Read the certificate's basis
Set the review certificate against the CAMO records that are meant to support it.
Work the findings
Classify every open finding as resolved, carried, or unsupported and locate its evidence.
Trace the status
Confirm the AD and life status the review relied on against the current source records.
Mark the exceptions
Annotate conclusions the file cannot support and set out a closure plan.
What the buyer receives
- An annotated airworthiness-review file marking each conclusion as supported or open
- A finding-by-finding status separating resolved, carried, and unsupported items
- A closure plan for the conclusions the file cannot yet support
Who uses the output
- CAMO staff taking over the engine and needing to know what the last review covered
- Records teams confirming the continued-airworthiness status rests on evidence
- Asset managers relying on the review certificate in a transfer
How the work fits into the transaction or program
The airworthiness-review check draws on the AD, LLP, and deferred-item work as its evidence base and tests whether the review certificate is consistent with it. A file that holds together lets a redelivery binder or export package present the continued-airworthiness status without the successor having to rebuild the review from scratch.
Aircraft-specific considerations
A CFM56 airworthiness-review file leans on module build records, disk sheets, shop-visit releases, and installation history from a very large installed base, and successive CAMO arrangements across operators leave findings recorded under different conventions. The long service life means a current review often inherits carried-forward items from earlier cycles, and tracing those back to their original basis is part of confirming the certificate.
Jurisdiction-specific considerations
Continued-airworthiness review is structured differently under EASA CAMO arrangements than under FAA oversight, and a certificate issued in one framework does not read straight across to the other. The review notes which framework the file was produced under so a successor operating under a different one knows what the certificate does and does not represent.
Regulatory limits
The review reports whether the CAMO file supports the airworthiness-review conclusions it produced. It does not issue or extend a review certificate, make an airworthiness determination, or act as the CAMO of record, and it does not replace the review the responsible CAMO must perform.
What this review does not cover
- Issuing or extending any airworthiness-review certificate
- Acting as the continued-airworthiness management organization of record
- Resolving open findings through physical maintenance action
Specific to this review
- A CFM56 review certificate is a conclusion, and its CAMO file can be thinner than the certificate implies, so the review reads the file against its own findings.
- Findings deferred into the next cycle are easy to lose track of across CAMO handovers, and an item thought closed can resurface at the following review.
- A conclusion resting on a status summary rather than source evidence is a common weak point, because the summary can be current while the underlying records are not.
Sources
European Union / EASA. Continuing airworthiness, maintenance records, CAMO responsibilities, and the airworthiness review process in the EASA system.
International Civil Aviation Organization. International standards for the airworthiness of aircraft and the framework states use for type and continuing airworthiness.
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
Is this the same as performing a new airworthiness review?
No. A new review is the responsible CAMO's work and results in a certificate. This check tests whether the existing review file actually supports the certificate already issued, and it reports the gaps rather than issuing anything.
Relevant glossary terms
Related pages
Where this fits
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