Heavy widebody records
Boeing 747 aircraft records review
A 747 records review confirms that a heavy four-engine widebody's conversion, structural, and power-plant records support the status a sale, a conversion, or a continued-service decision relies on. It is used before a transaction, a passenger-to-freighter conversion, or a continued-operation review. It reviews the conversion supplemental type certificate embodiment and its continued-airworthiness data, the aging-aircraft structural status, the four power-plant positions, and the major repair history. You receive a status reconciliation, a discrepancy list against the records, and the evidence needed to close each item.
When this review is needed
- A passenger aircraft has been converted to freight and the conversion records must support the configuration.
- A heavy widebody is being assessed for continued service against its aging-aircraft program.
- Four power-plant positions are being valued and each needs its own status trace.
- A sale references a conversion and structural standard that has to be confirmed across the airframe.
The problem
A converted heavy widebody carries a supplemental type certificate for the freighter modification, an aging-aircraft structural program, and four power-plant positions, so the records combine a large baseline with a conversion overlay. The conversion changes the structure and the continued-airworthiness obligations, and the data supporting it has to be present and consistent. When the conversion embodiment and the four engine positions are not each reconciled, a status summary can read as settled while the supporting evidence is incomplete.
What gets reviewed
- Conversion supplemental type certificate embodiment and its continued-airworthiness data
- Aging-aircraft structural inspection and corrosion-prevention program status
- Airframe AD compliance status with effectivity for the serial number
- Four power-plant positions reconciled position by position
- Major repair records with their approval basis and substantiation data
- Life-limited part status across engines and airframe structure
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
- The conversion supplemental type certificate is embodied with its continued-airworthiness data present
- Structural tasks under the aging-aircraft program trace to accomplishment evidence
- Airframe AD compliance is supported by accomplishment evidence with effectivity shown
- Each of the four engine positions traces to release and status evidence
- Major repairs carry their approval basis and substantiation data
- The conversion-driven structural changes reconcile with the post-conversion inspection program
Evidence normally required
- Supplemental type certificate documents for the conversion and its continued-airworthiness data
- Structural program status and accomplishment records for the aging-aircraft tasks
- Airframe AD and SB status reports with effectivity
- Engine status lists for each position with supporting documents
- Major repair dossiers with approval and substantiation data
Common discrepancies
- A conversion embodiment recorded without its continued-airworthiness data
- Aging-aircraft structural tasks shown as complete without accomplishment evidence
- An engine position whose status does not reconcile with its release documents
- A major repair recorded without the approval or substantiation data behind it
- A post-conversion inspection task that the program does not show as picked up
What is at stake
A conversion accepted without its continued-airworthiness data leaves the new obligations resting on documents that cannot be produced, which can ground a continued-service plan. A power-plant position misread on the aggregate status can carry a shop visit the buyer did not price into the deal.
How the work runs
Map the conversion overlay
Lay out the freighter supplemental type certificate, its continued-airworthiness data, and the structural tasks it adds for this serial number.
Reconcile the base records
Tie the aging-aircraft structural program, the AD status, and the four power-plant positions to their accomplishment and release evidence.
Register discrepancies
Structure each finding with its source document, the area or position it touches, and its effect on the decision.
Map closure
Recommend a closure path and responsible party so the decision can proceed or be driven to resolution.
What the buyer receives
- A status reconciliation covering conversion, structure, AD position, and four engines
- A conversion data note confirming the continued-airworthiness obligations are supported
- A discrepancy list mapped to the records standard the decision relies on
- A closure path for each finding with the responsible party identified
Who uses the output
- Continuing-airworthiness teams assessing the converted configuration
- Acquisition teams pricing the airframe and its four engines
- Records teams assembling the conversion and structural trace for the deal
How the work fits into the transaction or program
The review supports a transaction, a conversion, or a continued-service decision by reconciling the conversion overlay and the four power-plant positions against the base records and the accomplishment evidence. It feeds the data room and the discrepancy register for the decision.
Start with a single asset
Start with a single tail and expand once the workflow is proven.
Aircraft-specific considerations
A heavy widebody of this type often carries a freighter conversion supplemental type certificate over a large aging-aircraft baseline, plus four power-plant positions. The review checks the conversion data and the post-conversion inspection program alongside the base records, because the modification changes both the structure and the continued-airworthiness obligations.
Jurisdiction-specific considerations
Where the conversion, repairs, or engines have crossed authorities, the approval basis and the continued-airworthiness data have to line up with the receiving authority. A supplemental type certificate accepted under one authority is not automatically accepted under another.
Regulatory limits
The review confirms records completeness, consistency, and traceability across the conversion, structure, and engines. It does not approve the conversion, issue an airworthiness determination, or guarantee acceptance for continued service.
What this review does not cover
- Physical or non-destructive inspection of the airframe or engines
- Conversion design, approval, or substantiation work
- Any airworthiness or continued-service determination
Specific to this review
- A converted heavy widebody combines a large airframe baseline with a freighter conversion overlay, so the supplemental type certificate data is checked alongside the base records.
- The conversion changes the structure and the continued-airworthiness obligations, so its supporting data has to be present and consistent, not assumed.
- Value spreads across four power-plant positions, so each engine is reconciled separately rather than rolled into an airframe status.
- The post-conversion inspection program is reconciled against the modification, because the conversion can add structural tasks the base program never carried.
Sources
U.S. Government (eCFR). The legal basis for issuing and enforcing Airworthiness Directives on U.S.-registered products.
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.
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 acceptance criteria for electronic recordkeeping systems and electronic signatures.
Frequently asked questions
What does a conversion add to a records review?
A freighter conversion changes the structure and adds continued-airworthiness obligations through its supplemental type certificate. The review checks that the conversion data is present and that the post-conversion inspection program picks up the tasks the modification introduces.
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.
Walk through your situation with an engineer who has done this work.