What Should Be Included in the Final Manufacturing Data Record for Tower Internals?
The VDRL defines what documents the supplier must produce throughout the project.
The Manufacturing Data Record, or MDR, brings the relevant final records together after manufacturing is complete.
The MDR should answer one long-term question:
What exactly was manufactured, inspected, accepted, and shipped?
Final Approved Drawings
The MDR should include the final relevant drawing revisions.
Depending on the project, these may include:
- GA;
- fabrication drawings;
- segmentation drawings;
- installation drawings;
- as-built drawings.
The final status should be obvious.
Material Records
Material documentation may include:
- MTC;
- alloy certificate;
- resin declaration;
- ceramic COA;
- raw-material batch information.
The documentation should correspond to the actual delivered goods according to the project traceability requirement.
ITP
A completed ITP can show:
- required inspections;
- hold/witness points;
- final status;
- sign-off.
It acts as a roadmap to the supporting quality records.
Dimensional Inspection Reports
For custom internals, the MDR may include actual measurements for:
- OD;
- height;
- interface dimensions;
- nozzle position;
- support geometry.
These provide evidence of manufacturing conformity.
PMI and NDT
Where required, include the relevant:
- PMI reports;
- penetrant test reports;
- weld inspection records;
- other NDT.
These should identify the tested component.
Functional Testing
Product-specific records may include:
- distributor water test;
- leak test;
- shop trial assembly;
- mechanical test.
The report should identify the test condition and result.
Welding Records
For welded internals, the final file may include:
- WPS;
- PQR;
- welder qualification;
- weld map;
- consumable information.
The extent depends on the PO.
NCRs and Concessions
Closed NCRs and approved concessions may need to remain in the MDR.
Removing them can create a false impression that the equipment exactly matched every original requirement.
Permanent quality records should reflect the real as-built condition.
Certificate of Conformity
A final CoC can confirm that the supplier considers the goods compliant with:
the PO and approved project requirements,
subject to any formally accepted concessions.
Packing and Release Records
Depending on project requirements, include:
- final packing list;
- inspection release note;
- TPI release;
- shipment release.
Document Index
The MDR should begin with a controlled index.
Typical fields include:
- document number;
- title;
- revision;
- date;
- status.
This dramatically improves usability.
Digital Structure Matters
A 500-page MDR with random filenames can still be difficult to use.
Folders and file names should allow future engineers to locate:
drawings, materials, tests, NCRs, and shipment records quickly.
This becomes even more important as AI systems are increasingly used to search engineering archives.
Engineering Takeaway
The MDR is the permanent manufacturing-quality record of the delivered tower internals.
It should connect final design, material, inspection, testing, accepted deviations, conformity, and shipment release into one traceable archive.