A steel structure repair evidence checklist helps EPC buyers verify that a repaired item is ready for NCR closeout, shipment release, or site installation. A repair should not be closed only because a supplier says it is finished. The buyer needs evidence showing the original defect, approved repair method, repair execution, final inspection, and release status.
This checklist is useful after fabrication repair, coating repair, dimensional correction, welding repair, site damage repair, packing damage repair, or any NCR disposition that requires correction before acceptance.
1. Start with the original defect record
Repair evidence should begin with the defect that triggered the repair. The file should identify the NCR, inspection comment, quality hold, site issue, or delivery damage report. It should also identify the affected component mark, package, drawing revision, location, and requirement that was not met.
If the original defect record is unclear, the repair evidence will also be weak. The buyer should not approve closeout until the repaired item can be linked back to the exact defect and affected scope.
2. Confirm repair method approval
The repair method should be approved before the supplier or site team performs the repair, especially when the work affects welding, structural geometry, connection fit, coating system, galvanizing repair, or material traceability. The approval may come from the buyer, project quality engineer, structural engineer, owner representative, or approved procedure depending on the project rules.
| Repair type | Approval evidence to request |
|---|---|
| Weld repair | Approved repair method, WPS reference, welder qualification if required, NDT requirement. |
| Coating repair | Surface preparation method, compatible paint, DFT requirement, curing condition. |
| Dimensional correction | Engineering comment, tolerance reference, re-measurement plan. |
| Marking or packing correction | Corrected mark list, label photo, packing list update. |
| Site damage repair | Site repair request, method approval, before and after photos. |
3. Capture before, during, and after photos
Photo evidence should show more than the final condition. A complete record usually includes the original defect, preparation stage, repair activity, and final accepted condition. Photos should include the component mark, location, scale reference when useful, and date or file naming that connects to the repair record.
For coating and surface repairs, photos should show cleaning, surface preparation, primer or repair material application, final surface, and any DFT measurement evidence. For dimensional repair, photos should be supported by measurement records rather than appearance only.
4. Attach inspection and test records
Repair evidence should include the inspection records required by the repair method. This may include dimensional re-check, weld visual inspection, NDT report, coating DFT report, adhesion test where required, galvanizing thickness check, bolt package verification, or packing re-check.
The record should state whether the result passed, failed, or remains conditional. If the repair fails re-inspection, the buyer should keep the item open and require a new disposition decision.
5. Link evidence to NCR closeout
If the repair is related to an NCR, the repair evidence should support the NCR closeout. The NCR package should show the original nonconformance, approved disposition, repair method, evidence of completed work, re-inspection result, final release decision, and signatures.
Do not close an NCR with only a final photo if the required method, inspection, or approval record is missing. A complete closeout package reduces disputes when the same item is reviewed during shipment, site receiving, or owner handover.
6. Confirm the repaired item is released
Repair completion and release are different. A repaired item may still need re-inspection, document update, owner approval, or site instruction before it can be used or shipped. The repair evidence checklist should include the final release status: released, released with condition, transferred to site, held, rejected, or pending evidence.
| Release status | Evidence required |
|---|---|
| Released | Final inspection result and required signatures. |
| Released with condition | Condition owner, due date, closeout evidence, and acceptance authority. |
| Transferred to site | Site team instruction and remaining action record. |
| Held | Hold reason, responsible party, next action, and target date. |
| Rejected | Replacement or disposal decision and material control update. |
7. Update documents after repair
Some repairs require document updates. The buyer should check whether the inspection report, NCR register, packing list, mark list, coating report, material control log, handover file, or site issue log has been updated. If the repair changes a dimension, connection, coating area, or component status, the final document package should make that clear.
Repair evidence that remains only in email or chat is hard to retrieve later. Store the evidence in the quality package with clear file names and references.
8. Check repeated repair patterns
Repair evidence should also support supplier performance review. If the same defect type keeps needing repair, record the pattern. Repeated coating scratches, recurring dimensional corrections, repeated packing damage, or repeated label corrections may show weak process control.
When the pattern repeats, the buyer should request corrective action, not only accept item-by-item repair evidence.
9. Use a repair evidence scorecard
A scorecard helps decide whether the repair package is strong enough for release.
| Evidence area | Suggested weight | Review point |
|---|---|---|
| Defect identity | 15% | NCR, component mark, location, drawing, and scope are clear. |
| Method approval | 20% | Repair method was approved by the correct authority. |
| Photo evidence | 20% | Before, during, and after photos show the repair trail. |
| Inspection record | 25% | Required tests and re-inspection records are complete. |
| Release status | 10% | Final status is signed and unambiguous. |
| Document update | 10% | NCR, register, and quality package are updated. |
Warning signs
- Repair is claimed complete but the approved method is missing.
- Photos show only the final condition, not the original defect or repair process.
- Re-inspection records are missing after structural, dimensional, weld, or coating repair.
- The repaired component mark is not visible in the evidence file.
- NCR is closed while release status is still pending.
- The same defect type requires repair repeatedly without corrective action.
Buyer note
Good repair evidence should tell the full story: what was defective, how the repair was approved, what work was done, how the result was inspected, who accepted it, and whether the item is released. This makes repair closeout defensible for shipment, site installation, and owner handover.