# Metallurgical Group- Picture 17 Magnetic Particle Inspection (MPI) testing is performed by a qualified technician on (piece b) after grit blasting of the external surfaces at the NTSB Ashburn, Virginia facility.

**Citation:** DCA10MP007 docket item 20  
**Type / status:** incident / current  
**Agency:** National Transportation Safety Board  
**Effective:** Not stated  
**Published:** Not stated

DCA10MP007; docket item 20; Adobe PDF file.

## Document text

Metallurgical Group- Picture 17 Magnetic Particle Inspection (MPI) testing is performed by a qualified technician on (piece b) after grit blasting of the external surfaces at the NTSB Ashburn, Virginia facility. DCA10MP007 docket item 20. 1 page. 0 photograph references. Published media type: Adobe PDF file. Metadata only; the linked docket file is not mirrored.

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335738&FileExtension=.PDF&FileName=Metallurgical%20Group-%20Picture%2017%20Magnetic%20Particle%20Inspection%20(MPI)%20testing%20is%20performed%20by%20a%20qualified%20technician%20on%20(piece%20b)%20after%20grit%20blasting%20of%20the%20external%20surfaces%20at%20the%20NTSB%20Ashburn,%20Virginia%20facility.-Master.PDF>
- Source ID: `ntsb-dockets`
- SHA-256: `8d5669d3841ac31d9c99aa73547da9a649b61e68c38855de47e75e520814aad6`
- Retrieved: 2026-08-20T04:58:09.797Z
- Exported: 2026-08-23T04:51:07.677Z
- Document slug: `ntsb-docket-item-40335738`

### Source metadata

```json
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  "ntsbNumber": "DCA10MP007",
  "blobId": "40335738",
  "ordinal": 20,
  "pages": 1,
  "photos": 0,
  "publishedMediaType": "Adobe PDF file",
  "fileExtension": ".PDF",
  "fileName": "Metallurgical Group- Picture 17 Magnetic Particle Inspection (MPI) testing is performed by a qualified technician on (piece b) after grit blasting of the external surfaces at the NTSB Ashburn, Virginia facility.-Master.PDF",
  "docketUrl": "https://data.ntsb.gov/Docket/?NTSBNumber=DCA10MP007",
  "tableOfContentsUrl": "https://data.ntsb.gov/Docket/TOCPrintable?data=76766",
  "docketReportedMode": "Pipeline",
  "docketCreationDate": "2010-08-25",
  "docketLastModifiedDate": "2016-08-15",
  "docketPublicReleaseDate": "2012-05-22",
  "metadataOnly": true,
  "binaryMirrored": false,
  "caveat": "Docket item metadata and official link only. The title does not establish authorship, evidentiary weight, NTSB endorsement, legal effect, or a current regulatory finding; party submissions and evidence binaries are not mirrored.",
  "jurisdiction": "US"
}
```