# 4-MATERIALS LABORATORY FACTUAL REPORT 25-026

**Citation:** PLD25FR001 docket item 21  
**Type / status:** incident / current  
**Agency:** National Transportation Safety Board  
**Effective:** Not stated  
**Published:** Not stated

PLD25FR001; docket item 21; Text/Image.

## Document text

4-MATERIALS LABORATORY FACTUAL REPORT 25-026 PLD25FR001 docket item 21. 17 pages. 15 photograph references. Published media type: Text/Image. Metadata only; the linked docket file is not mirrored.

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/Docket/Document/docBLOB?ID=19398083&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2025-026-Rel.pdf>
- Source ID: `ntsb-dockets`
- SHA-256: `88d440ab3bcd1022b2714cc5a2693773dd91c2fc86a141f546e79859e5d46706`
- Retrieved: 2026-08-20T04:58:09.797Z
- Exported: 2026-08-22T20:16:27.921Z
- Document slug: `ntsb-docket-item-19398083`

### Source metadata

```json
{
  "materialSubtype": "ntsb_docket_item_metadata",
  "ntsbNumber": "PLD25FR001",
  "blobId": "19398083",
  "ordinal": 21,
  "pages": 17,
  "photos": 15,
  "publishedMediaType": "Text/Image",
  "fileExtension": "pdf",
  "fileName": "Materials Laboratory Factual Report 25-026-Rel.pdf",
  "docketUrl": "https://data.ntsb.gov/Docket/?NTSBNumber=PLD25FR001",
  "tableOfContentsUrl": "https://data.ntsb.gov/Docket/TOCPrintable?data=195464",
  "docketReportedMode": "Pipeline",
  "docketCreationDate": "2025-08-22",
  "docketLastModifiedDate": "2026-04-07",
  "docketPublicReleaseDate": "2025-10-23",
  "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"
}
```