# Appendix Z: CGA DIRT Analysis of Excavation Damage Statistics 2009

**Citation:** DCA10FP004 docket item 42  
**Type / status:** incident / current  
**Agency:** National Transportation Safety Board  
**Effective:** Not stated  
**Published:** Not stated

DCA10FP004; docket item 42; Adobe PDF file.

## Document text

Appendix Z: CGA DIRT Analysis of Excavation Damage Statistics 2009 DCA10FP004 docket item 42. 24 pages. 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=40351824&FileExtension=.PDF&FileName=Appendix%20Z%3A%20CGA%20DIRT%20Analysis%20of%20Excavation%20Damage%20Statistics%202009-Master.PDF>
- Source ID: `ntsb-dockets`
- SHA-256: `ed85a27a75b5869bee93b8b23f75e9652a8acca07d0908a62909edfd83716029`
- Retrieved: 2026-08-20T04:58:09.797Z
- Exported: 2026-08-25T16:31:56.389Z
- Document slug: `ntsb-docket-item-40351824`

### Source metadata

```json
{
  "materialSubtype": "ntsb_docket_item_metadata",
  "ntsbNumber": "DCA10FP004",
  "blobId": "40351824",
  "ordinal": 42,
  "pages": 24,
  "photos": 0,
  "publishedMediaType": "Adobe PDF file",
  "fileExtension": ".PDF",
  "fileName": "Appendix Z: CGA DIRT Analysis of Excavation Damage Statistics 2009-Master.PDF",
  "docketUrl": "https://data.ntsb.gov/Docket/?NTSBNumber=DCA10FP004",
  "tableOfContentsUrl": "https://data.ntsb.gov/Docket/TOCPrintable?data=76236",
  "docketReportedMode": "Pipeline",
  "docketCreationDate": "2010-06-14",
  "docketLastModifiedDate": "2015-10-19",
  "docketPublicReleaseDate": "2013-10-21",
  "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"
}
```