# 2 - OPS - ATMOS PIGGING PROCEDURES

**Citation:** PLD21FR002 docket item 33  
**Type / status:** incident / current  
**Agency:** National Transportation Safety Board  
**Effective:** Not stated  
**Published:** Not stated

PLD21FR002; docket item 33; Text/Image.

## Document text

2 - OPS - ATMOS PIGGING PROCEDURES PLD21FR002 docket item 33. 6 pages. 0 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=13166153&FileExtension=pdf&FileName=AEC-APT-NTSB-000011-000016%20(Docket)%20(Pipeline%20Integrity%20Management%20Plan%20-%20Appendix%20R-%20Pigging%20Procedures)-Rel.pdf>
- Source ID: `ntsb-dockets`
- SHA-256: `7a8c5781e733b14e134b8e91f33e7ab8825e82f041c0fa451ea20939ab8fe988`
- Retrieved: 2026-08-20T04:58:09.797Z
- Exported: 2026-08-24T17:42:46.347Z
- Document slug: `ntsb-docket-item-13166153`

### Source metadata

```json
{
  "materialSubtype": "ntsb_docket_item_metadata",
  "ntsbNumber": "PLD21FR002",
  "blobId": "13166153",
  "ordinal": 33,
  "pages": 6,
  "photos": 0,
  "publishedMediaType": "Text/Image",
  "fileExtension": "pdf",
  "fileName": "AEC-APT-NTSB-000011-000016 (Docket) (Pipeline Integrity Management Plan - Appendix R- Pigging Procedures)-Rel.pdf",
  "docketUrl": "https://data.ntsb.gov/Docket/?NTSBNumber=PLD21FR002",
  "tableOfContentsUrl": "https://data.ntsb.gov/Docket/TOCPrintable?data=103363",
  "docketReportedMode": "Pipeline",
  "docketCreationDate": "2021-07-08",
  "docketLastModifiedDate": "2022-10-21",
  "docketPublicReleaseDate": "2022-03-10",
  "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"
}
```