# NTSB Safety Recommendation P-73-024

**Citation:** P-73-024  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective:** 1973-06-18  
**Published:** 1973-06-18

THE NTSB RECOMMENDS THAT THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS GAS PIPING STANDARDS COMMITTEE: DEVELOP GUIDELINES TO ASSIST GAS PIPELINE OPERATORS IN ESTABLISHING EXCAVATION DAMAGE PREVENTION PROGRAMS.

## Document text

NTSB safety recommendation P-73-024.

THE NTSB RECOMMENDS THAT THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS GAS PIPING STANDARDS COMMITTEE: DEVELOP GUIDELINES TO ASSIST GAS PIPELINE OPERATORS IN ESTABLISHING EXCAVATION DAMAGE PREVENTION PROGRAMS.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1973-06-18

Adopted Date: 1973-06-07

Overall Date Closed: 1985-07-29

Synopsis: "SPECIAL STUDY - PREVENTION OF DAMAGE TO PIPELINES." THIS SPECIAL STUDY CONCERNS DAMAGE TO GAS AND LIQUID PIPELINES CAUSED BY EXCAVATION AND CONSTRUCTION ACTIVITIES, INCLUDING BLASTING.

Ntsbnumber: 80571

Report Number: PSS-73-01

Addressee Name: American Society of Mechanical Engineers

Addressee Status: Closed - Acceptable Action

Addressee Date Closed: 1985-07-29

Addressee Acronym: ASME

Addressee Organization Type: A-Associations

Communication Date: 1978-09-06

Communication Type: Official Correspondence

Communication Contents: ASME LETTER: ASME IS REVIEWING THIS RECOMMENDATION.

Addressee Acronym: ASME

Addressee Organization Type: A-Associations

Communication Date: 1973-07-24

Communication Type: Official Correspondence

Communication Contents: LETTER FROM ASME GAS PIPING STANDARDS COMMITTEE: THE AMERICAN GAS ASSOCIATION IS PUTTING TOGETHER A MASSIVE NEW RESEARCH PLANNING PROGRAM TO EARMARK RESEARCH NEEDS FOR THE SHORT TERM AND LONG TERM FUTURE, WITH FOREIGN PARTY DAMAGE TO PIPELINES AT THE TOP OF THE LIST.

Addressee Acronym: ASME

Addressee Organization Type: A-Associations

Communication Date: 1985-07-29

Communication Type: Official Correspondence

Addressee Acronym: ASME

Addressee Organization Type: A-Associations

Communication Date: 1978-05-01

Communication Type: Official Correspondence

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-73-024>
- Source ID: `ntsb-pipeline`
- SHA-256: `7968ff91671c8e4d62b1e1acbcea36eb1b50a2b3eabb164c1dd83e13add2eabf`
- Retrieved: 2026-08-20T04:57:24.741Z
- Exported: 2026-08-26T10:07:32.991Z
- Document slug: `ntsb-recommendation-p-73-024`

### Source metadata

```json
{
  "recordKind": "ntsb_safety_recommendation",
  "safetyRecommendationNumber": "P-73-024",
  "recommendationMode": "Pipeline",
  "topicMode": "Pipeline",
  "ntsbNumber": "80571",
  "priority": "CLASS II",
  "overallStatus": "Closed - Acceptable Action",
  "overallStatusAcronym": "CAA",
  "overallDateClosed": "1985-07-29",
  "lastModifiedDate": "2016-11-15",
  "reportNumber": "PSS-73-01",
  "reportUrl": "https://www.ntsb.gov/investigations/Pages/80571.aspx",
  "transmittalLetterUrl": "http://www.ntsb.gov/safety/safety-recs/recletters/P73_12_28.pdf",
  "addressees": [
    {
      "addresseeName": "American Society of Mechanical Engineers",
      "addresseeStatusAcronym": "CAA",
      "addresseeStatus": "Closed - Acceptable Action",
      "addresseeDateClosed": "1985-07-29",
      "addresseeDetails": [
        {
          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
          "isFromNtsb": false,
          "communicationDate": "1978-09-06",
          "communicationType": "Official Correspondence",
          "communicationContents": "ASME LETTER:  ASME IS REVIEWING THIS RECOMMENDATION."
        },
        {
          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
          "isFromNtsb": false,
          "communicationDate": "1973-07-24",
          "communicationType": "Official Correspondence",
          "communicationContents": "LETTER FROM ASME GAS PIPING STANDARDS COMMITTEE: THE AMERICAN GAS ASSOCIATION IS PUTTING TOGETHER A MASSIVE NEW RESEARCH PLANNING PROGRAM TO EARMARK RESEARCH NEEDS FOR THE SHORT TERM AND LONG TERM FUTURE, WITH FOREIGN PARTY DAMAGE TO PIPELINES AT THE TOP OF THE LIST."
        },
        {
          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
          "isFromNtsb": true,
          "communicationDate": "1985-07-29",
          "communicationType": "Official Correspondence",
          "communicationContents": ""
        },
        {
          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
          "isFromNtsb": true,
          "communicationDate": "1978-05-01",
          "communicationType": "Official Correspondence",
          "communicationContents": ""
        }
      ]
    }
  ],
  "jurisdiction": "US"
}
```