# NTSB Safety Recommendation P-76-102

**Citation:** P-76-102  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective:** 1977-01-17  
**Published:** 1977-01-17

REVISE THE GUIDE FOR GAS TRANSMISSION AND DISTRIBUTION SYSTEMS, APPENDIX G-11 TO INCLUDE INFORMATION APPROPRIATE TO HEAVIER-THAN-AIR GASES WHICH WILL GUIDE OPERATORS OF SYSTEMS TRANSPORTING THESE GASES IN THE SELECTION OF GAS LEAKAGE DETECTION TECHNIQUES AND PROCEDURES.

## Document text

NTSB safety recommendation P-76-102.

REVISE THE GUIDE FOR GAS TRANSMISSION AND DISTRIBUTION SYSTEMS, APPENDIX G-11 TO INCLUDE INFORMATION APPROPRIATE TO HEAVIER-THAN-AIR GASES WHICH WILL GUIDE OPERATORS OF SYSTEMS TRANSPORTING THESE GASES IN THE SELECTION OF GAS LEAKAGE DETECTION TECHNIQUES AND PROCEDURES.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1977-01-17

Adopted Date: 1976-12-17

Overall Date Closed: 1985-07-29

Synopsis: ON AUGUST 13, 1976, A FLASH FIRE IN THE BASEMENT OF A HOUSE AT 243 UNION STREET IN BANGOR, MAINE, KILLED ONE GAS COMPANY EMPLOYEE, BURNED TWO OTHER EMPLOYEES, AND CAUSED MINOR DAMAGE TO THE HOUSE.

Ntsbnumber: PLD77XR001

Report Number: None

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: 1977-01-26

Communication Type: Official Correspondence

Communication Contents: LTR. FROM ASME GAS PIPING STANDARDS COMMITTEE: ASME HAS INITIATED A MAJOR PROGRAM TO DEVELOP GUIDELINES MATERIAL FOR THE INCLUSION OF HEAVIER-THAN-AIR SYSTEMS IN OUR APPENDIX G-11.

Addressee Acronym: ASME

Addressee Organization Type: A-Associations

Communication Date: 1985-07-29

Communication Type: Official Correspondence

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-76-102>
- Source ID: `ntsb-pipeline`
- SHA-256: `d537a072f7173124d993068fd62c7e80d9264769e10fc97c3e7bcf8ead9f84dc`
- Retrieved: 2026-08-20T04:57:24.741Z
- Exported: 2026-08-24T13:14:06.936Z
- Document slug: `ntsb-recommendation-p-76-102`

### Source metadata

```json
{
  "recordKind": "ntsb_safety_recommendation",
  "safetyRecommendationNumber": "P-76-102",
  "recommendationMode": "Pipeline",
  "topicMode": "Pipeline",
  "ntsbNumber": "PLD77XR001",
  "priority": "CLASS II",
  "overallStatus": "Closed - Acceptable Action",
  "overallStatusAcronym": "CAA",
  "overallDateClosed": "1985-07-29",
  "lastModifiedDate": "2016-11-15",
  "reportNumber": "None",
  "reportUrl": null,
  "transmittalLetterUrl": "http://www.ntsb.gov/safety/safety-recs/recletters/P76_102.pdf",
  "addressees": [
    {
      "addresseeName": "American Society of Mechanical Engineers",
      "addresseeStatusAcronym": "CAA",
      "addresseeStatus": "Closed - Acceptable Action",
      "addresseeDateClosed": "1985-07-29",
      "addresseeDetails": [
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          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
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          "communicationDate": "1977-01-26",
          "communicationType": "Official Correspondence",
          "communicationContents": "LTR. FROM ASME GAS PIPING STANDARDS COMMITTEE: ASME HAS INITIATED A MAJOR PROGRAM TO DEVELOP GUIDELINES MATERIAL FOR THE INCLUSION OF HEAVIER-THAN-AIR SYSTEMS IN OUR APPENDIX G-11."
        },
        {
          "addresseeAcronym": "ASME",
          "addresseeOrganizationType": "A-Associations",
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          "communicationDate": "1985-07-29",
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          "communicationContents": ""
        }
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  "jurisdiction": "US"
}
```