# NTSB Safety Recommendation P-74-056

**Citation:** P-74-056  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective:** 1974-11-11  
**Published:** 1974-11-11

THE NTSB RECOMMENDS THAT THE OFFICE OF PIPELINE SAFETY OF THE DEPARTMENT OF TRANSPORTATION REQUIRE THE MID AMERICA PIPE LINE COMPANY TO: REEVALUATE THEIR TRAINING PROGRAM FOR INSPECTORS AND THEIR INSPECTION PROCEDURES UNDER 49 CFR 195.204, INSPECTION-GENERAL, TO INCREASE THE PROBABILITY THAT DAMAGE TO THEIR PIPELINES BY OUTSIDE PARTIES IS PREVENTED OR DETECTED AND REPORTED.

## Document text

NTSB safety recommendation P-74-056.

THE NTSB RECOMMENDS THAT THE OFFICE OF PIPELINE SAFETY OF THE DEPARTMENT OF TRANSPORTATION REQUIRE THE MID AMERICA PIPE LINE COMPANY TO: REEVALUATE THEIR TRAINING PROGRAM FOR INSPECTORS AND THEIR INSPECTION PROCEDURES UNDER 49 CFR 195.204, INSPECTION-GENERAL, TO INCREASE THE PROBABILITY THAT DAMAGE TO THEIR PIPELINES BY OUTSIDE PARTIES IS PREVENTED OR DETECTED AND REPORTED.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1974-11-11

Adopted Date: 1974-11-11

Overall Date Closed: 1978-12-12

Synopsis: ON DECEMBER 6, 1973, A PIPELINE RUPTURED IN A RURAL AREA IN KANSAS, AND RELEASED 2,138 BARRELS OF ANHYDROUS AMMONIA, A VOLATILE, TOXIC MATERIAL. TWO PERSONS WHO HAD DRIVEN THROUGH THE AMMONIA VAPORS WERE HOSPITALIZED WITH BURNS TO THE EYES, NOSE, THROAT, AND LUNGS.

Keywords: Evacuation, Training and Education

Ntsbnumber: PLD74XR002

Report Number: PAR-74-06

Addressee Name: RSPA

Addressee Status: Closed - Acceptable Action

Addressee Date Closed: 1978-12-12

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1975-01-21

Communication Type: Official Correspondence

Communication Contents: MEMO FROM OFFICE OF PIPELINE SAFETY: THE RECOMMENDATIONS WILL BE INCLUDED IN THE APPROPRIATE NOTICES OF PROPOSED RULE MAKING THAT ARE ISSUED FOR THE PLANNED REVISION OF PART 195. 8/4/78 - LETTER FROM MAPCO STATING THAT THE TRAINING PROGRAM FOR INSPECTORS HAS BEEN REEVALUATED AND ADDITIONAL TRAINING INITIATED.

Addressee Acronym: RSPA

Addressee Organization Type: G-Federal Government

Communication Date: 1978-12-12

Communication Type: Official Correspondence

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-74-056>
- Source ID: `ntsb-pipeline`
- SHA-256: `d8f5c516deda51b0710a1136a9f4cc5728e8d14eaef5466d46a1a5de9f2c7625`
- Retrieved: 2026-08-20T04:57:24.741Z
- Exported: 2026-08-23T10:28:28.033Z
- Document slug: `ntsb-recommendation-p-74-056`

### Source metadata

```json
{
  "recordKind": "ntsb_safety_recommendation",
  "safetyRecommendationNumber": "P-74-056",
  "recommendationMode": "Pipeline",
  "topicMode": "Pipeline",
  "ntsbNumber": "PLD74XR002",
  "priority": "CLASS II",
  "overallStatus": "Closed - Acceptable Action",
  "overallStatusAcronym": "CAA",
  "overallDateClosed": "1978-12-12",
  "lastModifiedDate": "2016-11-15",
  "reportNumber": "PAR-74-06",
  "reportUrl": "https://www.ntsb.gov/investigations/Pages/PLD74XR002.aspx",
  "transmittalLetterUrl": "http://www.ntsb.gov/safety/safety-recs/recletters/P74_50_58.pdf",
  "addressees": [
    {
      "addresseeName": "RSPA",
      "addresseeStatusAcronym": "CAA",
      "addresseeStatus": "Closed - Acceptable Action",
      "addresseeDateClosed": "1978-12-12",
      "addresseeDetails": [
        {
          "addresseeAcronym": "RSPA",
          "addresseeOrganizationType": "G-Federal Government",
          "isFromNtsb": false,
          "communicationDate": "1975-01-21",
          "communicationType": "Official Correspondence",
          "communicationContents": "MEMO FROM OFFICE OF PIPELINE SAFETY: THE RECOMMENDATIONS WILL BE INCLUDED IN THE APPROPRIATE NOTICES OF PROPOSED RULE MAKING THAT ARE ISSUED FOR THE PLANNED REVISION OF PART 195. 8/4/78 - LETTER FROM MAPCO STATING THAT THE TRAINING PROGRAM FOR INSPECTORS HAS BEEN REEVALUATED AND ADDITIONAL TRAINING INITIATED."
        },
        {
          "addresseeAcronym": "RSPA",
          "addresseeOrganizationType": "G-Federal Government",
          "isFromNtsb": true,
          "communicationDate": "1978-12-12",
          "communicationType": "Official Correspondence",
          "communicationContents": ""
        }
      ]
    }
  ],
  "jurisdiction": "US"
}
```