# NTSB Safety Recommendation P-74-021

**Citation:** P-74-021  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective:** 1974-03-11  
**Published:** 1974-03-11

THE NTSB RECOMMENDS THAT THE MISSOURI PUBLIC SERVICE COMPANY: EXPAND ITS EMERGENCY PROCEDURES TO INCLUDE THE ACTIONS TO BE TAKEN IN ALL TYPES OF EMERGENCIES.

## Document text

NTSB safety recommendation P-74-021.

THE NTSB RECOMMENDS THAT THE MISSOURI PUBLIC SERVICE COMPANY: EXPAND ITS EMERGENCY PROCEDURES TO INCLUDE THE ACTIONS TO BE TAKEN IN ALL TYPES OF EMERGENCIES.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1974-03-11

Adopted Date: 1974-02-27

Overall Date Closed: 1976-09-10

Synopsis: A gas explosion and fire occurred on December 9, 1972, in downtown Clinton, MO. Gas had leaked into a building from a cracked cast-iron main located behind the building. Missouri Public Service Company personnel arrived at the site of the reported leak 50 minutes before the explosion. Eight persons died, and seven others were injured.

Ntsbnumber: PLD73XR004

Report Number: PAR-74-03

Addressee Name: Missouri Public Service Company

Addressee Status: Closed--No Longer Applicable

Addressee Date Closed: 1976-09-10

Addressee Organization Type: P-Private Industry

Communication Date: 1975-02-25

Communication Type: Official Correspondence

Communication Contents: LETTER FROM MISSOURI PUBLIC SERVICE COMPANY: WRITTEN EMERGENCY PROCEDURES HAVE BEEN PREPARED BY THE COMPANY AND ARE DISCUSSED AT MONTHLY SAFETY MEETINGS. EACH DISTRICT IS RESPONSIBLE FOR TRAINING ITS FIELD PERSONNEL.

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-74-021>
- Source ID: `ntsb-pipeline`
- SHA-256: `ad11e09eb1a5a739c711b3cafecbc690733654202e0e6607ca5097e06236e068`
- Retrieved: 2026-08-20T04:57:24.741Z
- Exported: 2026-08-25T11:45:55.087Z
- Document slug: `ntsb-recommendation-p-74-021`

### Source metadata

```json
{
  "recordKind": "ntsb_safety_recommendation",
  "safetyRecommendationNumber": "P-74-021",
  "recommendationMode": "Pipeline",
  "topicMode": "Pipeline",
  "ntsbNumber": "PLD73XR004",
  "priority": "CLASS II",
  "overallStatus": "Closed - Acceptable Action",
  "overallStatusAcronym": "CAA",
  "overallDateClosed": "1976-09-10",
  "lastModifiedDate": "2016-11-15",
  "reportNumber": "PAR-74-03",
  "reportUrl": "https://www.ntsb.gov/investigations/Pages/PLD73XR004.aspx",
  "transmittalLetterUrl": "http://www.ntsb.gov/safety/safety-recs/recletters/P74_16_27.pdf",
  "addressees": [
    {
      "addresseeName": "Missouri Public Service Company",
      "addresseeStatusAcronym": "CNLA",
      "addresseeStatus": "Closed--No Longer Applicable",
      "addresseeDateClosed": "1976-09-10",
      "addresseeDetails": [
        {
          "addresseeAcronym": null,
          "addresseeOrganizationType": "P-Private Industry",
          "isFromNtsb": false,
          "communicationDate": "1975-02-25",
          "communicationType": "Official Correspondence",
          "communicationContents": "LETTER FROM MISSOURI PUBLIC SERVICE COMPANY: WRITTEN EMERGENCY PROCEDURES HAVE BEEN PREPARED BY THE COMPANY AND ARE DISCUSSED AT MONTHLY SAFETY MEETINGS. EACH DISTRICT IS RESPONSIBLE FOR TRAINING ITS FIELD PERSONNEL."
        }
      ]
    }
  ],
  "jurisdiction": "US"
}
```