# NTSB Safety Recommendation P-74-043

- **operation:** document
- **citation:** P-74-043
- **title:** NTSB Safety Recommendation P-74-043
- **source type:** guidance
- **agency:** National Transportation Safety Board
- **status:** guidance
- **official:** true
- **published on:** 1974-10-24
- **effective on:** 1974-10-24
- **summary:** THE NTSB RECOMMENDS THAT THE AMERICAN GAS ASSOCIATION: GIVE A HIGH PRIORITY TO THE PROBLEM OF SOIL ADSORPTION OF ODORANT COMPOUNDS IN ITS PLANNED RESEARCH TO DEVELOP AN IMPROVED ODORANT. (URGENT)
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- **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-74-043
**body:**

NTSB safety recommendation P-74-043.

THE NTSB RECOMMENDS THAT THE AMERICAN GAS ASSOCIATION: GIVE A HIGH PRIORITY TO THE PROBLEM OF SOIL ADSORPTION OF ODORANT COMPOUNDS IN ITS PLANNED RESEARCH TO DEVELOP AN IMPROVED ODORANT. (URGENT)

Priority: CLASS I

Overall Status: Closed - Acceptable Action

Issued Date: 1974-10-24

Adopted Date: 1974-10-24

Overall Date Closed: 1983-03-31

Synopsis: ON JUNE 23, 1973, A SERIES OF EXPLOSIONS, FOLLOWED BY FIRE, OCCURRED AT 12321 WELLING LANE IN BOWIE, MARYLAND. THREE OCCUPANTS OF THE HOUSE WERE KILLED, AND A FOURTH WAS INJURED; THE HOUSE WAS BADLY DAMAGED. HOUSES IN A FIVE-BLOCK AREA WERE EVACUATED.

Ntsbnumber: PLD73XR006

Report Number: PAR-74-05

Addressee Name: American Gas Association

Addressee Status: Closed--No Longer Applicable

Addressee Date Closed: 1983-03-31

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1975-03-31

Communication Type: Official Correspondence

Communication Contents: PHONE CONVERSATION WITH THE AMERICAN GAS ASSOCIATION ON 3/31/75: ON MARCH 19, 1975, THE AMERICAN GAS ASSOCIATION (AGA) AUTHORIZED $170,000 FOR THE FIRST YEAR OF A THREE YEAR STUDY OF THE PROBLEM OF GAS ODORIZATION.

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1983-01-26

Communication Type: Official Correspondence

Communication Contents: GAS RESEARCH INSTITUTE LETTER: THIS RECOMMENDATION CALLED FOR THE DEVELOPMENT OF IMPROVED ODORANTS AND ODORANT MEASUREMENT TECHNIQUES AND A BETTER UNDERSTANDING OF ODORANT ADSORPTON BY SOILS. A.G.A. INITIATED SUCH A STUDY WITH ARTHUR D. LITTLE, INC., IN 1975. THIS STUDY WAS CONTINUED AND ITS SCOPE EXPANDED UNDER GRI SPONSORSHIP AFTER GRI BECAME THE OFFICIAL R&D ARM OF THE GAS INDUSTRY. THE FOLLOWING IS A SUMMARY OF OUR RESULTS AND CONCLUSIONS TO DATE: THE PROPENSITIES OF GAS ODORANTS TO BE ABSORBED BY VARIOUS CLAYS AND TO REACT WITH PIPE WALL MATERIALS WERE THOROUGHLY INVESTIGATED. DYNAMIC LABORATORY METHODS WERE DEVELOPED FOR TESTING BOTH SOIL/ODORANT AND PIPE/ODORANT INTERACTIONS. WE FEEL THAT WITH THESE STUDIES, A.G.A. AND GRI HAVE COMPLIED WITH NTSB RECOMMENDATIONS NO. P-74-43 AND P-74-45.

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1979-01-02

Communication Type: Official Correspondence

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1979-10-31

Communication Type: Official Correspondence

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1983-03-31

Communication Type: Official Correspondence
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