Guidanceguidance
P-73-041
NTSB Safety Recommendation P-73-041
Current as of 1973-08-24 Government source
RegulusPipeline researchRegulusPipeline researchP-73-041
NTSB safety recommendation P-73-041.
THE NTSB RECOMMENDS THAT THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS GAS PIPING STANDARDS COMMITTEE: DEVELOP CRITERIA WHICH CAN BE USED BY GAS DISTRIBUTION OPERATORS FOR REDUCING THE POTENTIAL HAZARDS FROM BREAKS IN CAST-IRON MAINS. THE CRITERIA SHOULD CONSIDER REPLACEMENT OR REPAIR OF MAINS, BASED ON PIPE SIZE, GRAPHITIZATION, EXTERNAL LOADS, TRAFFIC, SOIL CONDITION AND STABILITY, AND GAS PRESSURE.
Priority: CLASS II
Overall Status: Closed - Acceptable Action
Issued Date: 1973-08-24
Adopted Date: 1973-08-16
Overall Date Closed: 1979-02-06
Synopsis: A GAS EXPLOSION OCCURRED ON AUGUST 31, 1972 IN THE ANNEX BUILDING OF AN ATLANTA, GA., HIGH SCHOOL. GAS HAD LEAKED INTO THE BUILDING FROM A CRACKED CAST-IRON MAIN LOCATED BENEATH THE STREET IN FRONT OF THE ANNEX. ATLANTA GAS LIGHT COMPANY (AGL) PERSONNEL ARRIVED AT THE LEAK SITE APPROXIMATELY 1 HOUR AFTER AGL WAS FIRST NOTIFIED OF THE LEAK AND APPROXIMATELY 1/2 HOUR BEFORE THE EXPLOSION. ONE PERSON DIED AND SEVEN OTHERS WERE INJURED AS A RESULT OF THE ACCIDENT.
Ntsbnumber: PLD72XR005
Report Number: PAR-73-03
Addressee Name: American Society of Mechanical Engineers
Addressee Status: Closed--No Longer Applicable
Addressee Date Closed: 1979-02-06
Addressee Acronym: ASME
Addressee Organization Type: A-Associations
Communication Date: 1973-09-18
Communication Type: Official Correspondence
Communication Contents: LETTER FROM CHAIRMAN OF ASME GAS PIPING STANDARDS COMMITTEE: THE AMERICAN GAS ASSOCIATION IS PUTTING TOGETHER A LONG RANGE RESEARCH PLANNING PROGRAM, BROKEN UP INTO FIVE MAJOR SECTORS OF INTEREST. ONE OF THE MAJOR AREAS INCLUDED FOR IMMEDIATE ATTENTION IS CAST IRON PERFORMANCE. WE ARE GIVING PARTICULAR CONSIDERATION TO METHODS OF DETECTING GRAPHITIZATION AND OTHER DEFECT AREAS PRIOR TO FAILURE. 4/76 - THE 1976 EDITION OF THE GUIDE WAS PUBLISHED AND INCLUDED THE RECOMMENDED MATERIAL. 9/6/78 - ASME LTR: GUIDE MATERIAL FOR THIS RECOMMENDATION WAS ADOPTED UNDER 192.703(B) AND APPEARED IN THE GUIDE IN 1975.
Addressee Acronym: ASME
Addressee Organization Type: A-Associations
Communication Date: 1976-05-01
Communication Type: Official Correspondence
This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.