{"operation":"document","citation":"P-74-025","title":"NTSB Safety Recommendation P-74-025","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1974-03-11","effective_on":"1974-03-11","summary":"THE NTSB RECOMMENDS THAT THE MISSOURI PUBLIC SERVICE COMPANY: DEVELOP A SECTIONALIZING PROGRAM OF ITS HIGH-PRESSURE DISTRIBUTION SYSTEM SO THAT PREPLANNED PROCEDURES ARE AVAILABLE TO ISOLATE ANY SECTION OF ITS SYSTEM IN AN EMERGENCY.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-74-025.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-74-025.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-74-025","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-74-025","body":"NTSB safety recommendation P-74-025.\n\nTHE NTSB RECOMMENDS THAT THE MISSOURI PUBLIC SERVICE COMPANY: DEVELOP A SECTIONALIZING PROGRAM OF ITS HIGH-PRESSURE DISTRIBUTION SYSTEM SO THAT PREPLANNED PROCEDURES ARE AVAILABLE TO ISOLATE ANY SECTION OF ITS SYSTEM IN AN EMERGENCY.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1974-03-11\n\nAdopted Date: 1974-02-27\n\nOverall Date Closed: 1976-09-10\n\nSynopsis: 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.\n\nNtsbnumber: PLD73XR004\n\nReport Number: PAR-74-03\n\nAddressee Name: Missouri Public Service Company\n\nAddressee Status: Closed--No Longer Applicable\n\nAddressee Date Closed: 1976-09-10\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1975-02-25\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: LETTER FROM MISSOURI PUBLIC SERVICE COMPANY: AT THE TIME OF THE CLINTON ACCIDENT THIS COMPANY HAD IN EXISTENCE A SECTIONALIZING PROGRAM. THIS PROGRAM IS BEING CONSTANTLY REVISED AND PRESENTLY CONSISTS OF EACH PLATTED DISTRIBUTION SYSTEM BEING DIVIDED INTO SHUTOFF ZONES, WITH ALL VALVES DESIGNATED ON SUCH PLATS, INCLUDING EMERGENCY VALVES.","truncated":false,"body_characters":1441}