{"operation":"document","citation":"P-81-003","title":"NTSB Safety Recommendation P-81-003","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1981-05-13","effective_on":"1981-05-13","summary":"THE NTSB RECOMMENDS THAT THE UNION LIGHT, HEAT AND POWER COMPANY: INCORPORATE A SPECIFIC REQUIREMENT FOR CURB BOX INSPECTIONS IN THE COMPANY'S ANNUAL GAS METER/REGULATOR INSPECTIONS, IN ACCORDANCE WITH THE KENTUCKY ENERGY REGULATORY COMMISSION REGULATIONS.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-003.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-003.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-81-003","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-81-003","body":"NTSB safety recommendation P-81-003.\n\nTHE NTSB RECOMMENDS THAT THE UNION LIGHT, HEAT AND POWER COMPANY: INCORPORATE A SPECIFIC REQUIREMENT FOR CURB BOX INSPECTIONS IN THE COMPANY'S ANNUAL GAS METER/REGULATOR INSPECTIONS, IN ACCORDANCE WITH THE KENTUCKY ENERGY REGULATORY COMMISSION REGULATIONS.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1981-05-13\n\nAdopted Date: 1981-04-28\n\nOverall Date Closed: 1983-02-02\n\nSynopsis: ON OCTOBER 9, 1980, A 2-INCH-DIAMETER COMPRESSION COUPLING LOCATED ON THE UPSTREAM SIDE OF A GAS METER SET ASSEMBLY IN THE BOILERROOM OF THE SIMON KENTON HIGH SCHOOL IN INDEPENDENCE, KENTUCKY, PULLED OUT OF ITS CONNECTION WITH A 2-INCH-DIAMETER GAS SERVICE LINE. NATURAL GAS AT 165-PSIG PRESSURE ESCAPED THROUGH THE 2-INCH-DIAMETER OPENING AND, SECONDS LATER, EXPLODED AND BURNED. A BASEMENT WALL WAS BLOWN DOWN, AN ADJACENT CLASSROOM WAS DAMAGED, AND ONE STUDENT WAS KILLED. ABOUT 30 MINUTES LATER, A SECOND EXPLOSION OCCURED, WHICH INJURED 37 PERSONS AND EXTENSIVELY DAMAGED THE SHCOOL. THE GAS SERVICE LINE WAS CONNECTED TO A 4-INCH-DIAMETER GAS MAIN OWNED BY THE UNION LIGHT, HEAT AND POWER COMPANY (GAS COMPANY), A SUBSIDIARY OF THE CINCINNATI GAS AND ELECTRIC COMPANY, WHICH WAS UPRATING THE GAS MAIN BY CONTROLLED PRESSURE INCREASES AT THE TIME OF THE ACCIDENT.\n\nNtsbnumber: DCA81AP001\n\nReport Number: PAR-81-01\n\nAddressee Name: Union Light, Heat and Power Company\n\nAddressee Status: Closed--No Longer Applicable\n\nAddressee Date Closed: 1983-02-02\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1982-10-25\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: UNION LIGHT, HEAT AND POWER COMPANY LTR: UNION LIGHT'S PROGRAM FOR SERVICE COCK/VALUE ACCESSIBILITY, OPERABILITY AND RECORDS CHECK IS NOW AS FOLLOWS: (1) PHYSICAL INSPECTIONS OF ALL SERVICE COCK/VALVE BOXES FOR ACCESSIBILITY ON AN ANNUAL BASIS. (2) OPERABILITY CHECK OF SERVICE COCK/VALVE IN CONJUNCTION WITH ANY METER CHANGE. (3) CONTINUING FIELD CHECK OF SERVICE COCK/VALVE BOX LOCATION RECORDS ON A FREQUENCY NOT TO EXCEED 10 YEARS. UNION LIGHT INITIATED ITS ANNUAL ACCESSIBILITY INSPECTIONS OF ALL SERVICE COCK/VALVE BOX INSTALLATIONS IN THE EARLY 1970'S OF ALL SERVICES OF RECORD. APPROXIMATELY 58,000 WERE INSPECTED IN 1981.\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1983-02-02\n\nCommunication Type: Official Correspondence\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1982-10-08\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":2542}