{"operation":"document","citation":"P-80-013","title":"NTSB Safety Recommendation P-80-013","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1980-03-05","effective_on":"1980-03-05","summary":"THE NTSB RECOMMENDS THAT THE NORTHWESTERN PUBLIC SERVICE COMPANY: EXAMINE SAMPLE LOCATIONS OF UTILITY CROSSINGS AND TIE-INS, AND TAKE THE NECESSARY APPROPRIATE CORRECTIVE MEASURES TO INSURE THAT MAINS ARE PROPERLY SUPPORTED.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-80-013.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-80-013.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-80-013","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-80-013","body":"NTSB safety recommendation P-80-013.\n\nTHE NTSB RECOMMENDS THAT THE NORTHWESTERN PUBLIC SERVICE COMPANY: EXAMINE SAMPLE LOCATIONS OF UTILITY CROSSINGS AND TIE-INS, AND TAKE THE NECESSARY APPROPRIATE CORRECTIVE MEASURES TO INSURE THAT MAINS ARE PROPERLY SUPPORTED.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1980-03-05\n\nAdopted Date: 1980-02-22\n\nOverall Date Closed: 1983-02-02\n\nSynopsis: ON AUGUST 28, 1978, NATURAL GAS, WHICH HAD ESCAPED FROM A CIRCUMFERENTIAL FRACTURE IN A SOCKET HEAT-FUSION COUPLING ON A 2-IN. POLYETHYLENE (PE) MAIN, OPERATING AT 40-PSIG PRESSURE, MIGRATED BENEATH A ONE-STORY HOUSE IN GRAND ISLAND, NEBRASKA, EXPLODED, AND THEN BURNED. ONE PERSON WAS INJURED; THE HOUSE AT 2517 APACHE ROAD WAS DESTROYED; AND THREE ADJACENT HOUSES WERE DAMAGED. THE GAS WAS IGNITED BY AN UNKNOWN SOURCE.\n\nNtsbnumber: FTW78FP014\n\nReport Number: None\n\nAddressee Name: Northwestern Public Service Company\n\nAddressee Status: Closed--No Longer Applicable\n\nAddressee Date Closed: 1983-02-02\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1982-11-04\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: NORTHWESTERN PUBLIC SERVICE COMPANY LTR: (1) PROPER GAS LINE CONSTRUCTION PROCEDURES, MORE SPECIFICALLY BACKFILL AND SUPPORT TECHNIQUES, WERE REVIEWED WITH COMPANY PERSONNEL THROUGH TRAINING PROGRAMS WITH FOLLOW-UP REFRESHER TRAINING AND SUPERVISORY REVIEW; (2) COMPANY PERSONNEL WERE ADVISED TO MONITOR NON-COMPANY CONSTRUCTION PROJECTS (SEWER AND PLUMBING, FOR EXAMPLE) WHICH WOULD AFFECT THE COMPANY'S GAS MAINS AND SERVICES AND TO DISCUSS WITH CONTRACTORS THE NEED FOR PROPER SUPPORT OF GAS MAINS AND SERVICES; (3) THE COMPANY INITIATED A PROGRAM TO CONDUCT MONTHLY FLAME IONIZATION LEAKAGE SURVEYS OVER ALL IDENTIFIABLE PLASTIC GAS MAINS MANUFACTURED BY THE FIRM WHICH HAD PRODUCED THE CRACKED COUPLING; (4) THE COMPANY INITIATED A PROGRAM, WHICH HAS NOW BEEN COMPLETED, TO REPLACE ALL PLASTIC TEES, ELBOWS AND END CAPS MANUFACTURED BY THE FIRM WHICH HAD PRODUCED THE CRACKED COUPLING.\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":2318}