{"operation":"document","citation":"P-85-012","title":"NTSB Safety Recommendation P-85-012","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1985-07-01","effective_on":"1985-07-01","summary":"THE NTSB RECOMMENDS THAT THE SOUTHWEST GAS CORPORATION, AS SUCCESSOR TO THE ARIZONA PUBLIC SERVICE COMPANY: OPERATE THE SECTIONS OF ITS SYSTEM USING ABS PLASTIC PIPE AT THE LOWEST FEASIBLE PRESSURE UNTIL ALL OF THE ABS PLASTIC PIPE HAS BEEN REMOVED.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-85-012.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-85-012.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-85-012","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-85-012","body":"NTSB safety recommendation P-85-012.\n\nTHE NTSB RECOMMENDS THAT THE SOUTHWEST GAS CORPORATION, AS SUCCESSOR TO THE ARIZONA PUBLIC SERVICE COMPANY: OPERATE THE SECTIONS OF ITS SYSTEM USING ABS PLASTIC PIPE AT THE LOWEST FEASIBLE PRESSURE UNTIL ALL OF THE ABS PLASTIC PIPE HAS BEEN REMOVED.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1985-07-01\n\nAdopted Date: 1985-06-12\n\nOverall Date Closed: 1989-05-12\n\nSynopsis: AT 3:30 A.M. ON SEPTEMBER 25, 1984, AN EXPLOSION FOLLOWED BY AN INTENSE NATURAL GASFED FIRE DESTROYED TWO APARTMENTS AT 3022 NORTH 37TH STREET IN PHOENIX, ARIZONA. OF THE 12 PERSONS INJURED IN THE FIRE, 5 PERSONS LATER DIED. AFTER THE FIRE WAS EXTINGUISHED, THE 1 1/4-INCH-DIAMETER PLASTIC GAS MAIN SUPPLYING GAS TO THE DESTROYED APARTMENTS WAS EXCAVATED AND A 3-INCH-LONG LONGITUDINAL SPLIT WAS DISCOVERED IN THE BOTTOM OF THE PIPE 18 FEET FROM THE GAS METERS ON THE APARTMENT BUILDING. GAS AT 30 PSIG HAD ESCAPED THROUGH THE LONGITUDINAL SPLIT, MIGRATED INTO AND UNDER THE APARTMENTS, IGNITED, EXPLODED, AND BURNED.\n\nNtsbnumber: DCA84AP026\n\nReport Number: PAR-85-01\n\nAddressee Name: Southwest Gas Company\n\nAddressee Status: Closed - Acceptable Action\n\nAddressee Date Closed: 1989-05-12\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1989-01-16\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: THE OPERATING PRESSURE FOR THE ABS PLASTIC PIPE SYSTEM HAS BEEN KEPT AT THE LOWEST FEASIBLE PRESSURE AND WILL BE KEPT THIS WAY UNTIL THE PROGRAM IS COMPLETED.\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1989-05-12\n\nCommunication Type: Official Correspondence\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1988-10-21\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":1796}