{"operation":"document","citation":"P-76-019","title":"NTSB Safety Recommendation P-76-019","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1976-02-08","effective_on":"1976-02-08","summary":"TRAIN EMPLOYEES WHO WILL INSTALL COMPRESSION COUPLINGS UNDER THE STANDARDS DEVELOPED AND MONITOR THEIR PERFORMANCE BY INSPECTING THEIR WORK. (URGENT)","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-76-019.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-76-019.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-76-019","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-76-019","body":"NTSB safety recommendation P-76-019.\n\nTRAIN EMPLOYEES WHO WILL INSTALL COMPRESSION COUPLINGS UNDER THE STANDARDS DEVELOPED AND MONITOR THEIR PERFORMANCE BY INSPECTING THEIR WORK. (URGENT)\n\nPriority: CLASS I\n\nOverall Status: Closed--No Longer Applicable\n\nIssued Date: 1976-02-08\n\nAdopted Date: 1976-04-29\n\nOverall Date Closed: 1983-01-27\n\nSynopsis: ON FEBRUARY 8, 1976, A HOUSE IN PHOENIX, ARIZONA, EXPLODED AND BURNED. OF TWO PERSONS WHO WERE HOSPITALIZED AS A RESULT OF THE ACCIDENT, ONE DIED.\n\nProbable Cause: The National Transportation Safety Board's investigation of this accident disclosed that the natural gas at 39-psig pressure had leaked from the compression coupled connection of a 2-inch pipe appeared to have been inserted insufficiently through the gasket and into the coupling. Gas which leaked from this joint was trapped from above by heavily compacted soil; it consequently seeped into the house, where it was ignited by an unknown source. The 2-inch plastic pipe, which was installed in 1968 by the Arizona Public Service Company, was damaged by an excavator in 1969. The gas company repaired the leak by installing a 6-inch-ling compression coupling to connect each end of the severed 2-inch plastic pipe. The repaired section was wrapped with tape which extended 3 to 4 inches over the pipe on each side of the coupling.\n\nNtsbnumber: DCA76FP015\n\nReport Number: None\n\nAddressee Name: Arizona Public Service Company\n\nAddressee Status: Closed--No Longer Applicable\n\nAddressee Date Closed: 1983-01-27\n\nAddressee Acronym: APS\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1982-11-12\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: ARIZONA PUBLIC SERVICE COMPANY LTR: ALL EXISTING LOCATIONS OF THE SUBJECT COUPLINGS ARE PERIODICALLY LEAK SURVEYED PURSUANT TO THE GUIDELINES ESTABLISHED BY THE NTSB.\n\nAddressee Acronym: APS\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1982-10-05\n\nCommunication Type: Official Correspondence\n\nAddressee Acronym: APS\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1983-01-27\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":2159}