{"operation":"document","citation":"P-77-004","title":"NTSB Safety Recommendation P-77-004","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1977-06-08","effective_on":"1977-06-08","summary":"ENCOURAGE, COORDINATE, AND MONITOR DEVELOPMENT OF EQUIPMENT WHICH COULD BE USED TO DETECT THE LOCATION OF SINKHOLES IN THE VICINITY OF UNDERGROUND UTILITIES.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-77-004.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-77-004.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-77-004","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-77-004","body":"NTSB safety recommendation P-77-004.\n\nENCOURAGE, COORDINATE, AND MONITOR DEVELOPMENT OF EQUIPMENT WHICH COULD BE USED TO DETECT THE LOCATION OF SINKHOLES IN THE VICINITY OF UNDERGROUND UTILITIES.\n\nPriority: CLASS III\n\nOverall Status: Closed - Unacceptable Action\n\nIssued Date: 1977-06-08\n\nAdopted Date: 1977-05-18\n\nOverall Date Closed: 1979-02-02\n\nSynopsis: ON AUGUST 8, 1976, A GAS EXPLOSION DESTROYED A HOUSE AT 1127 OAK STREET, ALLENTOWN, PENNSYLVANIA. THE GAS MIGRATED FROM A BREAK IN A 4-INCH CAST-IRON MAIN UNDER THE STREET, THROUGH LOOSE SOIL UNDER A CONCRETE SIDEWALK, AND INTO THE BUILDING THROUGH CRACKS AND OPENINGS IN ITS FOUNDATION.\n\nNtsbnumber: DCA76MP024\n\nReport Number: PAR-77-02\n\nAddressee Name: RSPA\n\nAddressee Status: Closed - Unacceptable Action\n\nAddressee Date Closed: 1979-02-02\n\nAddressee Acronym: RSPA\n\nAddressee Organization Type: G-Federal Government\n\nCommunication Date: 1977-09-30\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: LETTER FROM MATERIALS TRANSPORTATION BUREAU: MTB IS FAMILIAR WITH THE UNIQUE PROBLEM THAT AFFECTS ALLENTOWN'S CAST-IRON MAINS. AT THE PRESENT TIME, WE DO NOT HAVE FUNDS AVAILABLE FOR THE DEVELOPMENT OF EQUIPMENT TO DETECT THE LOCATION OF SINKHOLES IN THE VICINITY OF UNDERGROUND UTILITIES. UGI CORPORATION AND SOME GEOPHYSICAL COMPANIES ARE INVOLVED IN R & D EFFORTS IN THIS AREA. MTB WILL CONTINUE TO ENCOURAGE THESE EFFORTS. 3/20/78 - MTB LTR: IT IS THE OPINION OF MTB THAT THE POTENTIAL PAYOFF FOR INCREASED SAFETY THROUGH RESEARCH AND DEVELOPMENT EFFORTS IN THIS AREA DOES NOT WARRANT RESOURCE INVESTMENT. MTB FINDS NO PRIVATE SECTOR PLANS TO DEVELOP SUCH DEVICES.\n\nAddressee Acronym: RSPA\n\nAddressee Organization Type: G-Federal Government\n\nCommunication Date: 1977-11-18\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":1800}