{"operation":"document","citation":"P-92-022","title":"NTSB Safety Recommendation P-92-022","source_type":"guidance","agency":"National Transportation Safety Board","status":"guidance","official":true,"published_on":"1992-07-08","effective_on":"1992-07-08","summary":"THE NTSB RECOMMENDS THAT THE CONSUMERS POWER COMPANY: CONDUCT PRE-WORK MEETINGS WITH CONTRACTOR EMPLOYEES TO INSTRUCT THEM ON THE POTENTIAL HAZARDS OF THE WORK AND ON THE ACTIONS TO TAKE IN AN EMERGENCY.","machine_formats":{"json":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-92-022.json","markdown":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-92-022.md"},"app_url":"https://regulus.evalyn.ai/document/ntsb-recommendation-p-92-022","source_url":"https://data.ntsb.gov/carol-main-public/sr-details/P-92-022","body":"NTSB safety recommendation P-92-022.\n\nTHE NTSB RECOMMENDS THAT THE CONSUMERS POWER COMPANY: CONDUCT PRE-WORK MEETINGS WITH CONTRACTOR EMPLOYEES TO INSTRUCT THEM ON THE POTENTIAL HAZARDS OF THE WORK AND ON THE ACTIONS TO TAKE IN AN EMERGENCY.\n\nPriority: CLASS II\n\nOverall Status: Closed - Acceptable Action\n\nIssued Date: 1992-07-08\n\nAdopted Date: 1992-06-19\n\nOverall Date Closed: 1992-12-08\n\nSynopsis: ABOUT 12:00 NOON EASTERN DAYLIGHT SAVINGS TIME ON JULY 17, 1991, WORKERS WERE REMOVING A CORRODE SEGMENT OF THE CONSUMERS POWER COMPANY'S (CP) 10-INCH-DIAMETER TRANSMISSION LINE PIPELINE AT BAILEY BRIDGE ROAD IN MAPLETON, MICHIGAN. AS A SEGMENT OF THE PIPELINE WAS BEING REMOVED, NATURAL GAS AT 360-PSIG PRESSURE EXERTED ABOUT 12 TONS OF FORCE ON AN ADJACENT CLOSED VALVE (H-143) CAUSING IT AND A SHORT SEGMENT OF CONNECTED PIPE TO MOVE AND SEPARATE FROM AN UNANCHORED COMPRESSION COUPLING. THE FORCE OF THE ESCAPING GAS KILLED ON WORKER (A WELDER), INJURED FIVE OTHER WORKERS, AND COLLAPSED A STEEL PIT THAT HOUSED VALVE H-143.\n\nProbable Cause: None\n\nNtsbnumber: DCA91FP010\n\nReport Number: None\n\nAddressee Name: Consumers Power Company\n\nAddressee Status: Closed - Acceptable Action\n\nAddressee Date Closed: 1992-12-08\n\nAddressee Acronym: CMS\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1992-12-08\n\nCommunication Type: Official Correspondence\n\nCommunication Contents: THE BOARD NOTES THAT THE CP HAS EXPANDED ITS PREJOB PLANNING MEETING REQUIREMENTS TO INCLUDE CONTRACTORS EMPLOYEES WHEN REVIEWING POTENTIAL HAZARDS & THE APPROPRIATE RESPONSE TO EMERGENCY CONDITIONS. CONSEQUENTLY, RECOMMENDATION P-92-22 HAS BEEN CLASSIFIED AS \"CLOSED--ACCEPTABLE ACTION.\"\n\nAddressee Acronym: CMS\n\nAddressee Organization Type: P-Private Industry\n\nCommunication Date: 1992-09-25\n\nCommunication Type: Official Correspondence","truncated":false,"body_characters":1832}