KEYSPAN ENERGY DELIVERY - NY CITY

Incident Narrative

UPDATE 2/26/2018 - SUPPLEMENTAL REPORT IS BEING FILED. THIS INCIDENT IS STILL UNDER INVESTIGATION; THEREFORE SECTIONS OF PART D ARE NOT AVAILABLE AND PART G CAUSE INFORMATION IS STILL UNKNOWN. UPDATE 3/21/2018 - SUPPLEMENTAL REPORT IS BEING FILED. PART G STATES OTHER OUTSIDE FORCE - ELECTRICAL ARCING. COSTS HAVE BEEN UPDATED. NATIONAL GRID WAS NOTIFIED ON 12/17/2016 BY FDNY OF A MANHOLE FIRE IN THE INTERSECTION OF 43RD AVE & 104TH STREET. NATIONAL GRID ARRIVED ON SCENE AND SECURED NATURAL GAS BY CLOSING VALVE (BQ5290) EXTINGUISHING THE GAS FED FIRE. AFTER FURTHER INVESTIGATION IT WAS DETERMINED THE CAUSE OF DAMAGE TO NATIONAL GRID'S GAS MAIN WAS DUE TO A FAULTY UNDERGROUND ELECTRICAL CABLE. ADDITIONAL INCIDENT INVESTIGATION WILL BE REQUIRED TO DETERMINE RESPONSIBLE PARTIES FOR THE ELECTRICAL CABLE DAMAGE AND THE SUBSEQUENT FIRE. ALL FOUR CUSTOMERS WHO WERE OUT OF SERVICE HAVE HAD SERVICE RESTORED PRIOR TO 1/14/2017. PLEASE NOTE THAT FOR PART D, 2A IS LEFT UNANSWERED. THERE WERE MULTIPLE UTILITY SUBSTRUCTURES INVOLVED IN THIS INCIDENT INCLUDING ELECTRICAL CABLE, TELECOMMUNICATIONS AND NATURAL GAS. THOSE COSTS WILL BE ENTERED AS THEY BECOME AVAILABLE. PLEASE NOTE THAT ALTHOUGH THE INCIDENT OCCURRED ON DECEMBER 17, 2016 AT APPROXIMATELY 19:31, THE EXTENT AND COST OF DAMAGE TO NON-OPERATOR PRIVATE PROPERTY WAS UNKNOWN. IT WAS NOT UNTIL DECEMBER 23, 2016 WHEN NATIONAL GRID LEARNED THAT THE COST WOULD EXCEED $50,000.00, WHICH ELEVATED THIS FAILURE TO A REPORTABLE INCIDENT (THE EXACT COST IS STILL UNKNOWN AND CONTINUES TO BE INVESTIGATED).