ENS 47635

v t e ENS Event
05:00 Dec 1, 2011
Title
Event Description	PART 21 REPORT - FOREIGN MATERIAL FOUND IN EMERGENCY DIESEL GENERATOR HIGH PRESSURE FUEL HOSE Cooper Nuclear Station (CNS) returned one high pressure fuel hose to Engine Systems, Inc. (ESI) because CNS had found foreign material within the hose during receipt inspection. This fuel hose was one of four fuel hoses that had been supplied to CNS by ESI in October 2011. ESI performed an evaluation and found very small pieces of the elastomer tube internal to the hose. Apparently these pieces were introduced during assembly of the end fittings onto the hose during fabrication of the hose assembly. When installed, this fuel hose would be located after the engine fuel filter and before the fuel injection pumps. Foreign material within this hose could migrate to the fuel injection pumps. The entrance of foreign material could impact operability of one or more fuel injection pumps and therefore affect fuel delivery to one or more engine cylinders. This could impact the load carrying capability of the diesel engine or possibly cause complete engine shutdown. Either scenario has the potential to prevent the emergency diesel generator from performing its safety related function. These hoses were supplied only to CNS.

ENS 47635 +/-
Where
Engine Systems, Inc Rocky Mount, North Carolina (NRC Region 1)
Organization:	Engine Systems, Inc
Reporting

10 CFR 21.21
Time - Person (Reporting Time:+1546.58 h64.441 days <br />9.206 weeks <br />2.119 months <br />)
Opened:	Tom Horner 15:35 Feb 3, 2012
NRC Officer:	Donald Norwood
Last Updated:	Feb 3, 2012
47635 - NRC Website
v • d • e

v t e Emergency Notification System
Engine Systems, Inc with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation
WEEKMONTHYEAR2012-02-17T05:00:00 [Table view]
[ENS list for Engine Systems, Inc]

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