ENS 42637

v t e ENS Event
07:00 Jun 13, 2006
Title	10 Cfr Part 21 Notification - Defective Nordberg Emergency Diesel Generator Valve Seat Inserts
Event Description	The manufacturer provided the following information via facsimile: Significant Safety Hazard regarding the potential of Nordberg Valve Seat Inserts (VSI) to 'drop' from the bore of the cylinder head into the cylinder with probable resulting damage to the cylinder head, power valves, piston, cylinder liner, exhaust manifold and turbocharger which could result in the loss of the intended 'Safety Function' of the EDG. There exists a potential problem with the original specification for the specified value of interference fit of the inlet and exhaust Valve Seat Insert (VSI) in the area between the cylinder head bore and the VSI. Two sites, Brunswick and McGuire, had the defective parts with Brunswick already having changed out the affected parts.

ENS 42637 +/-
Where
Nordberg Windsor, California (NRC Region 4)
Organization:	Nak Engineering Inc
Reporting

10 CFR 21.21
Time - Person (Reporting Time:+8.48 h0.353 days <br />0.0505 weeks <br />0.0116 months <br />)
Opened:	Nak Engineering 15:29 Jun 13, 2006
NRC Officer:	Mark Abramovitz
Last Updated:	Jun 13, 2006
42637 - NRC Website
v • d • e

v t e Emergency Notification System
Nordberg with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation
WEEKMONTHYEAR2006-06-13T07:00:00 [Table view]
[ENS list for Nordberg]

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