ENS 40446

v t e ENS Event
05:00 Jan 14, 2004
Title	10 Cfr Part 21 Notification for Defective Particulate Radiation Monitors
Event Description	Eight particulate radiation monitoring local processing units manufactured by MGP Instruments, Part # RMS 9040-S with software application 564J were supplied to SCE San Onofre Units 2 and 3. Manufacturer believes 4 units are installed in the following unit skid locations 3RE-7804, 3RE-7807, 2RE-7804, 2RE-7807 and 4 units were supplied as spares. The defect is a possible underestimation of volumetric activity following an auto filter paper advance. The manufacturer determined that you could have a potential underreporting measurement result if the unit program advanced the filter paper immediately following a step change or rapid release in particulate radiation. The manufacturer will revise the application software to handle both conditions simultaneously and advise SCE San Onofre Units 2 and 3 to manually advance the filter paper based on operating experience until the software application can be modified and installed. Manufacturer will notify SCE San Onofre Units 2 and 3 on 01/14/04.

ENS 40446 +/-
Where
Mgp Instruments Smyrna, Georgia (NRC Region 1)
Organization:	Mgp Instruments
Reporting

10 CFR 21.21
Time - Person (Reporting Time:+7.65 h0.319 days <br />0.0455 weeks <br />0.0105 months <br />)
Opened:	David Jarrow 12:39 Jan 14, 2004
NRC Officer:	Jeff Rotton
Last Updated:	Jan 14, 2004
40446 - NRC Website
v • d • e

v t e Emergency Notification System
Mgp Instruments with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation
WEEKMONTHYEAR2004-01-14T05:00:00 [Table view]
[ENS list for Mgp Instruments]

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