ML20035H036

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Part 21 Rept Re Discrepancy Described in Configuration of Ion Chamber in Figures 1 & 2.Addl Steel & Lead of Figure 2 Would Attenuate 80 Kev Photopeak of Xe-133 So That Monitor Could Not Detect Concentration of Xe-10
ML20035H036
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 12/11/1992
From: Morin L
VICTOREEN, INC.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20035H035 List:
References
REF-PT21-93 NUDOCS 9305030006
Download: ML20035H036 (2)


Text

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Date:

11 December 1992 Document Control Desk, U.S. Nuclear Regulatory Comminaion, j

Weshington, DC 20555 i

Subject:

Notification of a noncompliance on a Non Class 1E cretem.

Reference:

10CFR21 section 21.3 (4) i Notification Date:

12 December 1992 Via Fax (301) 492-8187 l

Individual Notifying &

-inaion:

i Linda S Morin Corporate Quality Accurance Manager Name and Address of Company Notifying the Cossainaion:

Victorcen Inc.

6000 Cochran Road Cleveland Ohio 44139-3395 I

(218) 248-9300 Facility Containing the defect:

Portland General Electric Co.

Trojan Nuclear Plant Rainter Oregon 97204 Date on which the condition was identified:

11 December 1992 Nature of the condition:

Item in question, 847 Ion Chamber it appears that the original

" WET" Calibration was done with Xe-133 Per figure 1

(see attached).

The actual use configuration is per figure 2.

The additional steel and lead of figure 2 would attenuate the 80 Kev photopeak of Xe-133 so completely that the monitor would not be abic to detect concentration of Xe 10 2 microcurie /cc range.

Linda S Morin W

MS por e Quality ssu ce Manager i

6000 Cochrari Paed Gewlarad. Ohio 44 39 3395 -

(236)248-9300 9305030006 930211 m (2 4 24s43o:

PDR ADOCK 05000344 DAW 2 63 2w43 S

PDR Twx aso,42s-s287

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