ML20072P937
| ML20072P937 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 11/16/1990 |
| From: | Fitzpatrick E GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| C321-90-2008, NUDOCS 9011290309 | |
| Download: ML20072P937 (2) | |
Text
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e o-GPU Nuclear Corporation GPU Nuclear
= 1. = = 388 Forked River, New Jersey 087310388 609 971 4000 Wnter's Direct Dial Number:
Nov ember 16, 1990 C321-90-2008 U.S. Nuclear Regulatory Commission Attnt Cocument Control Desk washington, D.C.
20555 Dear Sirs
=
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 Inspection Report 90-16 Reply to a Notice of Violation In accordance with 10 CFR 2. 201, the enclosed provides GPU Nuclear's response to the violation identified in NRC's Inspection Report 50-219/90-16.
If further information is required, please contact Brenda DeMerchant, OC Licensing Engineer at (609)971-4642.
Very truly yours, eea 4 e
E.E. Fitzpa ick Vice President and Director Oyster Creek EEF/BDeM/je Enclosure h
cc Mr. Themas Martin, Administrator Region 1 U.S. Nuclear Regulatory Commission
'475 Allendale Road King of Prussia, PA 19406 NRC Resident Inspector Oyster Creek Nuclear Generating Station Mr. Alexander Dromerick U.S.
Nuclear Regulatory Commission Mall Station P1-137 s-3 Washington, DC 20555
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GPU Nuclear Corporation is a subsidiary of General Pubhc Utitties Corporation i
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Nuclear R:gulctory Commi;sion C321-90-2008 Violation:
Technical Specification 6.8.1 requires that written procedures be established, implemented and maintained that meet or exceed the requirements of NRC Regulatory
-Quide 1.33.
Regulatory Guide 1.33, Rev. 2, endorses ANSI N18.7-1976, Section 5.2.2, which requires that procedures be followed.
Station Procedure 328, Rev. 14, " Turbine Building Heating and Ventilation System,"
requires the-turbine building operating floor to be maintained at an atmcapheric pressure of 0.0 inch water' gauge when exhaust fan 1-33 is not operating.
Contrary to the above, written procedures were not followed in that, on August 27, 28, and 30, 1990, the turbine building operating floor was maintained at a higher 1
than atmospheric pressure when exhaust fan 1-33 was not operating.
1 Responses Admission of Violation:
GPUN concurs with the violation as stated.
Reason for the Violation
.The violation occurred due to a design deficiency in the turbine building differential pressure gauge. This gauge (DPI-389) has'a scale of 0"-to -2.5"wg.
Howevor the gauge does not indicate when a positive differential pressure exists and thus the operator cannot readily determine an out of specification condition.
' Corrective Steos that Have Been Taken:
g A new gauge has hoen ordered to= replace the existing gauge.
The new gauge is identical to the existing gauge in every way except-for scale.
The new gauge will have a scale of
-2" to 2" wg.
This scale will allow the operators to determine if a' positive differential pressure condition exists on the turbine building operating floor.- This gauge is expected to be installed during the first quarter of 1991.
Corrective Steos that will b(_Taken Avoid Further Violatones y
A draft change to Procedure 320, " Turbine Building Heating and Vencilation System" i
-has been. developed to provide gnidance to the operators on how to reestablish a zero or negative differential pressure if a positive differential prescure exists-o'n.the turbine building _ operating floor.
Interim gi.idance has been provided to'the
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Operations staff to ensure they are knowledgeable cf.the need to maintain a negative pressure, and of the actions to take to'rtsstore negative pressure should the building go positive.
L" The PSAR will be rev'ised to address the turbine oIerating floor being maintained at an atmospheric pressure of zero inches water gauge when exhaust fan'1-33 is out of l
service. This revision will be integrated into the'FSAR upgrade pregram which is D
scheduled for completion by the end of 1991.
Date Full Compliance was Achieved i
' Full ~ compliance was achieved on September 1, 1990 when the turbine building i
operating floor differential pressure was returned to normal, i