ML20092N635
| ML20092N635 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 06/15/1984 |
| From: | Fiedler P GENERAL PUBLIC UTILITIES CORP. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| 84-01, 84-1, NUDOCS 8407030362 | |
| Download: ML20092N635 (3) | |
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-OYSTER CREEK NUCLEAR GENERATING STATION Forked River, New Jerrr.y 08731 Special Report 84-01 I
Report Date.
t June 15, 1984 Occurrence Date June 6,1984 ~
Identification of Occurrence
- Fire suppression water system inoperable.
This event is considered to be reportable as defined in the Technical Specifications, paragraph 3.12.B.3.
Conditions Prior to Occurrence l
' The plant is shutdown with fuel in the reactor vessel. A refueling / maintenance outage is in progress.
. Description of Occurrence
' On June 6 - 1984 at 'l:30 P.M., post indicating valve Y-9-12, branching off the 14" fire water main was: damaged by a' maintenance vehicle resulting in a loss r
of the fire suppression water system (main water feed to underground loop from fi re punip 1-1 and 'l-<.).
Subsequently, the 14" fire water main was isolated in the area of the damaged post indicating valve (V-9-12) and the redundant fire protection water supply / pump was tested for operability and aligned to the fire suppression header.-
' Apparent Cause of Occurrence The cause for loss of the fire suppression water system was attributed to extremely soft soil and a lack of protection against physical damage in the i
area surrounding the post in'dicating valve in question. This condition
- rcsulted in the. soil giving way causing the maintenance vehicle to slide into and damage post indicating valve V-9-12.
In order to perform maintenance on V-9-12, the 14" fire water main had to be isolated and drained, rendering fire pump :1-1 and 1-2 inoperable.
8407030362 840615 PDR ADOCK 05000219 S
Sp;cial Rep 3rt 84-02 Page 2 nh.
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Corrective Action Immediate corrective action to repair post indicating valve V-9-12 and restore the fire suppression water system (14" main from fire pump 1-1 and 1-2) to operable status was completed at 11:00 P.M. on June 6,1984.
As a result of the above incident'all post indicating valves in similar areas were inspected for potential damage due to a lack of physical protection. All post indicating valves were adequately protected except for the post
- indicating valve in question (V-9-12), which has been temporarily barricaded off. and will be permanently protected with guard posts.
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To:
Dr. Thomas E. Murley Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 From:
GPU Nuclear Oyster Creek Nuclear Generating Station Docket No. 50-219 Forked River, NJ 08731
Subject:
Special Report to the Commission The following is a preliminary report submitted in compliance with the Technical Specifications, paragraph 3.12.B.3.
Report Date:
June 15, 1984 Notification of the event described herein was made to Mr. W. M. Burton of the U.S. Nuclear Regulatory Commission, Region I on June 6,1984 at 1:55 P.M. by Mr. W. V. Stewart, Operations Control Manager.
Preliminary Approval:
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.1 21 Peter B.Mer Vice President and Director Oyster Creek:
P8F: dam cc: Director (2)
Office of Management Infonnation and i
Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555 NRC Resident Inspector Oyster Creek Nuclear Generating Station Forked River, NJ 08731
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