ML20030C348
| ML20030C348 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 07/31/1981 |
| From: | Matlock R WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, GO2-81-0217, NUDOCS 8108260004 | |
| Download: ML20030C348 (2) | |
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50.55(e) Report Docket.No. 50-397 Washington Public Power Supply System P.O. Box 968 3000GeorgeWashingtonWay Richland, Washington 99352 (509)372-5000 July 31,198.
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E, Mr. R. H. Engelken U.S. Nuclear Regulatory Commission 9
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Dear Mr. Engelken:
Subject:
SUPPLY SYSTEM NUCLEAR PROJECT N0. 2 10CFR50.55(e) P0TENTIALLY REPORTABLE CONDITION #i32 INADEQUATE LAYUP AFTER HYDR 0 STATIC TESTINC In keeping with the provisions of 10CFR50.55(e), your staff was informed, by telephone, on December 22, 1980, of a potentially reportable condition regarding inadequate layup of Class I components after hydrostatic testing.
Attached is an interim report on this condition. An update or final report will be provided by September 10, 1981.
Very truly yours,
{
a Ri G. Matlock Program Director, WNP-2 RGM/SLN/kd
Attachment:
Interim Report cc:
W. S. Chin, BPA - Site N. D. Lewis, NRC T. A. Mangelsdorf, Bechtel - Site C. W. Robinson, Burns and Roe - Site R. E. Snaith, Burns and Roe - NY V. Stello, NRC A. D. Toth, NRC - Site E. Wood, NRC 76>?
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8108260004 810731 I
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0 WALHINGTON PUBLIC POWER SUPPLY SYSTEM DOCKET NO. 50-397 LICENSI NO. CPPR-93 INADEQUATE LAYUP AFTER HYDR 0 STATIC TEST (WNP-2-PR-132)
SUPPLY SYSTEM NUCLEAR PROJECT NO. 2 INTERIM REPORT Description of Deficiency Two systems containing Quality Class I components had been hydrostatically tested. These are the Low Pressure Core Spray (LPCS) and Standby Service Water (SSW). The contractor performing the testing was not given definitive requirements for layup after completion of the test. This created a situation whereby standing water could exist in the system piping, causing corrosion of the piping.
Approach to Resolution of the Deficiency The 215 Contract has been revised to require draining systems e s
instrument air after hydrostatic testing. This will prevent the situation from re-occurring. Measurements will be taken to assess the damage.
Status of Proposed Resolution Two Project Engineering Directives have been written (PED's 215-M-A409 and 215-M-A497) requiring the 215 Contractor to measure pipe wall thickness in the SSW System.
In the LPCS piping, the WNP-2 Startup Test Grocp will perform this function.
Reason for Delay of final Report We are awaiting the results of the test program to fully assess the situation.
Projected Completion of Corrective Action and Subnittal of Update At this time, we have no firm date from the contractor or Stat tup Group as to when this work will be completed. An updar.e will be provided by September 10, 1981.
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