ML20154C761
| ML20154C761 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/09/1988 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| C311-88-2106, IEB-88-005, IEB-88-5, NUDOCS 8809150007 | |
| Download: ML20154C761 (3) | |
Text
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GPU Nuclear Corporation Nuclear
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Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's D! rect Olal Nurnber:
September 9, 1988 C311 2106 US Nuclear Regulatory Commission Attn:
Document Control Desk Washington, DC 20555
Dear Sir:
Three Mile Island Nuclear Station, Unit 1 {TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Response to NRC Bulletin 88 Nonconforming Material Supplied by PSI and WJM The following information provides a sunrnary of the actions taken in response to NRC Bulletin 88-05 as of August 3,1988, 1.
We have determined that GPUN has not procured any material directly from PSI or WJM for TMI-1, 2.
All known GPUN QA-approved suppliers of fittings and flanges during the specified time frame were contacted by letter and requested to rev1ew their records to determine if they had supplied any PSI or WJM material to TMI.
The 128 suppliers can be divided into three categories:
A.
GPUN primary suppliers.
B.
Suppliers identified in Bulletin 88-05 excluding those identified in Category A.
C.
GPUN secondary suppliers (small no. of orders)
In Category A, there are seven suppliers.
Although responses from two of the suppliers were considered adequate, a spot check of procurement records was performed.
For the remaining five suppliers, a 1007, review of records was performed.
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0 GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation
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- C311-88-2106 September 9, 1988 The responses received from the thirteen Category B suppliers did not identify any PSI or WJM material supplied.- A spot check of the procurement records was underway at the time Supplement 2 was issued. The records of three of the thirteen suppliers have been reviewed.
Category C consists of 108 suppliers with responses from approximately 40%
l of these received.
No WJM or psi material has been identified as supplied.
The spot checks of the Category B and C records will be completed if the 1
NRC reinstates the requirement to perform reviews.
3.
A review of the procurement records for all piping, fittings and flanges for maintenance and modifications performed during the 7R outage was performed.
This review covered material procured specifically for the outage as well as stock material used which was procured over the last ten years.
The reviews described in items 2 and 3 have identified forty flanges manufactured by PSI or WJM.. The following table is a sumary of the application, number and disposition of the flanges.
Application No.
Disposition OTSG Blowdown System 4 socket-welded flanges Hardness test acceptable (Non-safety related) 2 blind flanges on all. Although acceptable, blind flanges were replaced to support the NUMARC program.
River Water Lube System 2 carbon steel flanges
- Hardness or Non-Magnetic (Non-safety related) 2 stainless steel flanges tests acceptable. Use as 2 spares (not installed) is.
Hydrogen Recombiner 3 weldneck flanges Hardness test acceptable.
(Safety related)
Use as is.
Fire Service System 6 weldneck flanges Hardness test acceptable, in Turbine Building Use as is.
(Non-safety related)
In warehouse 6 - 1 1/2" flanges Testing completed.
11 threaded flanges Hardness test results are being evaluated.
Withdrawn from ware-2 flanges Cenfirmed not to be house - location unknown, installed in Nuclear Safety - related or important to satety applications by Walkdowns of all NSR/ITS jobs that used stock in question.
m
~ C311 2106 September 9, 1988 Hardness testing was performed using Equotip Hardness Test Equipment in accordance with NUMARC guidelines.
If this testing indicated a hardness of less than 137 BHN, confirmatory tests were performed with Newage hardness test equipment. The Newage hardness test equipment measures hardness using penetration / indentation.
This method of testing is not as sensitive to mass, vibration, surface roughness or environmental conditions as the Equotip hardness test method.
If the confirmatory test indicated a hardness greater than 137 BHN, the n.aterial was considered acceptable. All flanges tested were acceptable per ASTM A-105.
We feel we have reasonable assurance that any WJM or PSI flanges that were supplied to TMI-l have been identified.
Those suppliers who had not responded by August 3,1988 were responsible for a limited number of orders.
Sincerely,
.I H. D.
u fil Vice President & Director, TMI-l HDH/SM0/her:1229A cc:
R. Herman, USHRC R. Conte, USNRC W. Russell, USNRC Sworn and subscribed to beforg.
this
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, 1988.
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