ML20246J004
| ML20246J004 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/08/1989 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| C311-89-2049, IEB-88-010, IEB-88-10, NUDOCS 8905160257 | |
| Download: ML20246J004 (2) | |
Text
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GPU Nuclear Corporation Nuclear
- ome:r8o s
Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Number:
May 8, 1989 C311-89-2049 i
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 Interim Response to NRC Bulletin 88-10:
Nonconforming Molded-Case Circuit Breakers This letter provides an interim response to NRC Bulletin 88-10 " Nonconforming Molded-Case Circuit Breakers." This response is bcing submitted late, as discussed with R. Hernan, NRC Project Manager, because further clarification was needed on the acceptability of some documentation as establishing verifiable traceability.
Because of the clarification received, we are submitting this letter as an interim response. This is further explained in the enclosed response to the NRC Bulletin reporting requirements.
We expect to provide a supplemental response within thirty days of this letter.
Sincerely,
. D.
k 11 Vice President & Director, TMI-1 HDH/SM0/spb:2049 cc:
R..Hernan F. Young Swornaqdsubscribedtobeforeme this fl day of '7/7/h /
, 1989.
NOTARIAL sE/1
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SHARON P, BROWN, NOTARY PUBUC MIDDLETOWNBORO DAUPHINc0VNTY MYc0MMISSION EXPIRESJUNE 12,1980 p
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Notary P'ublic GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation 8905160257 890508 PDR ADOCK 05000289 Q
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ENCLOSURE E
In accordance with the reporting requirements of NRC Bulletin 88-10, responses to item 1(a), (b), and (c) are provided.
1(a).
We confirm that the molded-case circuit breakers being stored as spares-
.for future use in safety-related applications were manufactured by and procured from a circuit breaker manufacturer under a 10 CFR 50 Appendix B program or have been procured with verifiable traceability
'and upgraded to safety related using our dedication program.
(b).
To date, 148 of 156 molded-case circuit breakers identified as within the scope of the NRC Bulletin have verifiable traceability to the circuit breaker manufacturer. This verifiable traceability is in the form of a Certificate of Conformance.
For four breakers, however, the traceability consists of documentation from the manufacturer which does not meet the definition of verifiable traceability provided in the NRC Bulletin.
However, based on discussions with an NRC technical contact, we have determined that we have adequate documentation in the form of statements of conformance, inspection reports and packing information to establish that the breakers were manufactured by the stated company.
There are eight breakers for which traceability acceptable to the NRC has not been established. We have been in contact with the manufacturers and are attempting to obtain documentation to verify.the traceability of these breakers. The breakers were procured during 1976-1979. We have removed the breakers from stock until adequate traceability can be verified. We will supplement this response at that time.
(c).
All actions required by the Bulletin have been completed except as noted above. Any testing that may be required will be completed before the startup from the next refueling-outage which is scheduled to commence in January 1990.
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