ML20209D294
| ML20209D294 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Hope Creek, 05000000 |
| Issue date: | 09/02/1986 |
| From: | Stello V NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
| To: | Zech NRC COMMISSION (OCM) |
| Shared Package | |
| ML20209D299 | List: |
| References | |
| NUDOCS 8609090260 | |
| Download: ML20209D294 (3) | |
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UNITED STAT 88 N.~
NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. a0006 SEP 02 5 MEMORANDUM FOR: Chairman Zech FROM:
Victor Stello, Jr.
Executive Director for Operations SURJECT:
HOPE CREEK FEEDWATER CHECK VALVES (N860721A1 On July 21, 1986, at the Commission briefing for Hope Creek, Comissioner Asselstine noted that a SER requirement for the licensee to inspect the inner and outer surfaces of the feedwater check valve bodies at each time the valves i
are disassembled had been deleted frrvn SER Supplement 2.
Comissioner i
Asselstine, with your concurrence, requested the staff to detail the reasons for this deletion. This request was conveyed in your memo dated July 30, 1986 (M860721A).
During the staff's review of the Hope Creek operatino license application, the staff identified the 24-inch feedwater check valves (1 F074 A and B) as parts of the reactor containment pressure boundary. The cast bodies of these valves are known to contain shrinkage flaws, which have been known to propagate in service. The staff concluded, as documented in Section 6.2.7 of the SER, that, provided the licensee submits an augmented inservice inspection program accept-able to the staff, reasonable assurance of compliance with the regulations exists. Specifically, the staff requested the licensee to comit to an augmented inservice inspection program, which would include inspection of the outer and inner valve body surfaces, at the first refueling outage and at other times when the valves are disassembled for maintenance.
In a letter dated September 28, 1984, the licensee comitted to conduct.these inspections.
In a letter dated March 12, 1985, which superseded the September letter, the licensee erroneously omitted its commitment to inspect valve body surfaces when the valves are disassembled for maintenance.
In the March 12 letter, the licensee reiterated its comitment to implement the entire valve body inspection during the first refueling outage. SER Supplement ? documents PSE8G's March 12,1985, rescense to this request by noting that PSE8G will implement an inservice inspection program for the valves at the first refueling outage to include inspectior of the entire surface of the valve bodies.
Furthennore, the licensee stated that a more detailed program for the feedwater check valves will be provided at the time the Inservice Inspection Program (ASME) is submitted. License Condition 2.C.(4) of Facility Operating License NPF-57 (full-power license) requires PSEAG to submit the Inservice Inspection Program by October 11, 1986.
Based on discussions with the licensee after the Comission briefing, the licensee has assured the staff that its comitment to perfonn valve body inspection when the valves are disassembled for maintenance is valid and has been implemented in plant procedures. Therefore, although not fully documented in SER Supplement 2, the licensee has committed to an augmented inservice inspection program, as described in the SER, for the two feedwater check valves in question.
Contact:
MC$MN Dave Waaner, NRR AoLnA11
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Chaiman Zech The staff will review this augmented inservice inspection program to assure that the comitment to inspect the feedwater check valves at the first refueling outace, and.st subsequent times when the valves ait disassembled, is included.
.....Al si med by F
. 6or5tollo Victor Stello,ilr.
Executive Director for Operations cc: Comissioner Roberts Commissioner Asselstine Commissioner Bernthal Commissioner Carr SECY OGC 6
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