ML18005A222
| ML18005A222 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 11/03/1987 |
| From: | Reyes L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Utley E CAROLINA POWER & LIGHT CO. |
| References | |
| NUDOCS 8712020146 | |
| Download: ML18005A222 (4) | |
Text
NOV 0 3 1987 Docket No. 50-400 License No.
NPF-63 Carolina Power and Light Company ATTN:
Mr. E.
E. Utley Senior Executive Vice President Power Supply and Engineering and Construction P. 0.
Box 1551
- Raleigh, NC 27602 Gentlemen:
SUBJECT:
MEETING
SUMMARY
- HARRIS NUCLEAR PLANT - DOCKET NO. 50-400 This letter refers to the meeting conducted at our request in the Region II office on October 21, 1987.
The meeting involved a technical presentation and discussion on the identification and resolution of a DC power design problem effecting auxiliary feedwater flow.
It is our opinion that this meeting was beneficial, and provided a better understanding of this problem, as well as your subsequent interaction with the NRC Office of Nuclear Reactor Regulation (NRR) and the final resolution of the problem.
In accordance with Section 2.790 of the NRC's "Rules of Practice,"
Part 2, Title 10, Code of Federal Regulations, a copy of this letter and its enclosures will be placed in the NRC Public Document Room.
Should you have any questions concerning this matter, we will be pleased to
'discuss them.
Sincerely, Luis A. Reyes, Director Division of Reactor Projects
Enclosures:
1.
Meeting Summary 2.
List of Attendees cc w/encls:
R. A. Watson, Vice President Harris Nuclear Project D. L. Tibbitts, Director of Regulatory Compliance J. L. Willis, Plant General Manager bcc w/encls:
(See page 2)
S7i2020146 S7ii03 PDR ADOCK 05000400 P
NOV 03 1SN ENCLOSURE I MEETING
SUMMARY
The NRC opened the meeting by stating that, although this issue had been discussed in detail with NRR and had been apparently satisfactorily resolved, Region II did have interest in the technical issues involved and their subse-quent resolution.
Carolina Power and Light Company (CPSL) began their discus-sion by describing how the issue was identified.
During a safety analysis review involving an unrelated
- issue, CPSL reviewed initiation and operability of the Auxiliary Feedwater System (AFW).
This review revealed that during an
- event, in which loss of power was coincident with loss of the "B" vital DC power
- system, all AFW flow would be isolated.
In concert with
- NRR, CP8L reviewed and analyzed the problem and potential solutions.
The modification to resolve this design defect involved a
change to the AFW isolation logic to eliminate a single failure inadvertent isolation of AFW.
This information was documented in a
10 CFR 21 report from CP&L to Region II dated September 22, 1987.
CPSL stated that a supplement to this letter would be issued soon,'xplaining why this particular problem was not initially considered in the design of Shearon Harris.
Region II then concluded the meeting.
NOV 03 1987 ENCLOSURE 2
LIST OF ATTENDEES CPSL M. A.
R. A.
- 0. L.
S.
R.
H.
W.
D.
C.
C.
S.
G. A.
McDuffie, Senior Vice President - Nuclear Generator
- Watson, Vice President - Harris Nuclear Power Plant Willis, Harris Plant General Manager 2immerman, Manager - Nuclear Licensing Bowles, Assistant to Chairman/President McCarthy, Principle Engineer - Nuclear Licensing
- Bohanan, Harris Director of Special Projects
- Sinders, Director-Harris Visitors Center NRC Re ion II P.
E. Fredrickson, Section Chief, Division of Reactor Projects (DRP)
G.
F. Maxwell, Harris Senior Resident Inspector, DRP S.
P. Burris, Harris Resident Inspector, DRP S. J. Vias, Project Engineer, DRP N. Merriweather, Reactor Inspector, Division of Reactor
- Safety, (DRS)
A. B. Ruff, Reactor Inspector, DRS NRC Head uarters B.
C. Buckley, Harris Project Manager, NRR W.
M. Troskosky, Regional Coordinator, Office of the Executive Director for Operation
Carolina Power and Light Company NOV OS lSII7 bcc w/encls:
C. Barth, OGC NRC Resident Inspector A. Upchurch, Chairman, Triangle J Council of Governments Document Control Desk State of North Carolina RI I PFr ri kson:er 10/P /87 RIIq DVerrelli 1)/ g /87 C.o
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