ML16161A810
| ML16161A810 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/05/1987 |
| From: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Tucker H DUKE POWER CO. |
| Shared Package | |
| ML16161A811 | List: |
| References | |
| EA-87-043, EA-87-43, NUDOCS 8705190272 | |
| Download: ML16161A810 (3) | |
See also: IR 05000269/1987002
Text
MAY0 5 1987
Docket Nos. 50-269, 50-270, 50-287
License Nos. DPR-38, DPR-47, DPR-55
EA 87-43
Duke Power Company
V/ATTN:
Mr. H. B. Tucker, Vice President
Nuclear Production Department
422 South Church Street
Charlotte, NC
28242
Gentlemen:
SUBJECT:
(INSPECTION REPORT NOS.
0-269/87-02 50-270/87-02 AND 50-287/87-02)
This refers to the Nuclear Regulatory Commission (NRC) inspection conducted
on January 26-30, 1987 at the Oconee Station. As a result of this inspection, a
failure to comply with NRC regulatory requirements was identified. The report
documenting this inspection was sent to you with a letter dated February 19, 1987.
NRC concerns relative to the inspection findings were discussed by L. A. Reyes,
Director, Division of Reactor Projects, NRC, Region II, with R. B. Priory, Vice
President, Design Engineering, in an Enforcement Conference held on March 6, 1987.
A summary of this Enforcement Conference was sent to you by a letter dated
March 25, 1987.
The violation described in the enclosed Notice of Violation involved a failure
to provide the alternate shutdown capability with the required independence of
cabling for reactor coolant letdown valves. The licensee took prompt corrective
action to remedy any potential problems which may have occurred in the event
of a fire, which included closing the appropriate valves and de-energizing the
power supply to the motor operators for the valves involved. The cause of the
violation was the use of improper assumptions when preparing Appendix R fire
protection analyses. We are also concerned with your fire hazards analysis
which did not recognize a condition that could have affected the ability to
maintain reactor coolant inventory. While not a violation, the fire hazards
analysis did not consider circuit failure modes which could cause spurious
operation of valve operator motors for the decay heat removal suction isola
tion valves. It was fortuitous that an after-the-fact analysis indicated
that simultaneous opening of the valves, which provide a high to low pressure
system interface, would not take place during a fire.
In accordance with the "General Statement of Policy and Procedure for NRC
Enforcement Actions," 10 CFR Part 2, Appendix C (1987) (Enforcement Policy),
the violation described in the enclosed Notice has been classified at a
Normally, a civil penalty is proposed for a Severity
Level III violation. However, after consultation with the Director, Office
of Enforcement, and the Deputy Executive Director for Regional Operations, I
have decided that a civil penalty will not be proposed in this case because
unusually prompt and extensive corrective actions were initiated to prevent
recurrence, and because your prior performance in the area of fire protection
has been good.
8705190272 870505
ADOCK 05000269DR
I
Duke Power Company
-
2 -
MAY 0 5 1987
You are required to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response. In your
response, you should document the specific actions taken and any additional
actions you plan to prevent recurrence. After reviewing your response to this
Notice, including your proposed corrective actions, the NRC will determine
whether further NRC enforcement action is necessary to ensure compliance with
NRC regulatory requirements.
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 enclosure
will be placed in the NRC Public-Document Room.
The responses directed.by this letter and its enclosure are not subject to the
clearance procedures of the Office of Management and Budget as required by the
Paperwork Reduction Act of 1980, Pub. L. No.96-511.
Sincerely,
ORIGINAL SIGNED BY
A.F. Gibson
J. Nelson Grace
Regional Administrator
.
Enclosure:
Ic w/encl:
M. S. Tuckman, Station Manager
05/01/87
14:36
NRC-M&M-MNBB
NO.032
002
.
, ,Duke
Power Company
- 3 -
MAY 0 5 1987
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