ML17191A957
| ML17191A957 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 10/30/1998 |
| From: | Ring M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML17191A958 | List: |
| References | |
| 50-237-98-24, 50-249-98-24, NUDOCS 9811050151 | |
| Download: ML17191A957 (3) | |
See also: IR 05000237/1998024
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION'
REGION Ill
Mr. Oliver D. Kingsley
President, Nuclear Generation Group
. Commonwealth Edison Company
ATTN: Regulatory Services
Executive Towers West Ill
. 1400 Opus Place, Suite 500
Downers Grove, IL 60515
801 WARRENVILLE ROAD
LISLE, ILLINOIS 60532-4351
October 30, 1998
SUBJECT:
DRESDEN INSPECTION REPORT 50-237/98024(DRP); 50-249/98024(DRP)
Dear Mr. Kingsley:
On August 25 through October 6, 1998, the NRC performed an inspection at your Dresden *
Nuclear Power Station. The enclosed report presents the results ofthis inspection.
During the inspection period, a safety-consciol!S approach characterized the overall conduct of
activities at the Dresden station. No cited violations of NRC requirements were identified.
Howev~r. sever.al issues demonstrated that challenges to smooth operation remained at the
station. For example, problems with the reactor recirculation system resulted in power
reductions and significant work on the reactor recirculation control system. Failures in the rod
block monitor systems for both units prevented withdrawal of control rods. The inspectors
identified an inoperable control rod and the Dresden staff identified that the reactor building -
. suppression chamber vacuum breakers had not been proven operable.
Early in the inspection period, we noted several concerns with non-licensed operator
performance involving manipulation of the wrong component and incorrect valve positions.
These items were of concern to us because of previous operator errors in failing to recognize *
entries into Technical Specification limiting conditions for operation. Your initial corrective
actions appear to have been effective at stopping this emergent trend. Also, we noted that
during this inspection period, no instances occurred where licensed reactor operators failed to
recognize conditions that required entry into Technical Specification limiting conditions for
operation. While your actions to stop and reverse this trend appeared to have been initially
effective, we encourage you to ensure that the positive results obtained to date continue for the
long term.
While the performance of the operations department improved, the performance of the
electrical maintenance department declined. Your staff identified multiple instances of
fundamental errors committed by electrical maintenance staff. We understand you are in the
process of implementing corrective actions in this area and we would intend to monitor these
actions in future inspection periods .
9811050151 981030
ADOCK 05000237
G
' _,.
0. Kingsley
-2-
In accordance with 1 O CFR 2. 790 of the NRC's "Rules of Practice," a copy of this letter and its
enclosure will be placed in the NRC Public Document Room.
- Sincerely,
/s/ Mark A. Ring
Mark A. Ring, Chief
Reactor Projects Branch 1
Docket Nos.: 50-237; 50-249
Enclosure:
Inspection Report 50-237/98024(DRP);
- 50-249/98024(DRP)
cc w/encl:
D. Helwig, Senior Vice President
H. Stanley, PWR Vice President
C. Crane, BWR Vice President
R. Krich, Regulatory Services Manager
D. Greene, Licensing Director
DCD - Licensing
M. Heffley, Site Vice President
P. Swafford, Station Manager
F. Spangenberg, Regulatory
Assurance Manager
R. Hubbard
M. Aguilar, Assistant Attorney General
State Liaison Officer
Chairman, Illinois Commerce Commission
DOCUMENT NAME: G:\\dres\\dre98024.drp
To receive e copy of this document, lndlcete In the box *c* a Copy without ettechment/enclosure. "E" a Copy with attachment/enclosure
"N" a No co
OFFICE
Riii
NAME
DATE
1 O/Z'i>/98
OFFICIAL RECORD COPY
0. Kingsley
Distribution:
SAR (E-Mail)
RPC (E-Mail)
Project Mgr., NRR w/encl
J. Caldwell, Riii w/encl
C. Pederson, Riii w/encl
B. Clayton, Riii w/encl
SRI Dresden w/encl
DRPw/encl
TSS w/encl *
DRS (2) w/encl *.
RI 11 PRR w/encl
- PUBLIC IE-01 w/encl
Docket File w/encl
GREENS
IEO (E-Mail)
DOCDESK (E-Mail)
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