ML20092H421
| ML20092H421 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/11/1984 |
| From: | Farrar D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20092H387 | List: |
| References | |
| 8759N, NUDOCS 8406260109 | |
| Download: ML20092H421 (3) | |
Text
1
) One First National Plaza. Chicago. Illinois Commonwe;lth Edison
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Address Reply to: Post Office Box 767
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Chicago. Illinois 60690 June 11, 1984 4
Mr. James G. Keppler Regional Administrator U.S. Nuclear Regulatory Commission 799 Roosevelt Road - Region III Glen Ellyn, IL 60137
Subject:
LaSalle County Station Units 1 and 2 Response to Inspection Report Nos.
50-373/84-10 and 50-374/84-13 NRC Docket Nos. 50-373 and 50-374 Reference (a):
W. D. Shafer letter to Cordell Reed dated May 10, 1984.
Dear Mr. Keppler:
This letter is in response to the inspection conducted by Messrs.
W. G. Guldemand, S. C. Guthrie, and C. Evans on March 25 through April 13, 1984, of activities at LaSalle County Station.
Reference (a) indicated that certain activities appeared to be in noncompliance with NRC reauirements.
The Commonwealth Edison Company response to the Notice of Violation is provided in the enclosure.
To the best of my knowledge and belief the statements contained herein and in the attachment are true and correct.
In some-respects these statements are not basti upon my personal knowledge but upon information furnished by other Commonwealth Edison employees.
Such information has been reviewed in accordance with Company practice and I believe it to be reliable.
If you have any further questions on this matter, please direct them to this office.
Very truly yours,
- --- i,
D. L. Farrar 8406260109 840619 Director of Nuclear Licensing PDR ADOCK 05000373 G
FDR 3
Attachment cc:
NRC Resident Inspector - LSCS JUN 15 884 8759N
4 o
ATTACHMENT Commonwealth Edison Company LaSalle County Station Units 1 and 2 Response to Notice of Violation NONCOMPLIANCE:
1.
Technical Specification 6.2A requires, in part, that detailed written procedures shall be adhered to for applicable procedures recommended in Appendix A of Regulatory Guide 1.33, Revision 2, February 1978.
Included in Appendix A of this Regulatory Guide are procedures for plant startup, shutdown and abnormal, offnormal, and alarm conditions.
Contrary to the above, the following examples of failure to adhere to procedures were identified:
a.
On March 29, 1984 the Unit 2 main steam line drain valves were discovered open in violation of procedural requirements contained in LGP l-1, " Normal Unit Startup," and LGP l-S1,
" Master Startup Checklist."
b.
On February 29, 1984 the Unit 2 Reactor Operator failed to adhere to the requirements contained in procedure LOA-MS-02,
" Recovery From a Group I Isolation," in that the main steam isolation valve control switches for the inboard valves were not placed in the closed position following receipt of a Group I isolation signal.
ITEM 1.a CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVED The main steam line (MSL) drain valves were closed immediately on March 29, 1984, the day of the event.
These MSL drain valves had been opened on March 21, 1984 to aid in draining the U-2 hotwell.
When this work was completed on March 22, 1984, the MSL drain valves were not reclosed.
CORRECTIVE ACTION TAKEN TO AVOID FURTHER NONCOMPLIANCE LGP-1-S1 is being revised so that step B.21 will provide better guidance regarding the operation of the MSL drain valves.
Additionally, training will be provided to licensed operating personnel on this event.
This training will emphasize the need for good shift relief communications and for adherence to procedures.
DATE OF FULL COMPLIANCE The revision to LGP-1-S1 should be completed by 8-31-84.
The training will be done via License Retraining Module LRRR5-84.
s 9 ITEM 1.b CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVED A review of this event was made with the operator involved.
He was instructed to respond to plant conditions by procedural guidance available.
This corrective action is complete.
CORRECTIVE ACTION TAKEN TO AVOID FURTHER NONCOMPLIANCE Had the Unit been operating and primary containment required, the operator (NS0) would have followed the procedure LOA-MS-02 which requires placing all 8 MSIV hand switches in the closed position prior to resetting isolation logic.
Since the unit was in cold shutdown and the cause of the isolation was immediately known,the operator did not refer to the procedure and reset the trip logic.
The operator was instructed to follow this procedure regardless of plant mode.
DATE OF FULL COMPLIANCE This event will be included for review with all licensed operators in requal module LRRR5-84 and the requirement to adhere to procedural guidance will be reemphasized to ensure operators respond to plant conditions by procedure.
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