ML20084B573
| ML20084B573 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 04/16/1984 |
| From: | Hall D ILLINOIS POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 0981-L, 981-1, 981-L, U-10144, NUDOCS 8404260262 | |
| Download: ML20084B573 (3) | |
Text
-
o
-I lLL/N0/S POWER COAfPANY l
.f-l 500 SOUTH 27TH STRETT, DECATUR, ILLINolS 62525 Apt-il 16, ' 1984
/
Docket No. 50-402 i
I Mr. James G. Keppler
/
Regional Administrator Region III U.S. Nuclear Regulatory Commission
~
799 Roosevelt Road Glen Ellyn, Illinois 60137
Subject:
Amended Response to Notice of Violation dated January 27, 1984, NRC IE Inspection Report Number 50-461/83-22-02
Dear Mr. Keppler:
This letter is to provide an amended response to your Notice of Violation dated January 27, 1984, Inspection Report Number 50-461/83-22.
The Notice of Violation states in part:
two cracks in the steel containment liner dome weld seam were identified in writing to the Contractor and Licensee Quality Management as early as August 1983.
The defects were identified on nonconformance reports on October 11, 1983.
As of November 30, 1983, the defects had not been reported to NRC Region III.
I.
Corrective Action Taken and the Results Achieved on July 28, 1983, a Potential 10CFR50.55(e) Deficiency
-referral of possible weld deficiencies on the containment c
dome liner was referred to Illinois Power Company for evaluation.
The specific nature, location, and quantity of weld defects were not known at the time of the evaluation.
Certain deficiencies included in the report were previously dispositioned "Use-As-Is" in accordance with the
-Nonconformance Report process.
Based upon the lack of
. specific information with which to perform an evaluation of the significance of the weld defects, the referral was evaluated as not reportable under the provisions of 10CFR50. 55 (e).
The referral was returned to the constructor with directions to continue investigating the issud and to resubmit the referral if warranted by the-discovery of additional details.
I 8404260262 840416 I O PDR-A DCK 05000461
_G PDR._.
i
Mr. James G. Keppler During the months of August, September, and October 1983, an Illinois Power Company approved plan was implemented to further investigate the potential weld deficiencies.
More details regarding the nature of the weld defects began to appear, including the existence of cracks.
According to the plan, a nonconforming condition was to be documented on a Nonconformance Report after the condition was identified and evaluated.
The evaluation was intended to prevent duplicate resolutions for conditions previously dispositioned by the subcontractor who performed the original work.
Upon completion of all plan actions, the results would be subjected to a review for 10CFR50.55(e) reportability.
As a result of the actions taken in accordance with the plan for investigating the potential weld deficiencies, a Nonconformance Report was prepared on October 11, 1983 documenting the existence of cracks.
The Nonconformance Report was progressing toward evaluation for 10CFR50.55(e) reportability when the NRC Inspector inquired into the status of the investigation.
An informal review of the existing documentation was made, and the determination was again made that sufficient information was not available to determine if a potentially significant deficiency existed.
Additional research concluded on November 30, 1983 that a potentially significant deficiency existed.
On December 1, 1983, Illinois Power Company notified the NRC Region III of a potentially reportable deficiency (55-83-10) in accordance with the provisions of 10CFR50.55(e).
To determine whether other reportable /potentially reportable conditions exist, a review of past issues determined not to be reportable under 10CFR50.55(e) due to lack of sufficient information, has been completed.
No other cases were found.
II.
Correccive-Action to be Taken to Avoid Further Noncompliance Personnel knowledgeable in the existence of the cracks failed to document the nonconforming condition in a timely manner.. Appropriate inspection personnel were retrained in the requirement to document known nonconforming conditions
,in accordance with procedure BAP 1.0, Nonconformances.
Also, licensee Quality Assurance personnel received training.
in the evaluation of referred conditions suspected of being reportable as required by 10CFR50.55(e)..The above training was. completed on March 31, 1984.
-Additionally, Illinois Power Quality Assurance Procedure'QAP
-116.04, " Reporting.of Deficiencies per 10CFR50.55(e)", was revised on' February 14, 1984, to incorporate timely evaluation of referred conditions to Illinois. Power Company under the ' provisions of 10CFR50.55(c).
The revision implemented a five-(5) working day evaluation period of referred conditions for reportability.
If at any time during the five-(5) working day period the condition is
Mr. James G. Keppler determined to be reportable /potentially reportable, the Nuclear Regulatory Commission will be promptly notified within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the determination.
If sufficient information is unavailable to determine the reportability of the condition at the end of the five (5) working day evaluation period, the condition will be considered potentially reportable, and the Nuclear Regulatory Commission shall be notified within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
III. Date When Full Compliance Will Be Achieved Illinois Power Company was in compliance on March 31, 1984.
I trust that our amended response is satisfactory to allow closure of the items of noncompliance identified in the Notica of Violation.
Sincerely yours, D.
Iall Vice President LCF/ lag
~
~
cc: = Director,. Office of:I&E,;US NRC, Washingt'on,'DC--20555,
NRC Resident Office
~
Illinois Department of Nuclear Safety
._.m