ML20064F972
| ML20064F972 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/09/1978 |
| From: | Gilleland J TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20064F969 | List: |
| References | |
| NUDOCS 7812060074 | |
| Download: ML20064F972 (4) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE $74ol 830 Power Building November 9, 1978 "
Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street.
Atlanta, Georgia 30303
Dear Mr. O'Reilly:
SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 - NRC-0IE INSPECTION REPORT 50-327/78-14 AND 50-328/78 REVISED RESPONSE TO INFRACTION This is in response to C. E. Murphy's letter dated October 2, 1978, requesting information.in addition to that presented in our July 21, 1978, respense to this infraction. Enclosed is our revised response to this infraction.
If you have any questions concerning this matter, please get in touch with M. R. Wisenburg at FTS 854-2581.
Ver" tre y yours,
/
. Gill' eland Assistant Manager of Power
' Enclosure cc:
Mr. John G. Davis, Acting Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Co=nission Washington, DC.-20555
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ENCLOSURE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 NRC-0IE' INSPECTION REPORT 327/78-14 AND 328/78-10 RESPONSE TO INFRACTION Infraction--327/78-14-01~,' 328/78-14-01 10 CFR Part 50, Appendix B, Criterion XVI, as inplemented by PSAR Section 17.lA.16, states in part. that, " measures shall be established to assure
_ that conditions adverse to quality are promptly identified and corrected."
SNP Construction Procedures P-2 and DEC-QAP 16.02 specify the corrective action required to prevent recurrence.
Contrary to the above, the licensee's corrective actions have not been effective in preventing recurrence in the following areas.
1.
S=all diameter pipe (instrument tubing) was found distorted and not
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properly protected.
2.
Welder's cables were found in contact with the reactor coolant pipe.
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Corrective Steps Which Have Been Taken and Results Achieved 1.
To physically protect small diameter piping and instrument sensing lines:
Craft employees have been instructed to take appropriate measures to protect all1per=anent equipment'(including small diameter piping and instrument sensing lines) while work is in progress. Routine storage and maintenance surveillance will be performed in accordance-with SNP Construction Procedures P-6 and P-12 and documented in accordance with SNP Inspection Instruction No. 32 to confirm compliance with these requirements.
l 2.
To protect permanent equipment and stainless steel piping from are damage due to electrical cables:
l A. complete survey of the powerhouse area has 'been made and all cable l'
reooved from close proximity to stainless steel piping-and other permanent equipment where electrical arc damage might occur.
Corrective Steps Which Shall Be Taken to Avoid Further Noncompliance
- 1. ~ To physically protect s=all diameter piping and instrument sensing lines:
l L.
Two crafts people have been assigned full-time responsibility for surveillance of small diameter piping, including instrument sensing lines, in the area of the powerhouse. These two people are assigned to locate and correct damaged and open piping in the powerhouse area.
specific inspections are performed by the inspection units every two weeks to detect and report any violations or borderline cases.- These are reported and controlled in accordance with Construction Procedure P-6 and Inspection Instruction II-32.
Damages found by this surveil-lance on features that have been accepted by previous inspections are treated as nonconforming items in accordance with Construction Procedure P-2.
System engineers have been reinstructed in the importance of damage to installed features. Any conditions discovered by thes,e engineers in the perforalnce of their duties are immediately repaired, replaced, or.
designated nonconforming.in accordance with appropriate construction procedures.
2.
To protect permanent equipment and stainless steel piping are damage due to electrical cables:
Three crafts people have been assigned the full-time responsibility for surveillance and corrections of conditions that might result in electrical are damage to permanent equipment and stainless steel piping.
Inspection of electrical cables that might cause arc damage has been added to the surveillance inspection report submitted by welding inspectors during each shift, when welding is performed.
Corrective action is initiated immediately upon -discovery.
Additionally, all craf t foremen have been instructed that electrical cords are not to come in contact with stainless piping and safety-related equipment and to take the necessary immediate action to remove all electrical cords that are in contact with stainless piping and/or saf ety-related equipment within their work area. Each foreman has been informed that he will be held personally responsible for any violations by employees under his supervision. The electrical department will submit a daily report to the Assistant Construction Superintendents.
All cases where personnel have allowed electrical cords of any type to remain in contact with stainless piping or safety-related equipment will be dealt with on an individual basis with the necessary support and enforcement of upper management.
To determine the ef fectiveness of the above action, QC inspection i
personnel shall perform a weekly inspection and submit a report for the evaluation of the Construction Engineer and Superintendent.
Date When Full Compliance Will Be Achieved j
1.
We are now in full compliance.
2.
We are now in full compliance.
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