ML20215H334
| ML20215H334 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 10/21/1986 |
| From: | Taylor J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | White S TENNESSEE VALLEY AUTHORITY |
| Shared Package | |
| ML20214Q673 | List: |
| References | |
| NUDOCS 8610230116 | |
| Download: ML20215H334 (5) | |
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5'i a' October 21, 1985
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Docke t nos.: 50-327 and.50-328 Tennessee Valley Authority ATTH:
Mr. Steven A. White Manager of Nuclear Power 5H.38A Lookout Place 1101 Market Place Chattanooga, Tennessee 37402-2801 Gentlemen:
A procurement and quality assurance records inspection at Secuoyah Nuclear
.. " Plant, Units I and 2, by the Office of Inspection and Enforcement was con-The ourpose of ducted September 15-19 and September 29-October 3, 1985.
this inspection was to review Tennessee Valley Authority's (TVA) correc ive at:1on to Nuclear Safety Review Staff (NSRS) Reports R-Si-17-NFS, I-53-13-NPS and R-E5-07-NPS..The inspection included a review of contracts for original and replacement ecuipment, maintenance recuests, quality assurance program repu1rements, site procurement procedures and practices, a
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Abercrombie and other members of your staff to discuss the inscection findings cocumentation.
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A summary of the more sionificant items identified and observations tg date.
and discussed du' ring this p.eeting is enclosed.
Your attention is directed to the. team's concern regarding the possible decre-dation of the seismic and environmental qualification of previously cualified Two. mechanisms through' which this degradation can occur were
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(1) replacement of previously qualified equipment.
observed during the inspection:
" devices" with devices procured commercial grade without adequate dedication.
by TVA prior to placing the device in service (see Ex
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fied devices without evaluating the effec: of the piece part on the cualification 4,
of the device or adecuately dedicating the piece part (see Examples _1, 2, 3 The team is also concerned with TVA's inability to 5, and 7 of Enclosure A). retrieve quality assurance records (see Ex
- The results of the inspection indicated that prior to the March 1955 revision tic
. of 50A 45, " Quality Con:r:1 of Material, Part,s, and Service piece par:s for safety-related applications, particularly when seismic and 3
environmental qualifica:1on was recuired.
The team noted that Secuoyah so-w-*
personnel had started a review of Class IE replacement devicoeAs CE3 V ED I
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, October 21, 1985 Tennessee Valley Authority k
completed that review nor investigated the effect of piece part replacement In licht of these on seismically or environmentally qualified ecuipment. finding lled ecuip-to verify that the seismic and environmental cualification of instaYo.u ment has not been degraded.
packages for commercial grade replacement devices alreacy identified and the impicmenta tion of-the procuremen^-program described in the M revision of SQA 45 will be reviewed before plant startup.
Additional detail on the enclosed procurement findin be issued in the near future.
Sincerely,
/
fGn'f James M. Tayla, Director O'fice of Ins"pection and Enforcemen:
Enclosure:
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Procurement Inspection
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SEQUDYAH HUCLEAR POWER PLANT
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Ut!ITS 1 AND 2 PROCUREMENT INSPECTION
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SEPTEMBER 15-19, 1986 SEPTEMBER 29-0CTCBER 3, 1935 Procurement Findinos A.
Steam Generator Level Solenoid Valve (2-LSV-003-017al:
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was issued on 12/2/E5 to replace Maintenance Recuest (MR) A593379 l
the coils in this ASCO solenoid valve, which provides a controThe MR wa function for the fiain Steam Isolation Valves.The valve was a seismically and
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"QMOS" and "10 CFR 50.49 Device." environmentally c located in a harsh environment, 'the West Valve Room.
Replacement coils, because they do not have a'unicue plan fication number, are considered " piece parts" by Tennessee V Authority (TVA) and are purchased OA Level II, no documentatio Replatino the coils in this valve would have degraded
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n the previous cualification of this valve since TVA had no cocume -
required.
toils purchased commercial grade would
--k tation or assurance tha: continue to function during or af ter a seis exposure t'o a harsh environment:
Only the f act that craftsmen could not remove the toil sub with the tools supplied for the job and therefo instiTied qualified equipment.
Reactor Trio Bvoass Breaker B (2-sKRC-099-KH/319-G 2.
TVA ordered tIndervoltage trip attachments On contract S4P54-343921 (U'/TAs) for the reactor trip bypass breaker as QA Level II, no 21 not applicable. This was just documentation recuired, Par:af ter Generic Letter E3-28 was i Fortunately, to be considered safety-related,1E equipment.
Mestinghouse self-imposed an Appendix B cuality assurance progr li-which provided the controls necessary to maintain Class IE oua fication and provided documentation of that qualifica: ion.
TVA installed a UVTA (5/N DEYN212-64 On 5/24/85, under MRA-101112,However, UVTA (5/N 02YN212-64) is n on this breaker.
the Certification of Oualification received under the con d
mentioned above, which was referenced en TVA's Form 575 ass with this maintenance request.
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g Reactor Vent Board 23-B (2-500-201-J-0-B):
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for the reactor vent board motor control cen:ers ~
The original contrac:
required manuf acturing under an Appendix B quality assurance prog and seismic qualification.
for an overload trip unit on the normal feed breaker, a IE breaker, The overload--crip units had been purchased as
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this vent board.
piece parts, QA Level II, no documentation required.
6.9 KV tocic Relav Panel (2-FitLB-202-SC A1:
4, The original contract for the 6.9 KV logic relay panels recuired manuf acturing under an Appendix B quality assurance program and The panel and the relays were cualified seismic qualification.
separately. On MR A-019533, completed 5/6/52, TVA replaced an
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The relay was purchased as a piece auxiliary relay on the panel.
part, OA Level II, no documentation required, under contrac:
Boric Acid Transfer Pumo Motor (2 MTRE-62-230A1:
5.
The boric acid trcnsf er pump motor was originally s NESS con:ract.
On MR A-OS0011, Westinghouse su plied a Certificate of Qualification y-82P64-323717.
Because a no documentation required, under contrat:
TVA comple'ted SQMP Al-11, Attachment 10,
- However, Form," to document the review of the motor de Applicable" and no additional documentation indicating whether a mo detaiJed review was performed could be located..
5.
' Diesel Generators:
On the ' original contract for the diesel generators to Bruce-GM, contrac the specifica icn requires that all e uipment be designed f51-92652, to withstand and operate af ter a seismic event and ictesed an On RD-5794S9, -
Appendix B quality assurance program on the vendo These motors have been QA Level II, no documentation re uired.
reolaced many times under numerous MRs.
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' Shutdown Board 2A-A Looic Relav Panel (2-BDA-202-CD A1:
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As part of the inspection the team selected a number of items in the plant and tried to trace those items back through the pro:uremen:
Two of the items selected were Agastat relays, model loca ted in shut-process.
f7012PD, serial numbers (5/N) 81031110 and 50362242, down board ZA-A.
These relays are in the con rol logi circuits f or
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the essential raw cooling water and the component cooling wa er systems, respectively, which are IE saf ety-related functions.
Although recuested during the first week of the inspection TV documents for was not able to identify or produce the procurement It should be noted that Amerace, the relay manu-f acturer, indicates 1E qualification of their product by precee these relays.
l were the model number with an "E" end that the relays in the paneAf ter compl 61031110 and 80362 not marked as such.
contacted Amerate and confirmed that relays E during the third were manufactured.as commercial 9,ade, not I,
ly.
These r
i week of 1981 and the thirty-sixth. week of 198
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i required.
were probably procured QA Level II, no documentat on RHR lsolation valve (2-FCV-7!--11:
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f MR A-10737, dated 8/20/53, for the fabri h procedure perf ormed on 8/20/E3 (Report (R-0586) in accordance w p-yT-I, Rhvision 4. course of the inspe : ion but TVA was not e,
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