ML18003A794

Deficiency Rept:On 791126,identified Defective Welds on Nine Seismic Class 1 Hangers.All Corrective Action Estimated for Completion by 800131,when Final Rept Will Be Submitted

ML18003A794
Person / Time
Site:	Harris
Issue date:	12/19/1979
From:	Chiangi N CAROLINA POWER & LIGHT CO.
To:
References
NUDOCS 8001110634
Download: ML18003A794 (6)

Text

REGULATORY I )RMATION DISTRIBUTION SYST (RIDS)

ACCESSION NBH;8001110630 DOC ~ OATh: 79/12/19 NOTARIZED; NO DOCKET PACYL:50 000 Shearon Harris Nuclear Powei Plant~ "Onit i~ Carolina 05000~oil AOl'H e NAME AUTHOR AFFILIATION

. CFI1ANGlrN,J. Carot ina Power C Light Co, RECII, NAME AECIPIENf AFFILIATION

SUBJECT:

Interim rept re defective welds on nine Seismic Class 1 hangers'll correcti've'ction estimated foi comp/etion by 800131~when final rept will be submitted, DISTRIBUTION CODE: B019S COPIES RECEIVED:LTR -

ENCL SIZE+

TIl'I E: Construction Deficiency" Aeport (lUCFA50 55E)

NO T hS + mwmoeeeeweseemeem~remmmre RECIPIENT COPIES RECIPIENT COPIES ID'CODE/NAME LTTH ENCL ID"LODE/NAME LlTA ENCL.

ACT ION; 14 PM ~~~W~Ct BCl w'A 4=V 3 20 LA l ~ra.W ~ AD L ~ra INTERNALo 01 1 02 NRC PDR 0 2 07 EDO E STAFF 08 MPA 1 09 DEPY DIA DPM 10 QAS 1 11 STANDRDS DEV i2 JORDANgE/IE i, 13FIELD COOR/iE 16 AD F'OA ENGR 1 17 AD PLANT SYS 17 AO REAC SF1'Y i 22 DIR DPI" 23 OELD 1 AD/SITE TECH DIRECfOR DSE i GEObCIENCES BR IBC SYS BR 1 MATC ENG BA MECH ENG BH i PONhR SYS BR S HANAUER 1 Sl'RUCT hNG 8R EXTERNAL:

03 LPDR 1 00 NSIC 24 ACRS 16 1 TOTAL NUMBER OF COPIES l<EQUIRED: LT1'R 07 ENCL If@

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p' r(- pig,OKER Carolina Power 8 Llglit'Cc@pany-December 19, 1979 pl P )fan@ $ ; p 2 Mr. James P. O'Reilly United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest Atlanta,Georgia '30303 DEFECTIVE SEISMIC CLASS I HANGER WELDS - INTERIM REPORT

Dear Mr. O'Reilly:

In accordance with 10CFR50.55(e), the Region II office (Mr. R. Bradley) was officially notified of the subject deficiency as being a "potentially reportable" item on November 2, 1979. At this time, Mr. R. Bradley was informed that field welds on 9 Seismic Class I hangers were noted by a QA Inspector to be rejectable per the visual acceptance criteria of AWS D 1.1 and that these welds had previously been accepted by a QA Inspector who is no longer working for the Carolina Power & Light Company. On November 26, 1979, the Region II office (Mr. R. Bradley) was officially notified that the subject deficiency was considered report-,

able under the provisions of 10CFR50.55(e).

The intent of this letter is to inform you that all corrective action has not been completed on this item due to the extensive nature of the rework. The current status of corrective action on the subject deficiency is as follows:

l. A 100% inspection revealed that there are 331 such hangers in question which had previously been inspected by this QA Inspector.

2. 192 out of these 331 hangers on subsequent reinspection have now been rejected for defective welds.

3. Approximately 135 of these 192 hangers have, to date, been reworked.

4., Out of approximately 135 hangers reworked, approximately 67 have been reinspected and found acceptable. Inspection on the remaining approximately 68 reworked hangers has not been completed. pk O

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pic~ipse 8001110 411 Fayettevitte Street ~ P. O. Box 1551 ~ Raleigh, N. C. 27602

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Mr. J. P. O'Reilly December 19, 1979 It is estimated that all corrective action on this item will be completed by January 31, 1980. Upon completion of corrective action, the final 10CFR50.55(e) report will be submitted. In the meantime, we will routinely keep you appraised of our progress on this item during your site inspection visits.

If you have any questions regarding this matter, please do not hesitate to contact me.

Yours very truly, N. J. Ch gi Manager Engineering & Construction Quality Assurance KVH/bd (042/860) cc: Mr. V. Stello (2)

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