ML20029A162

Forwards Coversheet for Encl 3 & Corrected Pages for Table 1 of Encl 1 of 910124 IGSCC Insp Results for Refueling Outage 7

ML20029A162
Person / Time
Site:	Brunswick
Issue date:	01/30/1991
From:	Floyd S CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NLS-91-029, NLS-91-29, NUDOCS 9102040319
Download: ML20029A162 (4)

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Carolina Power & Light Company JAN 3 0 tgM SERIAL: NLS 91 029 United States Nuclear Regulatory Commission

ATTENTION

Document Control Desk Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 1 DOCKET NO.-50 325/ LICENSE NO DPR-71 IGSCC INSPECTION RESULTS REFUELING OUTAGE 7 Gentlemen:

In a letter dated January 24, 1991, Carolina Power & Light Company provided IGSCC inspection results for Refueling Outage 7. In that letter,-the cover sheet for Enclosure 3 was inadvertently omitted (Enclosure 3 contains two SMC O'Donnell Inc. letters). The cover sheet for Enclosure 3 is enclosed for your USe.

In addition, an error to Table 1 in Enclosure 1 was discovered. This error affects Table 1 in Enclosure 1 and page 10 of Table 2 in Enclosure 1.

Enclosed are the replacement pages with the corrected Tables.

~We apologize for any inconvenience this may have caused.

Please' refer any questions regarding this submittal to Mr. D. B. Bates at (919) 546-6154.

Yours very truly, S. D. Flo Manager Nuclear Licensing Section DBB/jbw (979BNP)

Enclosures cc: Mr. S. D. Ebneter Mr. N. B. Le Mr. R. L. Prevatte 0

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ENCI4SURE 3

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NRC' DOCKET 50-32 5 /: LICENSE No. DPR +

-IGSCC INSPECTION'RESULTS--: REFUELING OUTAGE 7 FINAL DESIGN-REPORT - MECHANICAL STRESS IMPROVEMENT PROCESS SMC O'DONNELL &' ASSOCIATES. INC.

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• 1 - ENCLOSURE 1 BRUNSWICK STEAM ELECTRIC PLANT, UNIT 1 j_ NRC DOCKET 50-325 / LICEMdE NO.-DPR-71 IGSCC INSPECTION RESULTS - REFUELING OUTAGE 7 ,

_  :(1) - NUREG '0313, - Rev - 2, INSPECTION SCOPE AND RESULTS ScoDe of Examinations CP&L's_ approved (Reference 3) NUREG 0313 IGSCC Inspection' Program wasLextensively revised because of the RCRS_and Core Spray

. pipirig/ safe-end replacement, *and the commitment (Reference 1). made by CP&L to inspect the eleven (11) dissimilar metal, and four (4) similar metal-(Inconel) welds-in BSEP Unit 1 that had not previously been inspected-uaingftransducers that produce a refracted -

-longitudinal -(RL) sound ~ wave. Table 1 illustrates the revisions-to-the NUREG 0313 Inspection Program.- ,

• Two_(2) of-the eleven dissimilar metal welds (1E21FF-4-FWRNA18

_ and:1E21FF-8-FWRNB18) were replaced as part of the Core Spray-piping / safe-end replacement, s

TABLE 1 - BSEP!1 IGSCC Inspection Categories STATUS A B C D E F G TOTAL prior to' Refueling 122 0 58- 13 1 46 0 '13 270 Outage 7 Refueling Outage 7 40. 10 8 11 5 0 13 87

~nspectionsL (7) (17) (16) (24)

Current. Population 150 10 42 25 11 1 0- 239

.'TheDinspections indicated in parenthesis (XX) above are the number LofEwelds.in each_ category that were originally 1 scheduled to be inspected in.accordance-with~the NUREG 0313-Inspection Program. .The

-variations in actual inspections _ performed-versus scheduled inspections were caused by the elimination ~cuf replacement of welds-

[ by the RCr.5 and Core-Spray piping and. safe end replacement.

-Table 1 (attachea) provides a complete listing of the BSEP Unit 1,

NUREG 0313, Rev 2, IGSCC Inspection' Classifications,' including 1 Weld' numbers, IGSCC Category, joint configuration, system and inspection schedule.-

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page 10 of 10 TABLE 2

,' BBEP UNIT 1 - 10800 INSPECTION CLASSIFICATIONS IGSCC JOINT SCHEDULIsD INSPECTIONS WELD NUMBER SYS --

CATEGORY CONFIG. RPO 7 krO 8 RFO 9 RF010 RF011 IB21N4B-3-SW2-3 D TRANS/ EXT FW X X X iB21N4C-6-FWN4C225-3 D EXT /SE FW X X X 1821N4C-6-SW1-2 D SE/SE. EXT FW X X X 1821N4C-6-SW2-3 D TRANS/ EXT FW X X X 1B21N4D-5-FWN4D315-3 D EXT /SE FW X X X 1B21N4D-5-SW2-3 D TRANS/ EXT FW X X 1B3 2RECIRC-2 8 A4 (O ' LAY) E ELBO/ PIPE RCRS X X X IB32RECIRC-28A14(O' LAY) E VALV/ELBO RCRS X X 1B32RECIRC-28A15(O' LAY) E EI BO/ PIPE ' RCRS X X X 1832 RECT C-28B4(O' LAY) E ELBO/ PIPE RCRS X X X 1B32RECi - J-2888 (O'IAY) E ELBO/VALV RCRS X X 1832RECIRC-22AM3(O' LAY) E VALV/ PIPE RCRS X X 1832RECIRC-4A1(O' LAY) E WOL/ PIPE RCRS X X X 183 2 RECIRC-4 A10 (O ' IAY ) E PIPE /WOL RCRS X X E WOL/ PIPE RCRS X X X l1B3 2RECIRC-4 B1 (O ' LAY) 1 B3 2 RECIRC-4 B10 (O ' LA N ) - E PIPE /WOL RCRS X X 1B32RECIRC-28A8(IHSI) E ELBO/VALV RCRS X X 1821N4D-5-SW1-2 P SE/SE. EXT FW X X X X X l

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