ML17310A367

Forwards Preliminary Data from SG Tube Rupture Investigation.Bend Areas Outside Arc Due to Bobbin Indication or Random Mrpc Sampling

ML17310A367
Person / Time
Site:	Palo Verde
Issue date:	06/23/1993
From:	Bradish T ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
102-02546-TRB-J, 102-2546-TRB-J, NUDOCS 9306300023
Download: ML17310A367 (12)

Text

ACCELERAT+IDOCUMENT DIST RUTION SYSTEM REGULATORY INFORMATION DISTRIBUTION ZSTEM (RIDS)

ACCESSION NBR:9306300023 DOC.DATE: 93/06/23 NOTARIZED:

NO DOCKET FACIL:STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 AUTH.NAME AUTHOR AFFILIATION BRADISH,T.R.

Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards preliminary data from SG tube rupture investigation. Bend areas outside arc due to bobbin indication or random MRPC sampling.

DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution NOTES:Standardized plant.

05000529 RECIPIENT ID CODE/NAME PDV LA TRAMMELLiC INTERNAL: ACRS NRR/DRCH/HICB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS1 EXTERNAL: NRC PDR COPIES LTTR ENCL 1

1 2

2 6

6 1

1 1

1 1

1 1

0 1

1 RECIPIENT ID CODE/NAME PDV PD TRAN,L, NRR/DE/EELB NRR/DRPW/OTSB NRR/DSSA/SRXB O/

REG FILE'1 NSIC COPIES LTTR ENCL 1

1 2

2 1

1 1

1 1

1 1

0 1

1 1

1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEI CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDf TOTAL NUMBER OF COPIES REQUIRED:

LTTR 23 ENCL 21

Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O. BOX 52034

~

PHOENIX, ARIZONA85072-2034 102-02546-TRB/JR P

June 23, 1993 U. S. Nuclear Regulatory Commission ATiN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 2 Docket No. STN 50-529 Preliminary Steam Generator Information File: 93-056-026 The purpose of this letter is to provide you data from the PVNGS Unit 2 Steam Generator tube rupture investigation.

Please note that this information is in preliminary form and has been marked as such.

A summary list is also enclosed for your information.

Should you have any questions, please contact J. R. Provasoli at (602) 393-5730.

Sincerely, TRB/JR P/ap Enclosure Thomas R. Bradish, Manager Nuclear Regulatory Affairs cc:

B. H. Faulkenberry C. M. Trammell K. E. Perkins J. A. Sloan o<

050b30002,Io5000529 2g q30b2$

PDR ADQCK; 8

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Information discussed on conference call with the NRC on Tuesday June 22, 1993 Map ¹ 1 -

Tubes in the arc of interest both done and to be done.

(BW-VS Bend examine)

Map ¹ 2 -

Tubes in S/G ¹ 2 which have been examined in the BW-VS Bend area.

Map ¹ 3 -

Tubes in S/G ¹ 1 which have been examined in the BW-VS Bend area.

Note Bend areas examined by MRPC outside the arc were due to bobbin indication or random MRPC sampling.

Location of 3 MRPC indications in Bends:

¹ 1

S/G 141-104 BW 1 + 3.25"

¹ 2 S/G 129-136 BW 1 + 6.96" 123-144 BW 1 + 5.6"

.31" Long No Deposit

.76" Long No Deposit

.60" Long

. No Deposit

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~

~

04/93, ARIZONA PUBLIC SERVICE, PALO VERDE, UNIT 2 N/.

STEAM GENERATOR:

21 PROC:

73TI-BRC01-Rev.7 CRITERIA:

TUBES TO BE EXAMINED TO THE 1st VS IN ARC AREA DATE: 06/22/93 TIME:

15: 31: 45 STAYS 150 140 130 120 iio 100 90 80 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 60 50 40 30 20 10 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 CONAN NUCLEAR.

INC. BN

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04/93, ARIZONA PUBLIC SERVICE, PALO VERDE, UNIT 2 STEAM GENERATOR:

22 LOCATION:

ALL CRITERIA:

PR08E

= 580RP DATE: 06/23/93 TIME:

09: 04: 39 STAYS 195

+

580RP 1458

+

150 150 140 140 130 130 120 120 110 110 100 100 90 90 80 80 70 60 70 ~

60 50 50 40 40 30 30 20 20 10 10 I

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10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 CONAN NUCLEAR, INC.

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P5 04/93, ARIZONA PUBLIC SERVICE, PALO VERDE, UNIT 2 STEAM GENERATOR:

21 LOCATION:

ALL CRITERIA:

PROBE

~ 5BORP DATE: 06/23/93 TIME:

09: 1B: 31 STAYS 114

+

580 RP 2050

+

150 150 140 140 130 130 120 120 110 110 100 100 90 90 80 70 80 0 66 60 50 50 40 30 30 20 20 10 10 I

I I

I I

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I 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 CONAM NUCLEAR.

INC. Bll/

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