ML19256C969

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PNO-79-172:radiography Identified Cracks in Four Feedwater nozzle-to-feedwater Pipe Welds in Heat Affected Zone.Largest Crack Is 15 Inches Long.No Depth Info Is Available.Addl Info Is Not Available
ML19256C969
Person / Time
Site: Salem PSEG icon.png
Issue date: 06/19/1979
From: Klingler G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
References
PNO-79-172, NUDOCS 7910150799
Download: ML19256C969 (1)


Text

PRELIMINARY NOTIFICATION June 19, 1979

[f PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-79-172 This preliminary notification constitutes EARLY notice of an event of

[

POSSIBLE safety or public interest significance.

The information v

presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.

Facility: Salem Nuclear Generating Station, Unit 1 Hancocks Bridge, New Jersey Docket No. 50-272

Subject:

FEEDWATER PIPE CRACKS Radiography of the four Steam Generator (S/G) feedwater nozzle-to-feedwater pipe welds has revealed circumferential crack indications in the heat affected zone on the feedwater pipe side of S/G Nos. 11, 13, and 14.

The largest crack indication found by radiography is an intermittent one on S/G #14 approximately 16 inches long. The crack on S/C #13 has been confirmed by ultrasonic test (U/T) and is 5 to 6 inches long.

Due to system configuration no depth information could be obtained.

U/T has confirmed that no cracks exist in S/G #12. U/T is continuing on S/G Nos. 11 and 14.

Additional detailed information is not available at this time.

Media interest is expected because of continued local interest in the facility.

The State of New Jersey and Delaware have been informed. A press release is not planned at this time. The licensee and the,NRC are responding to news media inquiries.

NRC, Region I, (Philadelphia) received notification of this occurrence by telephone from the Resident Inspector at 12:00 noon, June 19, 1979.

Contact:

G. Klingler, IE 28019; F. Nolan, IE x28019; S. Bryan, IE x28019 Distribution:

Transmitted H St fID Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky ACRS (For Distribution)

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Transmitted: MNBB 4'.55 P. Bldg /d t.F '7.

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IE L. V. Gossick, EDO H. R. Denton, NRR Region,,,_7f.,_,"

H. L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, FTA R. S. Boyd, NRR (MAIL)

R. G. Ryan. OSP SS Bldg Er J. Cummings, OIA H. K. Shapar, ELD W. J. D rcks, NMSS R. Minogue, SD S. Levine, RES PRELIMINARY NOTIFICATION

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