ML20071H971

Submits Daily Highlights Re Insp of Periphery of B Steam Generator Hot Leg.Insp Results Indicate Approx 7-10 Previously Plugged Tubes in Peripheral Area Severly Damaged. Tv Insp Planned for a & B Generators

ML20071H971
Person / Time
Site:	05000000, Ginna
Issue date:	02/16/1982
From:	Lyons J Office of Nuclear Reactor Regulation
To:	Carter J, Harold Denton, Eisenhut D NRC
Shared Package
ML19302F297	List: ML19302F296 ML20023A406 ML20023A413 ML20023A464 ML20023A465 ML20023A509 ML20023A510 ML20023A511 ML20023A512 ML20023A513 ML20023A514 ML20023A515 ML20023A516 ML20023A519 ML20023A521 ML20023A523 ML20023A525 ML20023A528 ML20023A529 ML20023A532 ML20071H278 ML20071H964 ML20071H968 ML20071H971 ML20071N278 ML20071N284 ML20071N287 ML20076B334 ML20076B338 ML20076B498 ML20076B501 ML20076B505 ML20076B509 ML20076B989 ML20077J897
References
FOIA-82-309 NUDOCS 8203110339
Download: ML20071H971 (2)

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UNITED STATES NUCLEAR REGULATORY COMMISSION e

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WASHINGTON, D. C. 20555 e.

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February 16, 1982 c

MEMORANDUM FOR:

H. Denton J. Carter D. Eisenhut R. Purple T. Novak R. Tedesco G. Lainas S. Hanauer R. Vollmer R. Mattson H. Thompson J. Sniezek T. Ippolito J. La Fleur

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THRU:

Dennis M. Crutchfield, Chief Operating Reactors Branch #5, DL

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FROM:

James E. Lyons, Project Manager Operating Reactors Branch #5, DL

SUBJECT:

DAILY HIGHLIGHT R. E. GINNA.

Rochester Gas and Electric Corporation (RG&E) has completed a television (TV) inspection of the periphery of the "B" steam generator (S/G) hot leg.

Inspection results indicate approximately 7-10 previously plugged tubes in the peripheral area near the ruptured tube are severly damaged. At least i

two tubes appear to have been completely severed 1-2 inches above t.se. tube l

sheet.

The remaining damaged tubes in this area appear to have been heavily I.

impacted at the same elevation, with penetrations and siignificant dents i

visible. Two pieces of foreign metal have be~eli removed from the steam generator.

The larger, approximately 6:1/2" x 4" x 7/16", was found in an area approx-imately 8 to 10 feet from the ruptured tube. 8 to 10 previously plugged tubes in this area were' scarred and dented to a lesser degree than those in the area of the rupture.

RG&E plans to perfom further TV inspections of the "B" S/G (cold leg periphery and hot leg tube lane) and to perfom the same I

inspection of the "A" S/G. Westinghouse specialists arrived on-site today to provide techhical assistance.

RG&E will continue "tYevaluate the res~ lts of the inspections.

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W hy Jam s E. Ly roject Manager.

'ating Re s Branch #5 a

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Division of Licensing

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