ML19323E681

Forwards Addl Response to IE Bulletin 80-03, Loss of Charcoal from Std Type II,Two-Inch,Tray Adsorber Cells. Info Re Stride Portion of Design Encl

ML19323E681
Person / Time
Site:	Hartsville, Phipps Bend
Issue date:	04/25/1980
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-80-03, IEB-80-3, NUDOCS 8005270125
Download: ML19323E681 (2)

Text

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TENNESSEE VALLEY AUTHORITY fM

1. CH ATTANOOGA. TENNESSEE 37401

+ 400 Chestnut Street Tower II 56 ^/

April 25, 1980 g I _

Mr. James P. O'Reilly, Director >

Office of Inspection and Enforcement 5 U.S. Nuclear Regulatory Commission **

Region II - Suite 3100 c.n 101 Marietta Street -

Atlanta, Georgia 30303

Dear Mr. O'Reilly:

0FFICE OF INSPECTION AND ENFORCEMENT BULLETIN 80 RII:JPO ,

50-518, -519, -520, -521, -553, -554 - HARTSVILLE AND PHIPPS 1 BEND NUCLEAR PLANTS In response to ole Bulletin 80-03, dated February 6, 1980, TVA trans-mitted a report to you on March 21, 1980. Enclosed is a supplemental response to the subject bulletin for the Hartsville and Phipps Bend l Nuclear Plants, which provides information on the STRIDE portion of the '

design which was inadvertently omitted in our March 21, 1980, response.

This omission has been discussed with NRC-0IE, Region II Inspectors R. W. Wright and W. B. Swann. If you have any questions regarding this subject, please call Jim Domer at FTS 854-2014.

Very truly yours, TENNESSEE VALLEY AUTHORITY g

L. M. Mills, Manag Nuclear Regulation and Safety l Enclosure cc: Mr. Victor Stello, Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission y Washington, DC 20555

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a ENCLOSURE HARTSVILLE AND PHIPPS BEND NUCLEAR PLANTS SUPPLEMENTAL RESPONSE TO NRC-01E BULLETIN 80-03*

I The previous response to IE Bulletin 80-03, which was transmitted from L. M. Mills to J. P. O'Reilly on March 21, 1980, did not include information on the STRIDE portions of Hartsville and Phipps Bend Nuclear Plants. When this omission was discovered an inspection was promptly initiated.

For the STRIDE portion of the plants, the only adsorbers that have been received at Hartsville and Phipps Bend are in the Standby Gas Treatment System. The Standby Cas Treatment Systems at Hartsville'and Phipps Bend Nuclear Plants are equipped with deep-bed, gasketless adsorbers manufactured by CTI Nuclear. Seven of the eight adsorber units at Hartsville and all four adsorber units at Phipps Bend were inspected. On these filtet , the perforated screens are spot welded to the casing on approximately 3/4-inch centers. it Hartsville several areas were noted in which the spot welds had broken loose, allowing the screen to separate from the frame. Spot welds in the Phipps Bend adsorbers appeared to be holding but some screen to frame separation was noted between the welds. Charcoal has not yet been loaded into these adsorbers, therefore, leakage could not be detected.

This condition is considered to be a deficiency and a nonconformance has been initiated to ensure that proper corrective action will be taken.

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