ML20133N746

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Second Interim Deficiency Rept Re Incorrect Response Spectra in Reactor Bldg Spray Piping Analysis.Initially Reported on 841108.Correct Response Spectra Generated & Piping Supports Requalified.Next Rept Expected by 860214
ML20133N746
Person / Time
Site: Bellefonte  Tennessee Valley Authority icon.png
Issue date: 07/09/1985
From: Hufham J
TENNESSEE VALLEY AUTHORITY
To: Grace J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8508130601
Download: ML20133N746 (1)


Text

TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 1630 Chestnut Street Tower II July 9, 1985 BLRD-50-438/84-57 BLRD-50-439/84-53 U.S. Nuclear Regulatory Commission Region II Attn:' Dr.'J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323

Dear Dr. Grace:

BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - INCORRECT RESPONSE SPECTRA M ANALYSIS OF REACTOR BUILDING SPRAY PIPING - BLRD-50-438/84-57 AND' c--

BLRD-50-439/84 SECOND INTERIM REPORT S

The subject deficiency was initially reported to NRC-0IE Inspector S. Weise on November 8,1984 in accordance with 10 CFR 50.55(e) as y

NCR BLN CEB 8417. This was followed by our first interim report dat e December 7, 1984. Below is our second interim report. We expect to**

submit our next report on or about February 14, 1986, c.rs c2 Interim Proaress TVA has generated the correct seismic response spectra for el 890.2' of the containment structure dome and has completed the reanalysis of the NS system piping. The affected piping supports are being requalified using the new analysis data. The corrected seismic response spectra will be included in a revision to the BLN seismic analysis report.

If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.

Very truly yours, TENNESSEE VALLEY AUTHORITY

.d &*m

.J. W. Hufham, Manager Licensing and Risk Protection ec:

Mr. James Taylor, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Conmission Washington, D.C.

20555 Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500

-Atlante., Georgia 30339 h

38 S

PDR 1Q */ g D An Equal 0pportunity Employer

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