ML20127J694

Provides Second Supplemental Response to NRC Re Deviations Noted in Insp Repts 50-438/83-10 & 50-439/83-10. Corrective Actions:Deficient Fire Damper/Sleeve Tack Welds Installed Per Ul Approved Instructions

ML20127J694
Person / Time
Site:	Bellefonte
Issue date:	03/28/1985
From:	Mccloud D TENNESSEE VALLEY AUTHORITY
To:	Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20127J650	List: IR 05000438/1983010 ML20127J694
References
NUDOCS 8505210544
Download: ML20127J694 (2)

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-'i.) , TENNESSEE VALLEY AUTHORITY *

. CHATTANOOGA. TENNESSEE 374ol l

• mN - 400 Chest se er II i na March 28, 1985 -

U.S. Nuclear

Regulatory Commission

.Reglon II Attn:1 Dr. J.. Nelson Grace, Regional Adininistrator 101 Marietta Street, NW," Suite 2900 oAtlanta, Georgia -30323

Dear Dr. -Grace:

iBELLEFGITE NUCLEAR PLANT-INITS 1 AND 2 - SECOND SIPPLEENTAL RESPWSE' TO

' DEVIATION 50 438/83-10-05, 50 439/83-10 45 - INROPER FIRE DLWER

. INSTALLATIM :

~. /In;msponse to R. C. Lewis' < letter' dated May 23, 1983, report ntabers 50 438/83-1_0, 50 4 39/83-10 concerning activities at the Bellefonte Nuclear Plant which appeared to deviate from commitments to the' Commission' TVA had, submitted a final response on July 7,1983 and a revised msponse on

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. August 26, '1983 and a first supplemental msponse on December 22, 1983 Below fia our second supplemental msponse to deviation 50438/83-1045 and 50-439/83-10-05.

' As stated 51n our original maponse to this deviation, WA had generated Lnonoonfomance report (NCR) 2391 to document the as-built configuration of

' installed stapers and was awaiting word from the damper manufacturer concerning the acceptability of the installed configurations. TVA had also committed .to mworking any dampers found to be unacceptable as part of the disposition of Nm 2391.

LSince that time, additional discrepancies with the fim dampers were identified and TVA issued'NCR BLN EB 8403 (BLRD-50438/84-33, 50 439/84-31) to document these new deficiencies as well as those already.

listed on NCR 2391. . NCR 2391 was then closed based on the. existence of Nm

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BLN. MB 8403 The' rework on: all dampers will now. be > accomplished per the l

disposition of NCR BLN EB- 8403 (instead of NCR 2391 as stated in the .!

origtnal mspons'e).

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Corrective action for the dampers has been specified in NCR BLN EB 8403, and the specified action is to mwork all the dampers so that they are 11nstalled .in strict accordance with the manufactuer's Underwriters b*  ? Laboratory (UL) approved. installati'on instructions. TVA is now in the process.of reworking the deficient damper / sleeve tack welds identified in l

s the deviation. - Because of the large nimber of dampers mquiring rework,

.TVA will not complete the required rework by June 1985 as previously committed. - However, we row expect to complete this-work by March 16, 1986.

4 8505210544 850411

, PDR ADOCK 05000438 x An Equal Opportunity Employer w j

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- U.S. Nuclear Regulatory Commission March 28, 1985 If you'have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.

To the best of my knowledge, I declare the statements oontained herein are complete and true.

Very truly yours, TENNESSEE VALLEY AUTHORITY

' D. E. McCloud Nuclear EngLneer c0: Mr. James Taylor, Dimotor Office of Inspection and Enforoement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Records Center Institute of Nuclear Power Operations

.1100 circle 75 Parkway, S2ite 1500 Atlanta, Georgia 30339

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