ML20126K350
| ML20126K350 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 05/23/1985 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8506100883 | |
| Download: ML20126K350 (2) | |
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TENNESSEE VALLEY AUTHORITY 16fd'hM5fn&^'S'tE eeESM6eE1T
.s5 MM 30 F ?. Mag 73,1985 BLRD-5043845-01 3
BLRD-5043945-01 U.S. Nuclear Regulatory Camission RegLon II Attn:
Dr. J. Nelsen Grace, RegLonal Adninistrator 101 Marietta Street, NW, mite 2900 Atlanta, Georgia 30323
Dear Dr. Grace:
BELLEFWTE NUCLEAR PLANI INITS 1 AND 2 - ING)NSERVATIVE FLANE QUALIFIGTICN AIRLEE - BLRD-5043845-01, BLRD-5043945 SECOND INTERIM EPORT The subject deficiency was initially reported to NRC-0IE Inspector S. Weise on December 7,1984 in accordance with 10 TR 50.55(e) as NG BLN GB 8420.
This was followed by our first interim report dated January 7, 1985.
Encimed is or second interim report. We expect to subnit our next report on or about April 18, 1986.
If you have any questims, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours,
TENNESSEE VALLEY AUTHORITY l
W J. W. Huf ham, Manager Licensing and Regulations Encimme cc:
.Mr. Jees Taylor, Director (Encimre) 0ffice of Impectien and Enforoement U.S. Nuclear Regulatory Cmaissien Washington, D.C. 20555 Records Center (Encimre)
Imtitute of Nuclear P ower Operatims 1100 Circle 75 Parkway, &ite 1500 Atlanta, Georgta 30339 g6%EiM*gha OfficiaLCog,
.rs agb An Equal Opportunity Employer
s ENQ WURE BELLEFmTE NUCLEAR PLANT UNITS 1 AND 2 UNCDNSER7 ATIVE FLANE QJALIFIGTIm ANALEIS BLRD-50438/85-01, BLRD-50439/85-01 BLN GB 8420 10 T R 50. 55(e )
SECOND INTERIM REPORT Dese rip tion of Defic iemy The Bellefente Nuclear Plant (BLN) Risprous Analysis Handbook BLN-RAH-302, attachment 302.2, indicated that a nonnal operating tenperature, as oppos ed to an upset tenperature, may be used to qualify a flang according to ASPE Code S ecticri III, subs ection NC-3658 ( S79). This interpretation was effective November 20, 1982.
However, a recent study has indicated that this intergretation was in error and that upset (service level B) temperatures must be used in flang qualification per NC-3658.3 (1983 edition), equation 12.
Policy statement 15 to section BLN-RAH-302, issed November 5, 198', has 4
corrected this secticri. BLN pLping arnlysis groblens issued between the above dates, which used this optional attachment, may have overloaded flangs.
Interim Prcgress Eighteen problens from BLN mits 1 and 2 were' identified to be affected by this N G.
Oniy one problen needs to be reanalyzed and the remainder wil1 recpire documentati<n changs. IVA will grovide further infonnatien in our ne xt re port.
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