ML19263D836

Requests Confirmation That TRAP-2 Code,Used in Plant Fsar,Is Appropriate for Analysis of Steamline Break & Increased Flow Transients,Feedwater Line Break & Loss of Normal Feedwater, & Closure of One Main Steam Isolation Valve

ML19263D836
Person / Time
Site:	Midland
Issue date:	03/26/1979
From:	Novak T Office of Nuclear Reactor Regulation
To:	Rosztoczy Z Office of Nuclear Reactor Regulation
Shared Package
ML111090060	List: ML19208A315 ML19208A325 ML19250B014 ML19250B445 ML19250B480 ML19250B482 ML19254C975 ML19254G119 ML19254G128 ML19255K396 ML19255K397 ML19257E274 ML19257F047 ML19257F050 ML19260B823 ML19260E912 ML19260E913 ML19260E914 ML19261C469 ML19262E467 ML19262F230 ML19263D836 ML19263F605 ML19263G068 ML19268C086 ML19268C087 ML19269F130 ML19271A085 ML19271A172 ML19273B051 ML19273D308 ML19274A409 ML19274E085 ML19275B428 ML19275B444 ML19275C327 ML19275C328 ML19275G904 ML19275G918 ML19275H308 ML19275H317 ML19275H339 ML19275H341 ML19275H375 ML19275H401 ML19275H405 ML19275H493 ML19275H655 ML19275H660 ML19276D594 ... further results
References
FOIA-80-515, FOIA-80-555 NUDOCS 7904130314
Download: ML19263D836 (7)

Text

1 Docket flo. 50-329/330 MAR 2 6 7379 i!E:!ORAtlDUM FOR:

Z. R. Rosztoczy, Chief, Analysis Branch, DSS FPRf:

1. M. flovak, Chief, Reactor Systems Branch, DSS

SUBJECT:

REVIEW OF TRAP-2 (BAW-10128)

We note in our review of the Midland FSAR that the TRAP-2 code is used to analyze:

1.

Steam line break and increase in swam flow transients 2.

Feedwater line break and loss of nomal feedwater 3.

Closure of one main steam isolation valvo BAW-10128 states that TRAP-2 is used for analysis of main steam line breaks and main feedwater line breaks. We request that you confinn that TRAP-2 is appropriate for the events listed above.

Crl;;inels!rned W 1 S

G.R. M M C Thomas M. flovak, Chief Reactor Systems Branch Division of Syste as Safety 0, tf f - D cc:

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