ML19208B273

First Interim Rept for Ro:Partially Embedded Rebar Developed Crack During Bending,Which Is Not in Accordance w/G2 Specs. Steps Taken to Ensure Const Procedures Will Be in Compliance

ML19208B273
Person / Time
Site:	Yellow Creek
Issue date:	09/04/1979
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML19208B270	List: ML19208B269 ML19208B273
References
NUDOCS 7909190448
Download: ML19208B273 (1)

Text

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ENCLOSURE YELLOW CREEK NUCLEAR Pt.AST UNITS 1 AND 2 REBAR BENDING NOT IN ACCORDANCE WITH SPECIFICATION NCR YC-023 10 CFR 50.55(e)

FIRST INTERIM REPORT

_ Description of Deficie.;9v This nonconformance report identified a problem in which partially embedded rebar developed a crack dur~ing bending by plant constructio employees.

prevent recurrence on this nonconformance reportReview of the pr n

of Construction procedures for bending partially embedded rebar did not revealed that Division implement Revision 2, January 9, 1978.the requirements of General Construction Specification approval of both the appropriate Design Project and ConstructionSpecif employees before bending or straightening of pattially embedded rebar is performed.

Up to the present time, Lonstruction has not been This problem apparently exists at all TVA nuclear plantnoti sites.

construction

_ Corrective Action Steps are being taken to ensure that Specification G-2 at all TVA plants now under constructio n

this deficiency may have on plant structures will be exa i The effect in the final report.

m ned end addressed

.I s\\3 t.

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