ML19210D625

LER 79-049/01T-0:on 791101,four Seismic Supports Found W/Safety Factors of Less than Two.Caused by Engineering Design Deficiency.Redesign Performed.Corrective Action Implemented within Seven Days

ML19210D625
Person / Time
Site:	Peach Bottom
Issue date:	11/16/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19210D618	List: ML19210D617 ML19210D625
References
LER-79-049-01T, LER-79-49-1T, NUDOCS 7911270405
Download: ML19210D625 (1)

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EVENT DESC IPTION A 'O pro 0AB E C S NCES I :r l As tart of the inspecticn progran being performed in respcnse to IE Bul- 1

,3 l letin 79-02, an engineering review of vendor design revealed that four ]

4 i seismic supports associated with the 1" control rod drive piping had l

'TTl I anchor bolts with design safety factors less than 2. Four of the six l c I anchcr bolts on each support were found to have safety factors less than l i 1 2. Failure of the supported piping would not have prevented the control

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