ML19330B865

RO 3-80-16/1P:on 800717,pipe Support Snubber 3-10-GB-S44 Exceeded Operability Criteria.Caused by Differences Between as-built Condition & Seismic Analysis Input Info.Hydraulic Snubber to Be Replaced W/Mechanical Snubber

ML19330B865
Person / Time
Site:	Peach Bottom
Issue date:	07/17/1980
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
References
NUDOCS 8008070099
Download: ML19330B865 (2)

Text

. _ _.

~

~

C PRIIADE[PEIA ELECTRIC COMPANY Prach Bottom Atomie Power Station Delta, Pennsylvania 17314 July 17,1960 ler. Doyeo R. G:.ier Office of Inspection and Enforcement Regica 1 tRaited States Nuclear Ragulatory Commission (31 Phat Avenne Eing of Prussia. PA 19406 SFETECT:

EEPWTABLE OCr'arnew's - Pat 3EPT EDTIFIcA'FIC_E.

Conti wing R. 5. Fleischn's eenversation with Mr. Cousill. Begica 1 thaitrit States Euclear Regulatory Commission on July 17, 1960.

Reference:

Docket No. 50-278 Peach Botten Itait.3 Seekaical Specificatica Refenaces:

311.D.2 as 6 9 2.s (9)

Report No. 3.-80 'l6/IP Osserrence Date:

July 17, 1960 Identificatica of C;c e:

It was 14eatified that re-enalysis of as-built piping deteruf med that pipe support (anubbec) 3-1t>-G8-844 exceeded the operability criteria.

pasarent Cname of Oceerrence:

Imedequate design due to diffennees between the as-built conditica sad the seimmia analysis input information.

Aasirsio of Occurreneet Although the pipe sgport stresses exceed tims. operabilitr eritaria.

-- the stressor in the essociated piping, assianing sgport failure, are still vitatin operability criteria limits.

The saftty significance is, therefore, mistani.

' thrrenStve Artign:

urerentie anubber 3-10-os-shh will' be rep 1===a with a amenanical saubber-ame appropriate strew"f as or associated ogport steel-will be completed.

witaan 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

IHis DGCUMENT CONTAINS

.,;. POOR QUAUTY PAGES 80080700 N I

~

r 1

1 I

......__l i

-e-1 Previents Fdlures:

2-7$-33/IP 2-79-35/IP 3-77-19/1P 3-79-73/IP 3-79-25/IP 3-TP-ad/IP 2-79-43/IP 2-79-M/IP 3-7j>-30/IP Yery truly yours, M

m.

Sta41em Superintendent wiwaar:1ja O

I l

)

w

=9 v'

w vww w'

v wY ww =

v

[.WYh

'p w=

y y-w qrw w

mf fq y,-

e

'