ML19318A648
| ML19318A648 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/03/1979 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| References | |
| IEB-79-02, IEB-79-2, NUDOCS 8006230566 | |
| Download: ML19318A648 (2) | |
Text
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PH T R ADE Y,PH T A HT, ECTR FC COLIP ANY Peach Bo.ttom A.t omi c Power Station Delta. Pennsylvania 17314 October 3, 1979 Mr. Boyce H.. Grier Office -of Inspection and En fortement-Region i United States Nuc. tear Regulatory Commis si.ow-031 Parit Avenue King of Prussia.. PA' 19406 SU BJECT':
REPORTABI,E OCCURRENCE PROMPT NOTIFICATION Con fir = La g W.. T U1.1rtch's co nv e r s a t-lo n with Mr. Creanman, Regi.on 1, Un in t ed. S t a t.as Nuclear R*2ulatory Commisnion on October 3, 1979.
R eferen ce r Docket N o.. 5 4 - 2 7.'t Peach Bottors UnlA 3 TechniewT Specificati.on Re fe rencen :
6. 9. 2. a t" '4 ).
3.3.F.3, Report No. 3 -7 9-34 /1' P Octurrence Date:
0ctober 2., 1979' Iden t i fi ca t i.on of Occurrencyr The continuing so-i sm i c anchor inapwetion program h=1ng parfo,ned-in respanwa.to T:.E.
Bulletin 79-02 has i ci e n t i f i e d a iai1ure in
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one support assoclated with t hve Un i;t. 3 "B"
Ioop core spray' diacharge I.L n e..
App a ren t Cause-of Occurrence :
Taproper instal.la t.i.on. of anchor bo.1 t.
Analysis of occurrence:
Du rin g-the inspection of h a n g e r 14'- G B % 4 two hotrs Fm i 1 ett due
, t o con-ta ct between the boIt s h e l' t v an d the base plate c a u<i:n x nap the safety factor to drny to 1 95 -
The mafety =ignifrean<e I: s.
+ces minim =1 hecsuse U'n t t 3. reactor En in the-c o.I d ahutdown con di t ion...,......
,U:6,'. during refueling.and.ther.efore the core spray system is n o.t:
required.to.he operable,...
.. c.
Corrective Actlan :
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Anchor. 3-t'4-0 4-S6 1:s a erfslal hanger with ena 4 bott base p l a t e..
R'ep l acement.- o f the 2' failed boIts w.i t h 7"
liitti Kwik ho l t s. i s.
irn.
proigvw;e s ;.
Plate wa*hers w l. I' l! b e-i n st a l-l e d over the rena i.n i n g 2:
bolts.to comply,with the bo r t. ho l' e gap c ri.t e r i on.
The a tt a inmen t o f an 'acewptable safe ty factxrr. f s anticipated within 21' h a u r *...
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