ML19209B429
| ML19209B429 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 09/05/1979 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| References | |
| NUDOCS 7910090703 | |
| Download: ML19209B429 (2) | |
Text
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Eing of Prussia, PA 19406 SERIEE"T:
REPUtT.1t3LE OCU1RRENCE - PRCBFT NOTIflCM If*e ra-Firming W. T. Ut1 rich's conversation with Mr. Gre-nmn, Resitm 1. Wited States NacIser Reguistory Commission esa Septeobe r 5.1979.
Reference:
Decket W.34-278 Peech Acttc*e meit 3 Tochesica.1 Specification
Reference:
- 6. 9. 2. s (9J 7 ni No. 3-79-26/1r Ocearrence Dete:
Septesber 4, IF19 Identification of Ormrrence:
PnAlmre of piping support macher en the Ukit 3 W r==r discharaw piping.
Om Septembarr 4 197e. the failed. sachor was discevere! and repart-d to t!=
persennel iwvoIved with the hartger inspection pragnm.
It m tbe handIed in accordance with the procedures developed for re ptm-e t o N i t-t.7 N -112.
i Asocher 3-23 CDN-525, w8 Ich guides a portion of the ri iF M Fe*w-e-t ha FCI' t
puey alischarge xnd the **0-20 vaAve (which is upstrene e
fe.,tetar !!ne A1, asas identified.ns a railure.
71ee anchor guide
- thi* sectirm of piping wtddt mer be isoisted try the closure of MD-20 and/or %I9 downstraam of the haugar seen and MD-17 and ten-57 out the upstream side.
. Apparent Causse of Occurrence:
A Rechtet anatyai? Endicated that the anchor was over_-st ressed, however, csweelusions as to the oca. at causa of failure have not yet bem drawn.
Analysis of Occzarrence:
Failure of this ar*chor may not have resulted in failure cf the supportel piping systeem during a setsute event.
Safety significance is slaisual because of the syntisbility of redundant IECS systems.
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l, %TJW Cctrrectire Action:
t Fellowing tbn motification of the failed anchor. Mechtet was contacted to 1910090 703 J
f' a
determine the optimum repair method.
Presently, repain are beiwa W e to 11 T anchor.
Redundant EGS equigunent is being tested to prove opern-
- bilith, Prowlaus Failures:
2-79-33/IP 2-79-35/IP O@
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J dI h Uj jf 3-79-23/IP 3-79-25/IP Very emuty ye, F w4~(
W. T. Ullrich, Superint m<fet
_Beeck Detton Atomic Tbwer Stati,on_
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