ML19322A380
| ML19322A380 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/05/1979 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| References | |
| NUDOCS 7910150478 | |
| Download: ML19322A380 (2) | |
Text
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PttII.ADET.PitI A ELECTRTC'.'.OMPANY Psech Bottom Atourie Power Statiew Delta, Pennsylvania 17314 October 5, 1979' Mr. Beyce M.
Grier Office of Inspection and Enforcement Region i United Statee Foclear Regwiatory Commission 631. Purk Avenue Eing of Frussia,, PA.
194%
SUBJECT:
NEFORTABLE OCCURRENCE - Ph TMPT NOTI.IICATION:
Confi rwirrg W.
T. 5Htrich's conYerSMC19n With Mr.-
G r *
- P't a n,
Megion 1 United States Nuclear Reguistory Coanission on October 3,. 1977.
Roferen ce-Becket No. 50-778-Peach Bett.on Uni e 3 Technicv1 Specification Ref erwnees:.
- 6. 9. 2. = ( 9 ),, 3 5 F.3 Report N1>.
J-79-32/1F Occurrence Date:-
Octuber 5,,
1979 Iden tific ation of Occurrence:.
The continuing seiswie anciver inspection program being perf >rmmi in response ta t.E. h11et in 79-07 has identi fi ad Nilure in a-one suppo.rt associated with the hit 3 emergency seevica. water roturn line Erom the room coolers enst t h e oil cocFars fer the AEC core sprzy pumps.
Apparent Cause of Occtrrrence :
Icproper installation of enchet helt.
Analys is of Occurrence :
During the in stree t ion of ancher 3-31 HR-4 04 two haits fa.i1-d to nehieve torque r=amirements cansing the infety Ese m to d r at.
below 2.
The s a fe ty significance is minimal he c sors e Unit 3 react or is in the cold shutdown etmd t tion during refueling e n d-therefore the eere spray system is not re9wiv=4 tw he overshle.
Corrective Actlen:
Seismic swpport 3. MR-S19M is. =w anchm-with on e 4 tm l e b:rw.
plate.
Rep isc e=m t vf the 2 f ailed hot ts with C nitti wwik halts will be initd eted.
Plate washer = wilt be in.+tatlad w ay tha h e l.t.s t re campty with the b o l t-hoile zmp erlesrinn if nwces==rv..
Tha attainment o f an accep tab te-safety factor is antici:>ated witlen howys.
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1 TWS DOCUMENT CONTAINS P00R QUAUTY PAGES 7910150 4-9 7 I
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4 Previous Tailures:
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