ML19270H431: Difference between revisions

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| contact person =  
| contact person =  
| document report number = NUDOCS 7908130461
| document report number = NUDOCS 7908130461
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO,LER), TEXT-SAFETY REPORT
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT
| page count = 2
| page count = 2
}}
}}


=Text=
=Text=
{{#Wiki_filter:-        -
{{#Wiki_filter:) <r
                                                                                      ) <r ]($f (2.'W n Y2 N
]($f (2.'W n Y2 N PHILADELPHTA EJ.ECfRIC COMPANY 2-Peach Bottone Atouic PoEscr Station-Delta. Pennsylvania.
          -                          2-PHILADELPHTA EJ.ECfRIC COMPANY                                             .
17314 July 25, 1979 Mr. Boyce H. Griwr Office of Inspectiers and Enforcewma Regiort 1 United. States Nucleme Regulatory Commiessionc 631 Park Avenue King of Prussia, PA 19406 SUEJECT: REPORTABEE OCCURRENCE - P310FT NETTIFICATIDN; Confirming W. T. Ut 11 rich's c'onversation with. Mr. Csqpisteet,. Region 1 United States Nuclear Regulatnry Commissiorm on. July 25, 1979.
Peach Bottone Atouic PoEscr Station-                       *  *-
Reference-Docket No. 50.'I76 Peach Bottous' Unit 3 Technical' Specification.  
Delta. Pennsylvania.
17314 July 25, 1979 Mr. Boyce H. Griwr Office of Inspectiers and Enforcewma Regiort 1 United. States Nucleme Regulatory Commiessionc                                                                     .
631 Park Avenue King of Prussia, PA                       19406                             -
SUEJECT: REPORTABEE OCCURRENCE - P310FT NETTIFICATIDN;                                                       ,
Confirming W. T. Ut 11 rich's c'onversation with. Mr. Csqpisteet,. Region 1 United States Nuclear Regulatnry Commissiorm on. July 25, 1979.
Reference- Docket No. 50 .'I76 Peach Bottous' Unit 3 Technical' Specification.  


==Reference:==
==Reference:==
6.9.2.a(9)
6.9.2.a(9)
Report No. 3_79-23/IP'                                                                     -                              --  -
Report No. 3_79-23/IP' Occurzence Date. July 2% 1979 Identificaticem of Occurrencec Failure of enchor support arr emergency service watem piping. in 35 MHit rope.
Occurzence Date. July 2% 1979 Identificaticem of Occurrencec Failure of enchor support arr emergency service watem piping. in 35 MHit rope.
The above failure was idenelified a+ a resutt of a piping. support inspeer.Lorm progran being conducted in accordance with IE Bulletin: 79-07.
The above failure was idenelified a+ a resutt of a piping. support inspeer.Lorm progran being conducted in accordance with IE Bulletin: 79-07. Thi$
Thi$
laspectiort identified one bolt on a four anchor support pisste *Aich would not torque property. Additf orrally,, one bolt wasJ found with a ~ cracked head.'
laspectiort identified one bolt on a four anchor support pisste *Aich would not torque property.
Additf orrally,, one bolt wasJ found with a ~ cracked head.'
Failure of these twon boltw cet one support piare has: been, evaluated as a support failure.,
Failure of these twon boltw cet one support piare has: been, evaluated as a support failure.,
4 parent. Cause::                                   M             Wmng-             -
4 parent. Cause::
Impropen insextlatiors.                         E             .    ;h_           _;.,
M Wmng-Impropen insextlatiors.
E
;h_
Analysis of Occurrence::
Analysis of Occurrence::
ne supporte pisec ar4 horst wh6sh, fakled werer part: of an cuergency sesvice water line piping support                           The energency seruvice water line (3" disuserer) is associated wi.thi rooms cooler.w in the Unit J 'B' RH2 room. Thee piping involved is orr the outlet side of the room coo-ter. Possible fai leste of~
ne supporte pisec ar4 horst wh6sh, fakled werer part: of an cuergency sesvice water line piping support The energency seruvice water line (3" disuserer) is associated wi.thi rooms cooler.w in the Unit J
'B' RH2 room.
Thee piping involved is orr the outlet side of the room coo-ter.
Possible fai leste of~
this pipe during a seismic. event could Iwad to floodi,ng of one RHR room.
this pipe during a seismic. event could Iwad to floodi,ng of one RHR room.
Probability of such an occurrence appears to be very Acass.
Probability of such an occurrence appears to be very Acass.
2379 067 7908130 %
2379 067 7908130 %


                                      -        '                                  r             -
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                                                                                                              *~~-     ~'
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_ _ .z.           _      _,
_ _.z.
~~                                                 -
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Corrective Action -
Corrective Action -
Thr two failmt anchors- and t>olts have been replaced                                                       AII four bolts Ier this assemb4             9 c werer satisfactedsy torque tested.. Corrective action is couplete Previous FaElures::
Thr two failmt anchors-and t>olts have been replaced AII four bolts Ier this assemb4 c werer satisfactedsy torque tested.. Corrective action 9
2-79-33/IP 2-79-3F/IP 3-79-19/1P                                                                                                                                 g_
is couplete Previous FaElures::
J-79-25/1F                                                                                                                       ,
2-79-33/IP 2-79-3F/IP 3-79-19/1P g_
Very truly your s
J-79-25/1F Very truly your s y;/ N2-_
      .                                                  .                y;/ N2-_                                               .
W T. Ullrisch+ Superknemndent:
W T. Ullrisch+ Superknemndent:
Peach 50tttnr. Aconte Fower Statiore wruoi-                                                                                                                             ..
Peach 50tttnr. Aconte Fower Statiore wruoi-46 en og.
46     en                                 og .
H 79 068 D " " RD
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Latest revision as of 05:46, 3 January 2025

RO 3-79-23/1P on 790724:anchor Support on Emergency Svc Water Piping in RHR Room Failed.Apparently Caused by Improper Installation.Anchors & Bolts Replaced & Satisfactorily Tested
ML19270H431
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 07/25/1979
From: Ullrich W
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
References
NUDOCS 7908130461
Download: ML19270H431 (2)
v • d • e


Text

) <r

]($f (2.'W n Y2 N PHILADELPHTA EJ.ECfRIC COMPANY 2-Peach Bottone Atouic PoEscr Station-Delta. Pennsylvania.

17314 July 25, 1979 Mr. Boyce H. Griwr Office of Inspectiers and Enforcewma Regiort 1 United. States Nucleme Regulatory Commiessionc 631 Park Avenue King of Prussia, PA 19406 SUEJECT: REPORTABEE OCCURRENCE - P310FT NETTIFICATIDN; Confirming W. T. Ut 11 rich's c'onversation with. Mr. Csqpisteet,. Region 1 United States Nuclear Regulatnry Commissiorm on. July 25, 1979.

Reference-Docket No. 50.'I76 Peach Bottous' Unit 3 Technical' Specification.

Reference:

6.9.2.a(9)

Report No. 3_79-23/IP' Occurzence Date. July 2% 1979 Identificaticem of Occurrencec Failure of enchor support arr emergency service watem piping. in 35 MHit rope.

The above failure was idenelified a+ a resutt of a piping. support inspeer.Lorm progran being conducted in accordance with IE Bulletin: 79-07.

Thi$

laspectiort identified one bolt on a four anchor support pisste *Aich would not torque property.

Additf orrally,, one bolt wasJ found with a ~ cracked head.'

Failure of these twon boltw cet one support piare has: been, evaluated as a support failure.,

4 parent. Cause::

M Wmng-Impropen insextlatiors.

E

h_

Analysis of Occurrence::

ne supporte pisec ar4 horst wh6sh, fakled werer part: of an cuergency sesvice water line piping support The energency seruvice water line (3" disuserer) is associated wi.thi rooms cooler.w in the Unit J

'B' RH2 room.

Thee piping involved is orr the outlet side of the room coo-ter.

Possible fai leste of~

this pipe during a seismic. event could Iwad to floodi,ng of one RHR room.

Probability of such an occurrence appears to be very Acass.

2379 067 7908130 %

r r.

  • ~~-

~'

_ _.z.

~~

Corrective Action -

Thr two failmt anchors-and t>olts have been replaced AII four bolts Ier this assemb4 c werer satisfactedsy torque tested.. Corrective action 9

is couplete Previous FaElures::

2-79-33/IP 2-79-3F/IP 3-79-19/1P g_

J-79-25/1F Very truly your s y;/ N2-_

W T. Ullrisch+ Superknemndent:

Peach 50tttnr. Aconte Fower Statiore wruoi-46 en og.

H 79 068 D " " RD

  • @ 0 FD P r, f

_ombb dMlbt"m g

e.

em e

p-

-e g,,

er a

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