ML20004B217

LER 81-010/03L-0:on 810420,leaking Relief Valve Was Found on Letdown Sys.Caused by Cracked Bellows Due to Increasing Differential Pressure as Result of Crud Buildup.Valve Repaired & Reinstalled

ML20004B217
Person / Time
Site:	Ginna
Issue date:	05/19/1981
From:	Spector S ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20004B213	List: ML20004B212 ML20004B217
References
LER-81-010-03L, LER-81-10-3L, NUDOCS 8105270405
Download: ML20004B217 (1)

Text

V LER 81-010/3L-0 CAR i303 LICENSEE EVENT REPORT b,

1) Control Block: l l l l l ! l 2) Licensee Code: lNlY!R!E!Gl1!

3) License Number: l0lJi-lol0l0!O!O!-!0:0l

4) License Type: l4:1l1l1l1l 5) Cat: l l ! 6) Report Source: !Li

7) Docket Number: 10:5l0:0:0l2l4l4!

8) Event Dnte: 10:4:2:0l8l1: 9) Report Date: 10: 5!1 9!8: 1l

10) Event 'escription and Probable Consequences:

lDuring routine operation for achieving shutdown conditions  !

ifor a refueling outage, a leaking relief valve was found on l lthe letdown system. The relief valve had been actuated due l Tto plugging of the CVCS letdown domineralizer. The bellows l lon relief valve RV 209 had failed causing RCS fluid to puddle!

on the auxiliary building floor. Tech Spec 6.9.2.b.4 l

11) System Code: !P!Cl 12) Cause Code: lE! 13) Cause Subcode: lB:

14) Comp. Code: lVlA!LlV!E!Xl 15) SubcodeT !H: 16) Valve Code: lEl

17) LER/R0 Report Number: 18 1l-l0:110!/l0!3TET-!0:

18) Action Taken: lD: 19) Future Action: lZi 20) Effect on Plant:lZl

21) Shutdown Method: 12l 22) Hours: l0l0lDTU:

23) Attachment Submitted: lNl 24) NPRD-4 Form Submitted: lN!

25) Prime Component Supplier: lN! 26) Manufacturer: lC 7lTTF1

27) Cause Deceription and Corrective Actions:

lThe Crosby relief valve, 2H3 JB-2S E 200 psi, normally __ l l discharges to the volume control tank. During shutdown, thel l relief valve was periodically actuated due to crud buildup l l causing an increase in differential pressure across the  !

idemineralizers. The bellows cracked on thel relief valve l

! allowing relieved fluid to discharge in the area. The valve!

Twas repaired and reinstalled into the system. l

28) Facility Status: lDl 29) % .cwer: l0l0l0l

30) Other Status: lN/Al

31) Method of Discovery: lA!

32) Discovery

Description:

Contaminated spill

33) Activity Released: !Zl 34) Content of Release: lZl

35) Amount of Activity:~TR/A!

36) Location of Release: lN/Al

37) Personnel Exposures Number: l0:0:0l 38) Exposures Type: lZl 39)

Description:

lN/Al

40) Personnel Injuries Number: l0l0l0l 41)

Description:

IN/A!

42) Loss of or Damage to Facility: l0l 43)

Description:

lN/A

44) Publicity Issued: lNl 45)

Description:

lN/A NRC USE ONLY ! l l l l l l l l l l l !

Name of PrepaFer: S.M. Spector Phone: 315-524-4446 x214 8205070tg)gp