ML13308B482
| ML13308B482 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 11/30/1976 |
| From: | Ottoson H SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| RO-76-10, NUDOCS 8103060499 | |
| Download: ML13308B482 (1) | |
Text
ENSEE EVENT REPORT CONTROL BLOCK:
(PLEASE PRINT ALL REQUIRED INFORMATION) 6 ICENSEE NLSE EVENT P4AMi LICENSE NUMLHI rPE rYPE f
ILI ALo oo0oo oo0-joj1o0
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8 9 14 15 25 26 30 31
.32 CA ILGOY TYLI sIlCE 1
DOCKET NIUMI 1
LVENT DAI E REPORT DATE 0
CONT P0 L
Lii Lo 1-10 a 00 L1iL1L917 I I1131 01_]1 7
8 57 58 59 60 01 68 69 74 75 80 EVENT UESCRIPTION Z]id L Durin visual inspectioris of "C" steam generator, two antivi ibration bars were 7
A09 80 removed for dea2ariled examin ations.
The exaninations revealed several locations 7
89 80 E[4] I on each bar where the steam nenerator tubes aveLolainto the bars.
in some 7 89 80 E rpm wear hsc reduced the cross section of the bars to one-sixteenth of an inch.
7 8 9 80 o Other bars examined in place exhibit similar war to -sme degrpe.
Licensee Event s
7 8 9 Report No. 76-10 PHIME 80 SYSTEM CAUSE COMPONENT COMPONENT COUE CODE COMPONEN CODE SUPPLIER MANUFACTURER VIOLATION oE_]
HijT E IXI C H LW I1 12 [0 I INI 7
0 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION L esti nohou Steanim Generator. Model 27. Wearing of antivibration bar at contart s
7 09 80 m
I area with tubes.
Wear caused by mechanical fretting between the tubes and bars.
/
89 80 mBoI I.-
7 0 9 80 rI'I~ vMETHOD OF mIu
% POEI T OHE I-ISO SiA[US DISCOVEHY DISCOVERY DESCRIPTION FL]
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LoLIJ0 LB.]II Visual Inspection 7
3 9
10 12 13 44 45 46 80 I OPM OF AC TIVIT Y CNI IN RELEASED IIY PELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE E LJ LJ l ms I
I
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7 8
9 10 11 44 45 80 PERSONNEL EXPOSUI-S JNMEr I YPI DESCRIPTION i0 1 0 l 0 Z I NA 7
09 11 12 T3 80 PERSONNEL INJURIES N JMHO R DE.-SCRIIO N
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La o
1 L NA 7 /
9 11 12 00 OFFSITE CLNSEQUENCES E
L 7
9 80 LOSS O0 DAMAGE fI FACIL.Y 1 zJ L _HA 7
09 10 8C PUBLICI Y 1 7-I lA I
7 8 9 80 ADDITIONAL FACTORS NA 7
8 9 80, 1
L NN A
Gij 9 80 NAME 751 PH.
FONE: 7F4-4T2-7700',6 0
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