ML13308B496
| ML13308B496 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/09/1976 |
| From: | Ottoson H SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| NUDOCS 8103060562 | |
| Download: ML13308B496 (1) | |
Text
LICENSEE EVENT REPORT CONTROL BLOCK: L (PLEASE PRINT ALL REQUIRED INFORMATION]
1 6
LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE I Ci AiS 0 III 10 01-1 010 1010101-10 10 14 1 1 1111
[_.31 7
89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE 01 CON'T LJ1
.J LI L] I 0l 51 01-1 012 10 16 l 015 12 10 7 16ij 0 1 61 01 9 17 6 1 7
8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION 02 I At 12:45 a.m. on May 20, 1976, while operating at full power "B" Steam Generator 7 8 9 indicated steam flow started decreasing on a slow ramp.
Ihe steam flow indication so 3 I-stabilized at approximately 85% of full load steam flow. "B" steam generator 7 8 9 feedwater flow was transferred from automatic to manual control with an operator at 80 04 I continuous attendance at the controls. At approximately 9:45 a.m. a sphere entry 7
8 9 was made and the blowdown v4lve on the hi h resse line to the stelm flo tans-80 05 I mitter was foun to e eaking. Ap ug w s nsta ed wh1ch correcte the eaK.
7 8 9 At the first convenient outage the valve will be replaced to prevent a recurrence. 8o MO I I
7 8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATION I HaILaR IEI]
X IX iIXjI XJX LW1 j
IW112 10 1 LNJ 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION 08 i
Discussed in the "Event Description" above.
7 8
9 80 7
8 9 80 7
89 80 FACILITY METHOD OF STATUS
% POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION I El 11 0 1 0 1 NA I a I
NA 7
8 9
10 12 13 44 45 46 80 FORM OF ACTIVITY COrTENT RELEASED OF RELEASE MOUNT OF ACTIVITY LOCATION OF RELEASE 12 I J Z
z I
NA I
NA L
7 8
9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1 I00 10 1 Lzi I NA 7
8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION So10 10 1 1 NA 7
8 9 11 12 80 OFFSITE CONSEQUENCES 715 I NA 789 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION SLzi I NA 7
8 9 10 80 PUBLICITY I Event occurrence released to standard publicity list.
7 89 80 ADDITIONAL FACTORS 18l NA I
7 8 9 80 NAME H. L. Ottoson PHONE: 714-492-7700 (6
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