ML13308B454
| ML13308B454 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 08/22/1977 |
| From: | Curran J SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| RO-77-09, RO-77-9, NUDOCS 8103050961 | |
| Download: ML13308B454 (3) | |
Text
LICENSEE EVENT REPORT LER (77-09)
COROL BLOCK:
(PLEASE PRINT ALL REQUIRED INFORMATION]
1 6
LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE 0 lcA O
S101s I 0
- 10,0101 001-101 0l 41 1 1 1 011 7
89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER -
EVENT DATE REPORT DATE lyCON'T [ P i0 TJ L J 1 01 51011- 0 121 01 61 101 71219-17 171 I 018 12 1217 1 7
8 57 58 59 60 61 68 69 74 - 75 80 EVENT DESCRIPTION 0 Westinghouse Electric Corporation recommended to Southern California 7
8 9 3 I Edison by letter dated July 29, 1977, that the maximum pressurizer 7
8 9 o80 4 I heat-up rate should be reduced from 200oF/hr.An Operating history showeo 7
89 60 05 I that all pressurizer heat-ups at San Onofre have been at rates consid erably less than 100 F/hr. The necessity for changes to the Technical 60 7
89 Specifications is under invesggation (71-22).
80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPUER MANUFACTURER VIOLATION 07 LCA.J LBJ Ivi EISISI EILI INI IW 11 120l1 J
78910 11 12 17 43 44 47 48 CAUSE DESCRIPTION 0 [Recent analyses by Westinghouse revealed that pressurizer heat-up rates in excess of 7
89 09 I 1000 F,/hr for all oDerating Westinghouse plants are not consistent with original 7
89 10 I pressurizer specifications.
7 8 9 6
FACILITY METHOD OF STATUS
% POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION M1 L EI I 10 101 I NA I Ldj I Letter from Westinghouse 7
8 9
10 12 13 44 45 46 80 FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 12
[J Z
NA I
NA 7
8 9
.10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1 0 1 01 01 [Z I NA
- 1.
7 8 9 11 12 13 80 PERSONNEL INJURIES 4
0NUMBER DESCRIPTION 1
0 1 01l 01 1NA 7
8 9 11 12 80 OFFSITE CONSEQUENCES 15 NA 7
89 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 16 z
I NA 7
8 9 10A 80 PUBLICITY 17 l
NA 7
8 9 80 ADDITIONAL FACTORS 80, 18 I
191 7
89 NA PHONE: 714 492 7700 so
/
/
40*-1);
JGP0 881* 667
REGILATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
DISTRIBUTION FOR INCOMING MATERIAL 50-206 REC:
ENGELKEN R H ORG:
HEAD J T DOCDATE:
08/25/77 NRC S CA EDISON DATE RCVD:
02/22/78 DOCTYPE:
LETTER NOTARIZED.
NO COPIES RECEIVED
SUBJECT:
LTR 1 ENCL. I LICENSEE EVENT REPT.
NO.
50-206/77-09 CONCERNING PRESSURIZER HEAT--UP RATES IN EXCESS OF 100 DEGREES F/HR....
PLANT NAME:SAN ONOFRE -
UNIT 1 REVIEWER INITIAL:
XRL DISTRIBUTOR INITIAL:
- ++****+**+****
DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS *+*+ ++++*+++
LER (BACKFIT)
(DISTRIBUTION COD INTERNAL:
EG FILE *W NRC PDR**W/ENCL I
F
/2 ENCL EXTERNAL:
LPDR 'S MISSION VIEJO, CA **W/ENCL REGION V**W/ENCL TIC**W/ENCL ACRS CAT B**W/O ENCL DISTRIBUTION:
LTR 7 ENCL 7 CONTROL NBR:
4Q99 SIZE:
IP+IP THE END
- f**
r KD
S( SEP 26 PM213