ML19345G089
| ML19345G089 | |
| Person / Time | |
|---|---|
| Site: | Humboldt Bay |
| Issue date: | 01/26/1977 |
| From: | Carroll J PACIFIC GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| RO-77-01, RO-77-1, NUDOCS 8103020173 | |
| Download: ML19345G089 (1) | |
Text
.
LICENSEE EVENT REPORT
,,. CONTROL 8 LOCK:(
l (', - l l l
l (pLEAmE PRINT ALL REQUIRED INFORM ^.TIO7
)
1 6
4A tCENSE NUMBER Y E TV lC l Al Hl M!B l1 l l 0 l 0 l-l 0l Ol 0l 0l C{-l 0 l O l l 4l 1l1l 1l 1l l Cl1 l O
7 89 14 15 25 26 30 31 32 CATEGORY T
SO DOCKE' NUMBER EVENT DATE REPORT DATE hCONT l P l O l
[PJ y l 0 l 5 l O l-l Ol 1l 3l3 l l011l 2 l 6l 7l 7l l0 l1l2 l 6l 7l 7l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION 95 l In the course of the ongoing seismic design review of the nuclear unit, it was deter-l 7 89 80
@ l mined that the flow capability of the reactor vent valves is 1ki,000 lbs/hr per valve l 7 89 80
@ l at an upstream pressure of 1250 psig. The Technical Specification (IV.1.d.) describe l 7 89 80 DE l a mirdmna capability of 196,000 lbs/hr per valve. Tne event is not a repetitive oc-l 7 89 EE l currence. Larger valves meeting this recnirement will be installed durire the currenk0l Sv5TEu CAusE cow"oou'mv
- "5**
(
7.-01)
~
80 cov % Eur CODE CODE COVPCNENT COOE SJPPUER MANyFACTURER vaAtm O
l SIF l W l VI AlL lU l E l X]
l 0l lI! l 1l2 l0 l y
7 89 10 11 12 17 43 44 47 48 CAUSE DESCR:PTiON DE lAt the time the reactor vent valves (Masoneilan Oat No h520-3 inch 900 psi control l
7 89 80 M Ivalves) were procured in 1965, an error was =ade in preparing the specification with l
7 89 DE l respect to flow capability. Larger valves teeting this requirement vill be installed.80l O
FAcuTY vEtw00 0F STATUS
% POW ER OTHER STATUS 0.SCOVERY OtSOOVERY OESCARTON LHJ lololoi i n^
l 12U l Im I
1 7 8 9
10 12 13 44 45 46 80 E'5EO & NRISE AoanN10, A:way to iTe~ 0, RutiSE M
L2J L2U l ta l
I n^
l 7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRPTON DE Ic l ol ol L _j l
UA l
7 89 11 12 13 80 PERSONNi L INJUR:ES NuvBE R DESCR2PTON M 10l0lo1 I
HA l
7 89 11 12 80 I
OFFSITE CONSEGUENCES DE I UA I
7 89 80 LOSS OR DAMAGE TO FACILITY TYPE DESCP@ TON D2 lZJ l
UA I
7 89 _
10 80 PUBLCITY DE I NA l
~
P00R ORIGINAL
__,_S Hl NA l
7 89 80 f/o3o40473 DE i i
7 89 80 J. C. Carroll 415-781-L211 Ext. 1516 NAME:
PHONE:
o,.......,
~. - -. - -
c.,-..
.-.