ML19317F804
| ML19317F804 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 04/04/1975 |
| From: | Colombo R SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML19317F799 | List: |
| References | |
| NUDOCS 8002210564 | |
| Download: ML19317F804 (1) | |
Text
UCENSEE EVENT REPORT
' CONTROL CLOCl l
l l.l l
l (PLEAE PRINT f.LL REIUIRED INFERMATl!N) 1 6
h NAM
. LCfNSE NUMBIA E
TYPE
( ^s]lc I ^f RI sis 11 I I q oI--I ol olo Io lo I-I oI oI l 4l 1111 IP l Io Iri 7 89 14 15 25 2S 30 31 32
"' 7 Ea$
3 DOCxET NuYBER EVENT OATE REPOAf DATE CArrouw C 1 CONT l D l I l l Tl lL l
_l 0 l 5 l 0l _l 0 l 3l 1l2 l l 0 l 3 l 2 l 5 l 7 l5 l l0 l4 l0 l4 l 7l 5l 7 0 57 58 59 60 61 60 69 74 75 80 EVENT DESCRIPTION gg lOn February 12, 1975 during a high pressure reactor trip, RPS Channel "D" high pressurp -
7 89 80 RR l bistable did not actuate. A check of the channel necessitated recalibration of the l;.l 7 89 80 -
Q l pressure transmitter. The Plant Review Committee determined that the remaintne 1
7 89 80 EU l pressure transmitters would be recalibrated within 60 days. The recalibration l'
7 89 60 -
3-l indicated that three units had drifted outside of the Technical Specification limits. l 7 89 m.e (AO-75-4) 80 E
COCE COMPONENT COOE A
C A
vcLAriON
^
0 lIlAl W lI lN l S l Tl RlU l lL l lWl1l2l0l l Yl 7 09 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION M [The specifications for the pressure transmitter did not include limits associated with l1 7 89 80
@ l drif t tolerances. The manufacturer stated drift to be 0.1%/ month, re.ulting in a l'
7 89 30.
] l pressure error greater than anticipated between recalibration intervals stated in the ll kd SxHkaku. &
\\
/
'rAcurY METsc0 cF STATUS
- % POWER OTHER STATUS C:SCOVERY DISCOVEAY DESCRiPTON 8
Lc]
l o l o l o l i NA I
LcJ l Ni 7 8 9
10 12 13 44 45 46 80 ACfrATY COr.f EN T RELEASED CF AELEASE AMOUNT OF ACTMTY LOCATION OF PELEASE H
Izl Lzj l
TA l
l NA I
l 7 0 9
10 11 44 45 80 PERSONNEL EXPOSURES NUMf.e A TYPE OESCA Pf!ON l o l ol 01 LzJ l NA l.
1 7 89 11 12 13 80 PERSONNEL INJURIES 5 )
NUMDCA OE SCR4PTION H lol ol ol I NA I
7 89 11 12 80 OFFSITE CONSEGUENCES BB l NA l]
7 89 80 LOSS OR OAMAGE TO FACILITY TYPC CESCA*DiCN l_
BE Lzj l NA 1-7 89
'10 80 PUBLICITY
_ _ Q l' Sacramento Bee" informed March 27; "The Union" informed March 28, 1975.
l$
7 89 80 g;00a210 % 7
) ADDITIONAL - FACTORS
__ N,_]0 9 I-y eo
/l l
- 7 09 eo I NAME. R. U. Colombo gggg (916) 452-3211 GPO.* C I. 6 6 7 1
.