ML20040C260
| ML20040C260 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 01/20/1982 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR TAC-43938, NUDOCS 8201270463 | |
| Download: ML20040C260 (16) | |
Text
-
-e esuun SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, Box 15830, Sacramento,' California 95813; (916) 452-3211 January.20, 1982 REcayga 9
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' DIRECTOR OF NUCLEAR REACTOR REGULATION 9/
ATTN J0lIN F STOLZ CHIEF 4
N OPERATING REACTORS BRANCH #4 U S NUCLEAR REGULATORY COMMISSION.
WASilINGTON D C 20555 DOCKET NO 50-312 RANCII0 SECO NUCLEAR GENERATING STATION UNIT NO 1 RESPONSE TO INFORMATION REQUEST DATED JULY 21 1981 REGARDING STATION BLACK 0UT UNRESOLVED SAFETY ISSUE'A-44 The Sacramento Municipal' Utility District herewith submits the re-quested information pertaining to Unresolved Safety Issue A-44.
i Please find enclosed Tables 1, 2 and 3'of the Information Request, for each of the years 1976 through 1980. Ue have not prepared Table 4 of the enclosure due to time and resources'available.
j Johr[ J. Mat timoe Assistant General Manager and Chief Engineer i
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Enclosaro 1 - Pcg2 3 TAlsi.E 3 Diecol Canarctor Un:clarduled Doweitimo itecord Plant Niine Rancho Seco -
Calendar Yacr 19 76 Unit No.
1 Comunents - If any of time reported failures wouGtlaave been a LER Abstract Hi Downtime llours (Refer to attel failure under emergency con.11tions, please explain here.
cd LER Abstract s) Total
'frouble-Parts, Del - Repair /
, Refer to attactied LERs or Elie failures listed in Table 1.
llours sliooting tvery.etc teplace
- 13 (76-09) 168 Detailed records are not kept for trouble shooting, parts delivery times, etc.
- 12 (76-10) 216
- 11 (76-14) 340
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- - Pege 2 ace mr ur cheduled h ntime Record N nt Ntme R w h<, Seco TABLE 2 I
SP206.03A & B 5
SP206.02A & B Ilours of Downtime Raason for Reactor shutdown Reactor not shutdown Commenta Nwn t ime guy pgy pgy guy DGF DGF DGF DGf DCf l DGF A
B A
B l
Scheduled M31ntenance Preventive Maint. -
Biennial & Annual 9
16.5 24 9
Testing Equipment modifica-0 0
16 30
- 1) Replaced Y-plug connectors on j
tions.
B D/G - 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> out
- 2) Lube oil warning system modifications on B D/G - 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br /> out
- 3) Lube oil warning system modifications i
on A D/G - 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> out l
Time DC is unavoilable for emergency service 360 456 because of required tests l'
G a9' 6799
. - Pcgi 3 TAllt.E 3 Diecal Cencrator Unsclieduled Downtisio Record Plant Name Rancho Seco -
Calendar Year 19 77 Unit Ns.
1 LER Abstract He Downtime llours
~ reported failures would not have been a Comments - If any of time (Refer to attel failure under emergency conditions, please explain here.
,y
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Refer to attached LERs or tlie failures listed in Table 1.
Gd LER Abstract s)llours slioo t inA tvery.etc teplace
- 9 (77-1) 3 hrs.
Detailed records are not kept for trouble shooting, parts, delivery times, etc.
No LER No.
- 2 2
Replaced governor hydraulic actuator due to hydraulic fluid leakage.
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- - Page 2 Diocal C2narctor Scheduled Downtime Racord Pltnt N:me Rancho Seco TABLE 2 SP206.03A & B Calendar Year 1918 Unit No.
1 SP206.02A & B Ilours of Downtime Reason for Reactor shutdown Reactor not shutdown Comumen t s Downtime my UUr WF Wr DGF DGF DGF DCf DCf DGf A
B A
B Scheduled H32ntenance Preventive Maint.
0 106.0 175.5 4.0 Biennial & Annual Equipment Modifica-148 175 212 96 Fuel oil line modifications on "A" g
tion's
- Down 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Fire protection system modifications on "A" - Down 140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br /> Various modifications "A" down 148 hrs.
"B" down 175 hrs.
Fire protection system modifications
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Time DG is unavailable for emergency service because of required tests Annual Inspection 0
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- - Page 2 Diecel Cancrator Schaduled Downtime Racord Plent N me Rancho Seco TABLE 2 SP206.03A & B Calendoc Year 19 3 Unit H3 1
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B A
B Scheduled H2intenance Preventive Mainten-0 0
34 96 No Refueling Outage an ce ', Biennial &
Annual Modifications 5
0 0
29 Exhaust fan installation on A & B Air Start System modification and Fire Protection System modifications on B
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Time DC is unavailable for emergency service bacause of required tests 0
0 37 0
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- ' - Pegs 3 TA11 Lit 3 Diesal Cansrator Unschzduled Dowintimo itecord Plant Home Rancho Seco
- Calend:r Year 19 79 Unit H2.
1 Cosuments - It any of the reported' failures would not have been a LER Abstract &
Downtime llours
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Gd LER Abstract s) Total Trouble-Parta, Del - Repair /
i Refer to attached LERa or the f ailures listed in Table 1.
lleurs shooting tvery.etc taplace
- 6 (79-17) 24 hrs Detailed records are not kept for trouble shooting, parts delivery times, etc.
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Enclosura 1 - Paga 3 TAul.E 3 Dieool Cinarctor Un:cheduled Downtime Record Plcnt H:me Rancho Seco -
Colender Yaor 19 80 Unit Ha.
1 LER Abstract &
Downtime llours
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"*I ed LER Abstract s) Total Trouble-Parts, Del - Repair /
! Refer to attached LERs or the f ailures listed in Table 1.
llours shooting tvery.etc teplace
- 5 (80-12) 2 Detailed records are not kept for trouble shooting, parts delivery times, etc.
- 4 (80-13) 672
- 3 (80-24) 45
- 2 (80-41) 24 1
- 1 (80-49) 90
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