ML20032A079
| ML20032A079 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 10/15/1981 |
| From: | Kay J YANKEE ATOMIC ELECTRIC CO. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR FYR-81-143, NUDOCS 8110280264 | |
| Download: ML20032A079 (11) | |
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YAu1KEE ATOMIC ELECTRIC COMPANY 2.C.2.1 h
1671 Worcester Road, Framingham, Massachusetts 01701 FYR 81~143 T
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October 15, 1981 p
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United States Nuclear Regulatory Commission g: OCT2 719815 @
Washington, D. C.
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v.s.,o2:a arxwass C i
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/p Atten tion :
Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch #5
,jf C/f Division of Licensing
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References:
(a) License No. DPR-3 (Dockuc 30-29)
(o) USNRC letter to YAEC, dated July 9,1981 Subject-Response to Information Request Regarding Station Blackout (USI A-44)
Dear Sir:
Enclosed please find our response to your request. for information for the USI A-44 effort to determine. the relisbility of onsite standby diesel genera to rs. The information provided summarizes operations data and scheduled / unscheduled down time for the Yankee Plant diesel generators for the years 1976 through 1980, inclusive.
We trust this information is satisfactory; however, if you have any questions, please contact us.
Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY J. A. Kay Senior Engineer - Licensing JAK: dad Enclosure D
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Enciscura 1 - Pcg3 2 Diesel Generator Scheduled Downtime Record Plant Name Yankee-Rowe Calendar Year 19y Unit No.
1 i
llours of Downtime Reason for Reactor shutdown Reactor not shutdown Comments Downtime y
y y
guy--DGe lf f
Df DGf DGF Scheduled Haintenance Preventive Maintenance 219.7f 8.75 8.5 Annual (OP-5350)
Equipment Modification / Replace-26.0 4.25 Replaced Tachometer Cable ment 40.75 Cleaned Radiator 19.25 Replaced Temperature Switch 2.0 Replaced Contact Fingers on ACB b
I l
. Time DC is unovoilable for emergency service because of required tests
Ecclem ro 1 - Pcg2 2 Diesel Cenerator Scheduled Downtime Record Plant Name Yankee-Rowe TADl.E 2 Calendar Year 193 Unit No.
1 4
Hours of Drwntine Reason for Reactor shutdown Reactor not shutdown Comments Downtime wt WF ! UGF WF Wf DGf DGF DGF DGF DC#
- 1
- 2
- 3 Scheduled Haintenance Preventive Maintenance Annual (OP-5350) 170.5 218.2S51.75 Equipoent Modification / Replacement 5.0 5.0 5.0 Removed Water Filters
. Time DC is unavoilable for emergency service because of required tests
N Ecc1:cero 1 - Pcg3 2 TABLE 2 Dier>>l Generator Scheduled Downtime Record Plant Name Ynnkee-Rowe Calender Year 193 Unit No.
I s
i llours sd Downtime Reason for Reactor shu:down Reactor not she-lown Comments
' wn t ime pGr UGF UGr DGr DGF DG#
DGF DG5 DCf DGF 1
2 3
Scheduled Maintenance Preventive Maintenance Annual (OP-5350) 34.0 52.25 9.5 Equipment Modification / Replacement 495 Replaced Cylinder Blocks 7.75 Replaced Starter Motor Brushes
. Time DC is unavoilable for emergency service because of required tests l
Enclocuro 1 - Peg 2 2 TAM.E 2 Diecal Canarctor Scheduled Downtime Record Plant Name Yankee-Rowe Calendar Year 19g Unit No.
I Hours of Downtime Reason for Reactor shutdown
{
Reactor not shutdown Comumen t s Downtime 7Cy UGF uur UGr UCIF~ TTis DCs Dce Dcr DCF 1
2 3
Scheduled Maintenance Equipment ModLfication/Replacemen t 343 Replaced Voltage Regulator 4.0 Replaced Water Heater 43 Replaced Oil Heater
. Time DG is unavalloble
-for eme rgency se rvice because of required tests O
o
Encicatra 1 - Pcge 3 TABLE 3 Diesel Generator Unscheduled Downtimo Record Plant Name Yankee-Rowe Unic No.
1 Calendar Year 19_16-80 I
Comments - If any of the reported failures would not have been a LER Abstract &
Downtime llours failure unde'r emergency conditions, please explain here.
(Refer to attel Trouble-Pa rt a. Del - Repair /
Refer to attached LERs or the failures listed in Table 1.
ed LER Abstract s) Total tiours shooting ive ry.etc teplace 1
272.5 1.0 271.6 Plant shutdown for refueling, radiator removed and sent off-site for cleaning.
2 5.0 0
0 5.0 3
3.0 0.5 2.5 4
169 1.0 168 Plant shutdown for refueling, radiator removed and sent off-site for cleaning.
LER 77-41 b
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e 4
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