ML19347F146

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Monthly Operating Rept for Apr 1981
ML19347F146
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 05/10/1981
From: Elam G
GEORGIA POWER CO.
To:
Shared Package
ML19347F140 List:
References
NUDOCS 8105150324
Download: ML19347F146 (7)
v • d • e


Text

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b OPERATlHC DOTA FEPORT

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DOCKET HO. 50-366

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DATE D5-10-81

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. ~~- ~ COMPL ETED BFCERRT'EL AM ' ----

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TELEPHONE ( 912 ) 367-7701 x 203 g

OPEFATINC IT ATUS'

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. Notes 1.

Unit Henet E.I. Hatch Nuclear Plant Unit 2

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Report 36g* Period:

04-81-~~

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- - ' 3. Licensed Thernal Pouer (MWL) 2436 Q

4 Haneplate Rating (Cross MWe): 887.0

-~' 5 r De rig n Ele ct ric a t F& t i ng ( Me t MW e ): 784.0

~-~~~. -

- 6: Marinun' Dependable Capacity (Cross MWe): 805.7 ca:::

7.

n.. nun De,end..ie Ce,ecitv (net MWe>> 772.7

---~ B- 'Ir Ch 6n g e s* 0c cur I n Ca pac i t y R at i ng s ( It en s Numb er-'3 Thro ugh' 7) Sinc e La s t* Report;- C1 ve Rea6 ene r D.. _.. _ _ _ _ _.. _. _ _.

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3

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--It"' Hours IT~ R e p o r tTn g P e rT6d

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719 2879 14496

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g - 12. Hunber Of Hours Fesctor Was Cret6 cal -

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'~~1431^.0

'9664.8

' 13. Reactor Reserve Shutdoun Hours

- - ~ ~ ~ ~ ~ ' - - ~ - 6.0

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'*" 14 T H o~u r s ' G e n e r s t o r On-L'ine

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4.0

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g ~~ 15. Unit' Reserve Shutdoun Hours

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- g,gy,9g, 16^: Cross ~fhermal Energy Cenerated ( MWH )

56716e 888216

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485181'

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- 6555490 g -- 18. ' Ne t' Ele c tr a c o l Erergy Gener a ted (MWM)'- - - " - ~ ~

fl. 5

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6241421 19:'Unst' Service Factor - - - - ~ - - - - -

"62)0

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45 2 620~~

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g - ~21. Unit'Capec sty Factor ( Using MDC Net ) ~-

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- - - 55.7

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2 2 ~. ~ Un i t ~ Ca p e c s t y F a c t or-( U s ing DER Net) 54.9

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2275 g - 24; Shutdouns Scheduled OveFNext} 6 Months ( Type. Datei end Duratie. of Ea ch ):

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25. If Shut Down At End'0F Report Period. Estineted Date' of Start F ~

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26. Unite In Test Status'(Prior to Connercial Operation)8- ~ ~ ~ ~ '-'-

F o r e c a s t "~~---- -- ~ ~ A c h i_e v e.d g -

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..A.VER1CE DA.I.LY E:Olf POCER-LE, VEL..-. - - - - - -.. - - -----....

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,8 00CrET Mo. 50-366

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~ - DATE 05-10-81 g_

. _ _.___ _, COMPLETED BY CERRY Elan

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T E_L E P. H ONE ( 912 ) -367-7T81 m 203 p

4*._ MONTH. 0_4-81. _. -.....,

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DAY AVERACE DAILY FOUER LEVEL

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DOCKET NO.

50-366 UNITSilUTDOWNS AN) POWER REDUCTIONS UNIT NAME liatch 2 DATE 5-10-81 COMPLETED BY G. ft. Elam REPORT MOMil 4-81 TELEPilONE 912-367-78'il q

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g Cause & Correcfhe

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}.y U3rk Event (i

Action to Licensee Ev vl, No.

Date k

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al j6 R*Po,i e v3 u Ptevent Recurrence F

g 81-34 810404 F

5.0 A

5 NA '

CH llTEXC.Hl Lb,ad.~ reduction due to. loss of feedwat-er heaters 81-35 810409 20.d B

5,

. NA HC HTEXCH Load. reduction t'o repair condenser tube.1eak

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CE InSTRif Rx strant - Grou'p 1 isolation while N

3 81-36 810410 F-14.2 B.

c' performing surveillance on low vacuum switches 81-37 810411' F

. 2.0 i B

'NA:

CE '

INSTRU Recovery from above s' cram #81-36 G

3 NA EB PUMPXX Rx scram due to 2A RFP tripping which 11.0 k, 81-38 810411 F

was caused by irhproper transfer of bus loads.'

81-39

_810411 f

18.0 G

5

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Es-PUMPXX Recovery from above scram #81-38 yc 4

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. 2

.J F: Forced Reason:

Method:

Exhibit G. Instrucilons l-Manual for Preparation of Data

,5: Scheduled.

A Lquipment Failure (Explain)

Entry Sheets for Licensee B4bintenance of Test

'2 Manual Scram.

C. Refueling 3 Automatic Scram.

' Event Report (LER) File (NUREG-l D-ReEolatory Restriction 4 -Cont.inuations 01611 5-Load Itduction E-Operator T aining A Ucense Emendnation 9-Other (Explain)

Exhibit I.Same Source 3

F-Administrative Go e:ationat Error (Emplain)..

r (9/77)

Ilother (Emplain) -

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o DOCKET NO.

50- W

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UNIT Sil0TDOWNS AND F0WER REDUCTIONS UNIT NA5tE Hatch ?

DATE b-10-81 COMPLETED BY G. H. Elam i

REPORT MDET'.I 4-8I TELEril0NE 912-361-7851

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Licensee E+

h, Cause & Correciive

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Event

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Date E

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E jdi Report 8 mu Prevent Recurrence N

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'. fiA RB CONROD Load' reduction to perform rod ' pat-81-40 810416 S

5.0 F

5 tern adjustment

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81-41 810421 F

10.5 B

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.NA HC llTEXCH Load reduction to check for condenser tub 6 feak.s

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Method:

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i Exhibit C-Instructions F: Forced Reamn:

i I4f anual for Prepararlon of Dara

.5: Scheduled A-1quirment Failure (Emplain)

B4taintenance of Test 24tanual Scram.

Entry Sheets for Lkensee

3. Automatic Scram.

Event Repors (LER) File (NUREG-C Refueling 4 -Continuations 0161) l D Regolatory Restriction E-Operator Tralr.?ng& Ucense Essadastlose. -

5-Inad noduction i

l F Administrative g m' (gg}

Ealdbit I-Same Somece J

GOperational Earw 'Esplain),.

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NARRATIVE REPORT UNIT 2 April 10th Rx auto scram at 1334 due to Group 1 isolation while test shop was performing surveillance on low vacuum switches per HNP-2-3104 April 10th Rx critical at 2033 hrs, on line at 0344 hr.

on April lith April lith Rx auto scram at 0621 due to low Rx water level caused when booster pump 2A tripped which in turn caused booster pump 2A to trip.

This event happened during the transfer of house loads April lith Rx critical at 1105 hrs., on line at 1722 hours0.0199 days <br />0.478 hours <br />0.00285 weeks <br />6.55221e-4 months <br /> i

G

HATCH 2 SAFETY-RELATED MAINTENANCE REQUESTS TO BE REPORTED FOR APRIL 1981 NUMBER DATE COMPLETED DESCRIPTION TUTES z-le-s1 Performed P>l (per HNP-2-6020) on main steam relief valves 2B21-F013A-H and K-M 80-4816 2-15-81 Repaired feedwater check valve 2B21-F010B after the valve failed LLRT 81-305 2-17-81 QC performed visual inspection of pipe supports and hangers 2B21-G001 per HNP-907 81-945 2-16-81 Repaired and calibrated SRV tailpipe pressure switches 2B21-N301A-M 80-4887 12-23-80 Moved valves 2B31-F029 and F030 to directly below the tee in the bottom head drain line (per DCR 80-345) 81-1643 3-15-81 Investigated overlap of IRM

'B' 2C51-K601B from range 1

to range 7 81-1571 3-12-81 Inspected all IRM penetrations cables and connections 2C51-K601A-H 81-304 3-7-81 QC performed visual inspection of piae supports and hangers 2B21. 01 per HNP-907 81-1143 3-30-81 Tightened nut on bottom of pipe clamp 2E11-RSW-R40 80-5018 12-10-80 Removed pipe restraint 2E21-CS-H7, removed old paint, buffed, repainted and installed 81-725 2-11-81 Removed trip and throttle valves on RCIC turbine 2E51-

C002, performed PT test and reinstalled 81-805 2-19-81 Modified hangers 2G11-rad-H90 and 2G11-RAD-A91 and installed new hanger 2G11-RAD-HR700 per DCR 80-394

81-1049 2-19-81 Replaced damaged section of piping between drywell equip-ment sump to radwaste piping 2G11-F020 and 2G11-N011 80-2436 6-4-80 Replaced snubbers 2L31 81-736 2-16-81 Inspected and tested inaccessi-ble safet related mechanical snubbers (y2L31) per HNP-2-6804 81-1102 2-18-81 Replaced snubbers 2N37-TBP-R14A with new snubbers SN5330 80-1139 6-16-80 Made conduit penetrations and embedded sleeves per DCR 79-426 in radwaste building 2P65 81-1511 3-16-81 Removed strongback airlock door (2T23) for drywell entry and reinstalled after drywell closeout 81-1534 3-13-81 Removed S

drywell equipment hatch 2T23 for MSIV work 81-124 2-11-81 2T43 reactor building Unit 2,

pulled circuits 2TLX702C02 and TLXX702C04, removed old circuits

2MR2504, 2505, and
2506, removed smoke detector 2T43-43-N024B 81-755 2-10-81 Replaced air cylint.ers and air control valves on drywell to torus vacuum breakers 2T48-F323A-L 81-917 2-14-81 Replaced air supply line on torus to drywell vacuum break-ers 2T48-F323 H4I 80-2930 10-21-80 Installed concrete
pad, supported steel and chiller units for LPCI inverter cooling system 2Z41 per DCR 78-68 80-5101 12-18-80 Modified the 6" core drill (per DCR 78-55) to allow for clear-ance between the 4"

fire prot-ection pipe and block wall in cable spread 2Z43

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