PM-81-583, Forwards Monthly Operating Rept for June 1981

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Forwards Monthly Operating Rept for June 1981
ML20009C028
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 07/10/1981
From: Manry M
GEORGIA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
PM-81-583, NUDOCS 8107200186
Download: ML20009C028 (1)
v • d • e


Text

_

Georgia Power Company Post Office Box 442 Baxley, Georgia 31513 Telephone 912 367-6666 912 367-7781 b

Georg a Power Edwin I. Hatch Nuclear Plant

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NRC Monthly Operating Report

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Office of Inspection and Enforce.?.cnt J

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United States Nuclear Regulatory Commission ~,/y Q'

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Dear Sir:

Per Tech Specs section 6.9.1.6 please find attached the NRC Monthly Operating Re,; ort for llatch Unit 1, Docket #50-321.

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8107200186 810710 PDR ADOCK 05000321

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OPERATING DATA REPORT

_ _ ' - - ~ ~ _ _ -

DOCKET HO. 50-321 D A T E 0 7 - 14

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T ELEPHONE ( 912 ) 367-7781 x 203 UPEEATING STATtTF

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  • Hotes 1~. ' U n i t ' H a n e t E,I. Hatch Huclear Plant un6t 1

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z. Rd p sr t Fn g P e Fi o d 06 '~

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~~~~~~~

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~ ~'-'- - - ~ -

- 37 Licensed Thernal Power (MWL): 2436~'

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~ 4-~Heneplate Rating (Cross MWe): 809.3

d. Design Electrical Ra ti ng (He t' MWe ): 77773" ~ ~~

- - ~ ~ ~ " ' - ~ ~ ~ ~ -

~ 6:~Maxinun Dependable Capacity ( C r o s s H_W e ): 796.3

~* ~

~ ~

' --~7 ~~~ M a x i n u n Dependable Capacity (Het MWe): 756.8 If}hanges _0ccuF in Capacity RatW gs'C'Iteni Hunbe6~3 Through' 7; Since'Last~Repo6tT Cive Reasons

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Po w e rte v e l T o Uh i ch '~ R e s t r 1 c t e d,~'TF ' A n y ~( Ne t M W e ) T- ~~~ ~ ~ -

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' IO. Ritsons For Restrictions, If Any:

. This Month

- - Yr.-to-Date

'--~~-- C u n u l a t e v e ~--' - - ~ ~~

~ ~~ ~ ~

1I.

HFurs'In' Reporting' Period ~ ~ ~

'~

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~~'720' "4 3 4 3~ ~

~-' 48191

~ ~~~~ ~ ~

~127 Hunber Of Hours Reactor Was Critical.

~- - - - ~- - - - 568.1 ~ ~ ~ ~ - - - - - - - -

17 8 4. 5 ' ---- - - - ~ -

35296.5

-- ~~ --

~13.

Reactor Reserve Shutdown' Hours

' - - - - ' - ~ - - - - - ~ - - - ~ ~ -

0.0 ----

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0.0

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7 4~~ Hours Generator On-Line

' ~ - - - ~ - -

-- ~~

-- ~ ~ - ~ ~ ~ 28r.8 1440.0"

~~' '32885.4 15.~ Unit Reserve Shutdown Hours

- ~'

~ - ~ ~ ~

~' - - ~ -

0.0 ~~ - ~ ~ ~ - - " - "

0 0 ~~ ~ ---~~ ' ~

0.0

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16 Gross Thernal Energy Generated (MWH) ~ - - - ~ ~

~ ~~511713 - ~ ~ ~ ~ ~ - ~ ~ ~ ~ ~ 2 6 6 8 0 2 / ~ ~ ~~ ~ ~~ ~ -

68470909 ~~ ~

T7~ Geoss~ Electrical Energy" Genera ted' ( MUH )

~~ '

~

158590 86827F~~~

22167920~ ~ ~~ He t E le c te I ta l Energy Genera ted (MWH)- ~~

~

--'--~ 14 4 217 -- ----- ~ ~ ~ 8 0 2 9 8 5

~ - '

210554(3 ~~~ ~ ~~~ ~~

19 7 Unit Service Factor

~~ -'~ ~ - - ~ - ~ - -

~ ~ ~ --- ~ - - ' 3 9. 1 ~ ~ ~ ~

- - - - ~ ?. 3. 2 - ~ ~ - ~ ~ ~

68.2

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68.2 ~~

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~2U~UniE Av~aTlability Fa c t o r - -----" ~~~'~~~ -~

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~ 73. 2~ - U n i t Capacity Factor ( Us i ng MDC Net)'

~ ~~ -- 2 6. 5

-- - -~ ~ ~ - - "

~24.4 57.7

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-- ~

~~ 22 EUni t Ca pac ity Factor (Using DER Het) 25.8

- - - - - - ~ - ' -

~23.8

--~

56.2

~~

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-'Z C UnTt" Forced Outage Rate

~ ~ ~ ~ ~ " ~ ~--

- --~~ ~~~ T0 7 9 "~ ~

~~~ ~ ~31'9~~ - ~'~~~

~20.8- ~ -

- 2 4 ~-'.S h u t d e w n s Scheduled Over Hext 6 Months (Type. Date-

'a'n d Duration or Er. :h F

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25 IF Shut Down At End Of Report' Period,~~ Estimated Date of Startup's

- ~~~ Achieved,

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- Units In~ Test Status (Prior to Connercial~0perat'icn):

~~

~ ~ ---~~ ~ ~~ F o r e c a s t INITIAL' CRITICALITY ~ ~

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"C0MMER CITIL 0PER AT10W-

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50- W I UNIT NAME Hatch..

DATE 7-10-8L REPORT MONTH June 1981 COMPLETED BY D. G. Atwood TELEPilONE 912-367-7851

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Licensee je, vb Cause & Corrective No.

Date g

3g g

.c g &

Event u?

83 Action to

$E 5

g 55 g Report #

<N G

$U Prevent Recurrence d

81-41 810617 S

.5 B

1 NA.

HA ZZZZZZ Turbine overspeed trip speed 81-42 810617 F

26,.8 B

5 NA HA ZZZZZZ Startup from #81-41 81-43 810619 F

20.7 8

1 NA IA INSTRU Power reduction to inspect for tip tube damage 81-44 810619 F

41.3 8

5 NA IA INSTRU Startup from #81-43 81-45 810623 F

13.7 A

3 NA HA ZZZZZZ Scram from reactor pressure hi due to generator runback.

81-46 810624 F

23.9 A

5 NA HA ZZZZZZ Startup from scram #41-45 81-47 810625 F

32.5 A

5 NA HC HTEXCH Power reduction due to loss of conden-ser vacuum I

2 3

4

/

F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment' Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram.

Entry Sheets for Licensee C. Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory Restriction 4 -Continuations 0161)

E-Operator Training & Ucense Examination 5-Ioad Peduction F-Administrative G-Operational Error (Explain) 9-Other (Explain) 5 Exhibit I-Same Source (9/77)

Ilother(Explain) o C

s-

50-321 DOCKET NO.

UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Hatch 1 DATE 7-10-81 COMPLETED BY D. G. Atwood REPORTMONTH June 19R1 TELEPilONE 912-367-7851 w.

B E

m Licensee E-r, gvl, -

Cause & Corrective

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o3 Action to No.

Date g

3 5j

,g5 Event e# u?

o Prevent Recurrence

$E 5

jsy Report #

P d

81-34 810601 S

162.4 C

1 NA ZZ ZZZZZZ Scheduled refueling outage 81-35 810607 F

47.3 A

2 NA HA ZZZZZZ Reactor scrammed' to allow fast shut-down of turbine 81-36 810609 S

26.6 B

2 NA ZZ CONR0D Reactor shutdown to test scram time 81-37 810610' F

64.3 A

3 NA-IA INSTRU Reactor auto scrammed due to ABRM and IRM spikes 81-35 810613 F

37.1 A

3 NA IA INSTRU Reactor scranmed due to high IRM

~

81-39 810615 F

65.7 A

2 NA IA INSTRU IRMs spiked causing rods to be moved from targeted positions 81-40 810617-F 2.3 A

5 NA IA INSTRU Startup from shutdown, 81-38', 81-39 1

2 3

4

/

F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A Equipment'Failme(Explain)

I-Manual for Preparation of Data B Maintenance of Test

2. Manual Scram.

En:ry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D Regulatory Restriction 4 -Continuations 0161)

E-Operator Training & Ucense Examination 5-Ioad Beduction 5

F-Administra ive 9-Other (Explain)

Exhibit I Ssme Source G-Operational Error (Explain)

(9/77)

Il O her(Explain) e

l DOCKET NO.

50-321 UNIT SilUTDOWNS AND POWER REDUCTIONS UNIT NAME Hatch 1 i

DATE 7-10-81 COMPLETED BY D. G. Atwood REPORT MONTH June 1981 TELEPilONE 912-367-7851 i'

l-e.

E a

l No.

Date E

jj 3.Y 3 EO "e

Licensee IEe E%-

Cause & Corrective j

{i f'O8 Action to g&

Event Prevent Recurrence P

$=

5 5 6 =g Report #

mO o

a u

Q 81-48 810627 F

7.5 A

5 NA CH TURBINE Load reduction to repair overspeed test switch on reactor feed pun.p turbine 1

1 2

3 4

,i F: Forced Reason:

Method:

Exhibit G. Instructions S: Scheduled A Equipment' Failure (Explain) 1-Manual for Preparation of Data B Maintenance of Test 2 Manual Scram.

Entry Sheets for Licensee C Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D Regulatory R:striction 4 -Continuntions 0161)

E-Operator Training & License Examination 5-Ioad Feduction S

F-Administrative 9-Other (Explain)

G-Operational Erro { Explain)

Exhibit I.Same Source (9/77)

Il-Other (Explain) 0

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N.

NARRATIVE REPORT UNIT 1 June 1st Unit in force refueling outage June 4th 1248 reector critical

  • June 7th 1825 reactor scram to allow fast shutdown of turbine; Rx critical at 0258 on 810608 June 9th 1745 reactor shutdown in order to perform-scram time test; 1940 reactor critical June 10th 2019 Rr scram due to APRMs, B IRM spiked June lith Rx critical at 0300 hrs June 12th 1237 Rx mode switch to run; 1731 rolling turbine; 1900 overspeed trip test complete; 1930 rerolling turbine; 1954 tripped main turbine at 1200 rpm due to main thrust bearing; 2022 reduced power to inspect thrust bearing; 2118 Rx mode rwitch to start and hot standbg June 13th 1228 Rx scram due to high IRM June 14th 1329 Rx critical June 15th 0138 Rx manual scram due to

'B' and

'D' IRMs spiked causing rods to be moved from targeted positions; 2148 Rx critical June 17th At 1233 mode switch to run; 1814 main turb rolling; 1920 main turb ti to line; 2139 unit off line for turbine overspeed trip test; at 2208 unit tied to line June 18th At 2230 shutdown in progress to enter drywell to inspect for trip tube damage June 19th At 0055 main turb tripped:

0150 Rx mode switch to start and hot standby; 1918 Rx mode switch to run; 2023 main turbine rolling; 2140 unit tied to line June 21st Decreased Rx power to run OD-1 at 1920; 1935 stopped decreasing Rx power:

2308 increasing Rx power o

June 23rd At 1454 Rx scram due to Rx press high due to gen. runback; 2040 Rx critical 4

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I oane 24th-Unit tied to line at 0435 June 25th Decreasing load at 2300 due' to loss of vacuum due to SJAE flooded; 2340 stopped decreasing load June 26th 0330 increasing load June 27th At 0130 reducing load to perform weekly turbine test; 1413 load was reduced for repair of overspeed test switch on 1A-RFPT; 1780 increasing load O

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HATCH 1 SAFETY-RELATED MAINTENANCE REQUESTS TO BE REPORTED FOR JUNE 1981 NUMBER DATE COMPLETED DESCRIPTION 81-1933 5-21-81 Replaced nonqualified wi.th qualified drywell sum valve reset switches A71-52 9

81-974 5-27-81 Removed RPV head piping and ductwork B11-G001 on 3-5-81, and reinstalled piping and ductwork as per HNP-1-6710 81-1364 5-2c-81 Performed P/M as per HNP 6280 on B21-F28A-D and changed oil on B21-F022A-D per MR 1-80-4180 81-3166 5-20-81 Performed leakdown test on SRV air supply ch'eck valves B21-F036A-J 81-3429 5-26-81 Work completed per CBI draw-ing 101 contract 04391 on SRV discharge

.. lines ramsheads supports B21 81-964 5-24-81 Removed and replaced indicat-ed control rod drives 81-1651 5-15-81 Replaced 25 C52-K605 LPRM detector strings and verified they were latched 81-1797 5-23-81 Pulled cables on RPT breaker logic C71-CB3ASB/4ASB per DCRs77-271 and 80-226 81-1800 5-28-81 Terminated RPT breaker logic cables C21-CB3AGB/4ASB per DCRs77-271 and 80-226 81-2190 5-23-81 Pulled cable for primary containment high pressure switch C71-N004 per DCR 79-432 81-2213 5-23-81

- Terminated cable H11-P630-A8043 for primary containment high pressure switch C71-N004 per DCR 79-432 l

(

~.

l 81-1521 5-23-81 Pulled cable to remote shut-down panels (sound powered phone system)

C82-P00162 to complete sound powered portion of DCR 78-201 81-1525 5-28-81 Pulled cable to remote shut,-

down pancis (sound powered phone system)

C82-P00162 to complete sound powered portion of DCR 78-201 81-1565 5-28-81 Replaced magnetic switch; also replaced ASCO solenoid valve on LLRT test boundary E11-F050A

~

81-1567 5-21-81 Hooked up

MOV, motor and
cabic, set up and operated MOV in open and close direc-tion on LLRT test.

boundary valve E11-F015A 81-2536 5-28-81 RHR LPCI injection valve scal-in logic E11-F015A(B) circuitry removed per DCR 80-257 81-2799 5-26-81 Rotated and reinstalled oper-ator on RHR pump suction valve E11-F065B 81-3595 5-24-81 Modified RHR valve snubber assy.

E11-RHR-184 by extend-ing strut 81-3528 5-26-81 Disassembled LLRT test bound-ary valve E21-F010A, lapped

seat, machined
stem, and i

reassembled valve with new packing and gasket 81-3609 5-24-81 Increased strut length and modified core spray snubber assy. E11-CSH-43 81-3610 5-24-81 Increased strut length and

, modified core spray snubber assy. E11-CSH-44 81-1832 5-26-81 Handlapped disc and seat on LLRT test boundary valve E41-0

F046, F012 to obtain 100%

contact r

w-m-

-a

s 81-2828 5-28-81 Changed control switch 527 on suppression pool isol.

valve E41-F051 to a

dcuble pole switch and wired it as per DCR 80-451.

81-3122 5-8-81 Removed bonnet and installed new gasket on CST suction check valve E41-F019 and replaced bonnet 81-3183 5-8-81 Installed blank under pump suction relief valve E41-F020 on 4-28-81, and removed blank and installed new gasket on 5-7-81 81-3250 5-26-81 Installed conduit and supports en HPCI pump discharge valve E41-F006 for ESS-II-3044 and 3074, per DCR 81-16 81-4122 5-25-81 Reinstalled Z41 support for HPCI turbine exh. drain that was removed during outage 81-2079 5-29-81 Installed conduit hangers and conduits 3306A thru

3308A, IMC 3300A and IMC-3305A on RCIC E51 81-2564 5-24-81 Removed starter and bkr.

assemblies and placed in proper frames as directed on RCIC. turbine trip and throt-t1e valve E51-C002.

Control l

and motor leads were not reconnected to power source 81-2670 5-24-81 Disconnected cables from section 11, 11A and recon-nected cables in section 2,

2C in MCC R24-S021 for turbine trip and throttle valve (RCIC) E51-C002 i

81-2827 5-28-81 Changed control switch S25 on

- the HP11-P602 panel in control room for suppession pool isolation valve E51-F002 from a

single pole to a

double pole switch and wired as per DCR 80-452 e

-e

" + - -,

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---w

s 81-3082 5-24-81 Performed necessary wiring changes and relined internal wiring of frame 2C also redlined cable listed for RCIC turbine trip throttle valve E51-C002 81-1961 5-23-81 Installed new seal-in rela ',

s replaced valve control switches and performed all internal wiring per DCR 80-13 for PCIS valve logic Gil-F003,4,19,.20; B31-F019,20; T48-F118A,B, 307,309,318,319, 339,341,103,104,308,320,324, 326, 338, 340;. P70-F00243 81-1962 5-27-81 Terminated cable per DCR 80-13 for PCIs valve logic G11-F003,4,19,20; T48-F307, 308,309,318,319,320,324, and 326 81-1963 5-23-814 Terminated cable per DCR 80-13 for PCIs valve logic G11-F003,4,19,20; T48-F307, 308,309,318,,319,320,324, and 326 81-1982 5-26-81 Disassembled knocker valve drive shaft G31-F056A, disas-sembled roto hammer operates, tightened internal bolts to reduce loose play in operat-or, reassembled

operator, reconnected drive shaft and sct 81-2609 5-24-81 Installed internal
wiring, pilot lights, control switch and misc.

name plates and labeled terminal board for DC switchgear local control panel !!21-P248 81-4299 6-16-81 Replaced RIIR minimum flow motor E11-F007A as per

.9CR 81-151 81-4332 6-10-81 Found overloads

tripped, removed heads and meggered RilR min.

flow motor Ell-

F007A, found to be open and
grounded, removed and w

w v

r mw i

r w

w

replaced

motor, megerred
motor, checked operator on M0'!,

bumped motor for rota-

tica, operated MOV for correct operation and checked running amps 81-4430 6-17-81 Installed new motor on RHR IIx to torus valve E11-F011A and checked valve operation 81-4501 6-10-81 Replaced RHR E11-F028B MOV E11-F028B motor with new motor with brake 81-1564 5-26-81 Replaced gates and
seat, repacked and tongued down LLRT test boundary E21-F031A 81-2569 6-1-81 Disconnected
circuit, moved conduit to E21-F019B, rein-stalled conduit and retermin-ated cabic 81-3338 5-29-81 Performed hydro test on core spray piping Ell-A loop 81-4217 6-1-81 Installed new motor on core l

spray "B"

suction valve E21-F001B; checked operation of limit and torque switches and run valve by motor l

81-2509 5-19-81 Performed hydro as per HNP-6607-1 on HPCI pump suction piping E41-C001 81-3698 6-5-81 Replaced HPCI booster pump discharge press, indic.

E41-C001 with new calibrated one 81-4292 6-17-81 Removed HPCI steam turbine l

drive shaft cooling E41-C001 for overspeed trip test and replaced l

l 81-4322 5-29-81 Removed old 0 rings on oil filter selector handle E41-

' C002 and replaced with new ones 0

9

~~.

81-14 6-4-81 Installed new flange gasket

set, verified RCIC steam inlet drain pot valve E51-F054 repaired with replace-ment parts listed on IMR 01864 81-577 6-15-81 Installed support bracket on RCIC aux oil sump E51-C002 as per DCR 79-141 81-1239 6-1-81 Revised wiring as per DCR 80-360 on turbine trip and throttle valve E51-C002 81-2508 1-81 Performed hydro as per HMP-6907 on RCIC pump suction piping E51-C001 81-3126 5-30-81 Removed bonnet and wire on CST suction check valve E51-F011 and replaced with gasket 81-318?

5-30-81 Removed pump suction relief valve E51-Ff017 ad installed blind flange on pipe, later removed blind flange and replaced relief valve with new gasket 81-3765 6-15-81 Installed new Nyloc set screws in speed sensing gears on RCIC turbine E51-C007; l

also cleaned and reinstalled bearing covers 81-4181 6-17 81 Removed spool piece and installed disconnect on RCIC turbine drive shaft coupling E51-C001 and reinstalled spool piece 81-4230 6-1-81 Found motor to be burned out on core spray min. flow valve E21-F031A and replaced motor meggered and operated valve 81-4289 6-3-81 Removed installed blank and reinstalled old RCIC turbine exhaust rupture disc E51-D001 after performance of hydro

  1. 1-4318 6-2-81 Performed hydro on RCIC turbine steam supply piping o

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81-4333 6-3-81 Performed hydro on RCIC turbine exhaust. piping E51-C002 81-4447 6-9-81 Changes made on RCIC steam sup?ly valve E51-F007 as per Becitel telecopy and DCR 78-201 81-4499 6-3-81 Removed blank from RCIC turbine steam exhaust line nozzle E51-C001 and installed new Flexit.allic gasket 81-4574 6-5-81 Corrected relay binding on RCIC turb exh.vac bkr E51-F105 81-3722 5-28-81 Hydrood G51-F001-4, F014-16 piping and valves 81-4193 6-1-81 Removed existing cable on D/W/ torus temp recorder al rm cable H21-P237-AD051; also pulled new cable and reterm-inated same per DCR 80-439 81-1524 4-1-81 Replaced mechanical snubber B21-X29-1F17-H1 per DCR 80-15 81-2394 5-30-81 Rerouted conduit to scismic accelerometers L51-N002 and N105 and installed hangers per DCR 81-23 80-2110 6-1-81 Replaced cage, seat, and plug on offgas cooler cond SO4 drain valve N62-F030B and lapped 81-464 5-26-81 Fabricated and installed hangers per DCR 80-380 for Unit 1 air compressors P51 81-545 6-1-81 Disconnected torus temporary I

fan R24 from R24-S011 bkr #28 81-2889 5-28-81 Removed local starter R27-l F035 from the torus El-133'

- relocated on el 130 react b1dg pcr DCR 81-16 31-2123 5-28-81 All work complete per CBI dwgs contract 95371 on torus vent headers and downcomers T23

81-2281 6-2-81 Disconnected and reconnected wires and conduit for torus floor drain level switch T45-N002C6D; replaced float on (C) and redlined cables and FT 81-2392 5-30-81 Rerouted conduit to sump level switch T45-N002A:

repulled cables and retermin-ated cables81-952 6-3-81

Removed, then reinstalled j

reactor cavity shield plugs (Bil-shielding) 80-4180 5-26-81 Cleaned MSIV hydraulic cylin-der (B21-F022D) and replaced fluid 81-1267 5-27-81 Performed preventive mainten-ance on main steam relief valves (V21-F013A-H. J-L) 81-1431 5-26-81 Hooked up temporary dry reference leg on low side of reactor vessel wide range icvel indicator transmitter to achieve accurate level indication with RPV head removed 81-1447

-81 Repaired leaking LLRT res-p(B21-sure boundar valves F022A, F028A) y 81-1452 5-27-81 Repaired Icaking LLRT pres-sure boundary valves (B21-F022C) 81-1453 5-23-81 Repaired leaking LLRT pres-l sure boundary valve (B21-l F022B) 81-2483 5-21-81 Removed SRV remshead tee support straps and T-beam 81-2543 5-27-81 Repaired leaking LLRT test boundary valve (B21-F032A) 81-3034 5-29-81 Replaced snubbers B21-FDH-11A, B with new snubbers o

\\e e 81-3191 5-27-81 Installed temporary reactor water 1cvel indicators (BZ1-NO31A) 81-3231 6-4-81 Removed support B21-113-II801 on SRV discharge line (B21-F013K);

rerlaced section of SRV discha.ge line 61-3519 5-24-81 Braced ramsheads' support

, structure (girder-to-girder WF beam) in bay 6; replaced and braced girder-to-girder WF beam in Bay 8 (B21) 81-1697 5-28-81 Repaired hydraulic snubber (B31-SS-B12) 31-2189 5-24-81 Instal ~ed a

vent connection between B31-F019 nd B31-F059 (B31-G001, recirc system) 81-3260 6-4-81 Repaired reactor recirc B

suction low point drain valves (B31-F052B, F051B) 81-4591 6-10-81 Repaired recirc drive temp recorder 81-2502 5-23-81 Performed

)Jdro test on standby '

,uid control (C41) 1

, 81-2834 6-2-81 Mounted area process radia-tion monitors D11-N003A and B 81-2835 6-2-81 Fabricated and installed conduit supports and conduit for D11-N003A/B 81-2836 6-2-81 Pulled cables for area radia-tion monitors (D11-N003A/B)81-342 5-31-81 Replaced RilR inboard isola-tion valve motor with origin-al motor 81-1450 5-29-81 Repaired valve E11-F024A in LLRT pressure boundary 81-2008 5-31-81 Repaired RilR service water pump seal leak (E11-C001A) o

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81-2544 6-1-81 Repaired leaking LLRT test boundary valve (E11-F029) 81-2800 6-1-81 Disconnected cable and condu-it associated with RHR torus suction vale E11-F065B 81-3161 5-30-81 Removed RilR SRV and placed a flange on the RHR pipe to allow hydro test of RCIC; replaced SRV upon completion of hydro 81-3255 5-27-81 Installed modified RHR line snubber support assembly for support E11-RilR-H184 Repaired RHR suction 81-3328 5-27-01 valve E11-F004B) pump 81-3346 5-29-81 Closed RHR relief valve (E11-F025A) for performance of RHR

hydro, opened after successful completion of hydro 81-3453 5-31-81 Repaired sea water leak on RHR service water pump (Ell-C001C) 81-3454 5-31-81 Repaired seal water leak on RilR service water pump (Ell-C001A) 81-3479 5-27-81 Repaired RHR relief valve (E11-F055B) 81-3608 5-27-891 Modified RHR snubber support assembly (E11-RHR-H322) 87-3720 5-28-81 Repaired conduit on limit swite.bes and solenoid valve (E11-F050B) 81-4047 5-27-81 Repaired leaking LLRT test boundary valve (E11-F027A) 81-4056 5-27-81 Repaired leaking LLRT test boundary valve (E11-F011A) 81-3176 5-30-81 Replaced 25%

safety related snubbers with new or rebuilt numbers (L31) o

81-1590 5-25-81 Replaced the existing WSCo.

mechanical snubbers and accessories with new equip-ment (L35) 81-1592 5-25-81 Replaced the existing WSCo.

mechanical snubbers and accessories with new equip-ment (L35) 81-l594 5-21-81 Replaced mechanical snubber G31-SM-6 and clamps per DCR 80-15 (G31.)

81-4271 5-30-81 Installed new pipe clamp on Yarway column of mechanical snubber (B21-X29-1F1'-H6,7) 81-1858 5-27-81 Repaired leaking and dry snubbers (N11-MSH-14) 81-2026 5-27-81 Installed hangers on MSR high level trip switch piping (N38-B001A, B, C, D) 81-5792 4-2-81 Routed piping from sprinkler valve f or - mechanical air supervision of sprinkler system in RPS rooms and vertical cabicway (PS2) 81-3030 5-27-81 Relocated circuit breakers in R22-S016 (125/250 VDC switch-gear) 81-2611 5-27-81 Relocated frames in R24-S021 (250 VDC essential MCC) 81-2749 5-27-81 Installed conduits and conduit supports to R24-S021A (MCC) 81-3178 5-28-81 Pulled and terminated cabloc to R24-S021A (250 VDC essen-tial MCC) 81-2898 5-21-81 Disconnected and removed cables R24-S022-E58-C07,

C07C, E56-M07,
M07A, M07B, and R24-S022-C24 81-2901 5-26-81 Pulled and terminated cables to local starter (R27-S035) o

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81-2912 5-28-81 Installed new conduit to local starter (R27-S035) 81-2790 5-27-81 Replaced damaged cab'Le tray supports on tray R33-TAD 7-07 81-3468 5-27-81 Removed existing type vital AC batteries and rack and installed new batteries and rack (R42-S008) 81-3827 5-28-81 Removed diesel generator 1C batteries.and replaced with new batteries (R42-S001) 81-3412 5-28-81 Installed support on beam in NE diagonal (T21-B2)81-519 5-26-81 Opened doors on sacrificial shield and removed insulation from nozzles

IN1B, IN2B, IN2E, IN2H, IN2K (T23) 81-2524 5-26-81 Rerouted floor drain which interferes with torus brace location 81-1410 5-21-81 Reraoved conbuit supports and installed temporary supports in torus room 81-1704 5-21-81 Fabricated cad installed conduit and conduit supports for drywell torus vent exhaust valve logic /RPT logic 81-2102 5-27-81 Pulled cable for drywell/ tor-us isolation valves and purge

'an 81-2103 5-22-81 Performed internal wiring for drywell/ torus isolation valves and purge fan 81-2104 5-27-81 Terminated cables for drytell/ torus isolation valves and purge fan 81-2396 5-26-81 Rerouted conduit to torus water temperature element 81-2477 5-28-81 Mounted and labeled

relays, switches and terminal strips o

for dw/ torus vent exhaust valves

81-2505 5-27-81 Installed internal wiring for DW/ torus vent exhaust VM ves 81-2584 5-28-81 Pulled cables for DW/ torus vent exhaust valve 81-3264 5-28-81 Terminated external wiring for DW/ torus vent exhaust valve 81-5351 5-27-81 Replaced exising 3/4" scal-tite with 1

1/2 sealtite within panel enclosures for DW/ torus exhaust vent 81-3352 5-27-81 Installed

" tee" condulet at lower limit switch on valves T48-F334A(B) and T48-F335A(B) 81-3600 5-28-81 Repaired valve ' leaking caus-ing vacuum break from torus to reactor building (T48-F311) 81-4151 5-27-81 Replaced broker ficx-conduit on solenoid and both limit switches on primary contain-ment isolati.on valve 81-4270 5-28-81 Replaced Llower units and installed more sensitive circuit boards on main control room chlorine monitors81-378 4-7-61 Fabricated and installed hanger H69 for fire protection 81-802 4-7-81 Fabricated and installed nanger H34 in cable spread Unit 2 (Z43)81-468 4-7-81 Fabricated and installed hanger H96 for fire protection 81-434 4-7-81 Fabricated and installed hangers for fire protection in Unit 1 cabic spread 81-435 4-7-81 Febricated and installed hangers for fire protection in Unit 1 cabic spread 81-329 4-7-81 Fahricated and installed hangers for fire protection in Unit 1 cable spread

~..81-299 4-7-81 Fabricated and installed hangers for fire protection in Unit 1 cabic spread 81-2393 6-1-81 Repulled cable and retermin-ated cable on conduit to sump level switch T45-N002D per DCR 81-23 81-3194 6-3-81 Disconnected cables and removed conduit straps to move

conduit, repaired damaged conduit and cabic; replaced cables and conduit to sump level switch T45-N002B after torus work 81-1275 5-29-81 Installed new L6N recorder and calibrated to 0-3000F for drywell and torus temper-ature recorder T47-R611 81-580 5-21-81 Removed permanent and tempor-ary torus level lines' supports T48; lines will be rerouted per DCR 77-238 81-1835 5-31-81 Disconnected" wiring and conduit to torus water temperature RTDs T48-N009AGB and reconnected wiring and conduit after torus modifica-tions complete 31-1929 5-27-81 Torus to drywell vacuum breakers renoved and rein-stalled atend of outage 81-2395 5-30-81 Rerouted ESS-I-3617 conduit to torus water temp element T48-N072, repulled cable and reterminated cable 81-2523 6-1-81 Installed conduits and supports on DW/ torus vent exhaust valves per DCR-l l

79-149, R1 i

81-2525 6-2-81 Disconnected

cable, rerouted conduit to vac.

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air supply T48 and pulled new l

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81-4232 6-3-81 Installed old supports for torus level lines T48 which feed T48-N121AGB and E41-N015AGB 81-4233 5-30-81 Rerouted conduit to torus temp TRD T48-N009B and intalled supports and repulled new cable 81-4304 6-2-81 Disassembled LLRT vacuum breaker T48-F310

valve, cleaned seat, replaced T-ring and 0-rings and reassembled valve 81-4320 5-28-81 Removed old magnets and hydraulic cylinders and replaced with new ones on torus vac. breaker T48-F328ASB 81-4334 6-1-81 Reinstalled shield plug on drywell penetration X41-Unit 1 T48 81-147 4-7-81 Repaired hangers for five protection in Unit 1 and Unit 2 cabic spread 81-881 4-7-81 Fabricated and installed hangers for fire protection in Units 1 and 2 cable spread O

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