ML20050B185

Monthly Operating Rept for Jan 1982

ML20050B185
Person / Time
Site:	Cook
Issue date:	01/31/1982
From:	Might A INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML20050B178	List: ML20050B177 ML20050B185
References
NUDOCS 8204050079
Download: ML20050B185 (9)

Text

_____

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1 OPER.tT'NC DATA P.E?0RT

.s.

DCC'CET NO. 50-316 CAT

_J a m a rv 31, 1982 4

• 0ht COSL'LETED EY 616 465-5901 TEL2? HONE O?mT!NG S ATUS Notes Donald C. Cook P1 ant 2

2. Uni Nasse:

January 1982

2. Reporting ?edod:

3391

3. UWThe: 1?ower(5tW:):

1133

4. Nameolate Ruin;(Cro:s 51We):

1100

5. Destp Se=d=1 R::in;(Nec 31We):

~

6.v-d ~ De7end:hls capsci:f (Gross 51We):.3.I I 8 I082 T. Si=W-en De:end:ble C:::=i:7 (Net 31We):

S. If Chur;es Oc=r in Capaci:y R::ings (Iter..s Nu:nbar 3 Through 7) Sine: Lu: Repor:. Give R:: sons:

9. PowerLee!To Which Re:d. d.If Any (N : 31We):

10. Re: sons For R=::-:*'or.s.If.uy:

This 5f onth Yr.4o-Dace Cu=u!:tive 744 7aa 35.808

11. Hours In Repor-ing P:ded

/J6.I 736.1 24,/61.1

12. Number Cf Hou:s R=:=or Was Cd:i:.1 0

0 0

13. Re:=or Resene Shu::iown Ho :s 733.1 733.1 23.954.1

14. Ho=s Genen:or Cn.Lin, 0

0 0

15. Uni: R.-se:ve 5"nutdowu Ect:=

2.295.944 2,295.944 76.356,765

16. Cross Thc=:1 Ene::y Cen==ted (31W1!)

750,110 750,110 24.457.910

17. Cross Ele =d=:1 E::er;y Gen =:ed G.tWH) 722.724 722,724 23,566.865

13. Net Ele =d=1 En=;y Cenen: d C.iWII) 48.5 98.5 71.9

19. Unir Se: Tic: ?:=or QR.6 98.5 71.9

23. Ucie Ar:IlabilI:7 =c:or F

89.8 89.8 67.2

21. Unit C:psci:y ;":::or (US ::: >!DC Nec) 88.3 88.3 66.4 l

21. Unit Caosci:y F:::or (Usin: 0 ER Net) 1.5 1.S 13.8

23. Unit. core:d Cu::ge Rat, OL Sh:tdowns Scheduled Over Nex: 5 Ston:hs IType.D:te.:nd Dc:::fon of I::h1:

I I

5. If Shu: Down At End Of Report ? Hod. Esti==:ed 3:te o(star:no:.

l

. 25. L~ nits In Tes: S:::us (Pnor to Ce=:=ercial C;treisnt:

Fore =st Achieved INITIA L CRIT;CA UTY INITIAL ELI TRIO -"Y CO.~.t.' *.Ey.C;A L ?IT.A 7'CN CI 8204050079 820212 PDR ADOCK 05000316 R

pop i

AVERAGE DAELY UN1T POWER LEVEL DOCKET NO. 50-216 UNIT 2

DATE January 31, 1982 COMPL:.TED BY Ann Might TELEPHONE 616-465-5901 MONTH January, 1982 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-Net)

(MWe-Net) 1 936 17 335 2

650 18 983 3

1024 19 1088 l

4 1067 20 1088 5

1065 21 1088 6

749 22 1089 7

662 23 1088 8

1061 24 1087 9

1062 25 1084 10 1056 25 1083 11 1049 27 1084 12 1067 23 1016 13 1067 29 508 14 1069 30 946 15 1070 31 1081 16 762 INSTRUCTIONS On this format list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

DOCKET NO. 50-316 UNITSilUIDOWNS AND POWER REDUCTIONS UNITNAME D.C. Cook - Unit 2 DATE 2-12-82 January, 1982 COMPLETED liY B.A. Svensson REl'OIIT MON ill lEl.LPilONE (616) 465-5901 PAGE 1 of 2

.3 p 3

)E t icensee pr, Cause & C.;nective No.

Date g,

5@

j! s 5 Event g?

p Action to g'

Prevent Recussence jE 5

j ;p, g Repost #

vO H

6 104 820101 F

0 B

4 N.A.

ZZ ZZZZZZ Reactor power reduced to 56% to re-move the West main feed pump turbine from service to check feed pump tur-bine condenser for tube leaks.

One

~

leaking tube was found and plugged.

Reactor power returned to 100% on 820103.

105 820105 F

0 A

4 N.A.

ZZ ZZZZZZ Reactor power reduced to 56% to re-move the West main feed pump from service to repair weld leak in the feed pump suction strainer drain line.

Reactor power was returned to 100% on 820108.

106 820116 F

10.9 H

3 N.A.

ZZ ZZZZZZ Unit tripped from a turbine trip.

The exact cause has not been deter-mined.

It appears that the cause was a closed valve in the impulse line to the' stator cooling water low-flow in-strument combined with low ambient tempera tures.

I 2

3 4

f: l'os ceil Reason:

Methott:

Exhibit G. Instincsiims S: St heiluteil A Equipmen Failme(I.xplaint I Manual for Psepasasiim of Data is Maintenance or Test 2 Manual Scram.

Ensey Sheels fm I.icensee C Refueling 3 Automatic Scram.

Event Repose (l.ERI File INllRIE D Regulaimy Ressiiction 4 Other (Explain) 0161)

E-Opesato l'asining & ljccuse lixamination F Ailministrative 5

G Operational Enos IExplaint Exlubit I - Same Somce 19/17) lI Other ilisplain)

UNIT SHUTDOWNS AND POWER REDUCTIONS INSTRUCTIONS This report should des:nbe a!! plant shutdowns dunng the

n 2::ordance with the table appearmg on the report form.

report penod. in addit:on. It should be the source of explan.

If:stegory 4 must be used. supply bnef:omments.

etton of sign:Geant dips m aserage power levels. Each simi.

fi: ant redu:non m power level (greater than 20% redu: tion LICENSEE EVENT REPORT =. Reference the applicaele m average daily power level for the preceding 24 hnurs) reportable oc:urrence pertaming to the outage or power should be noted, even thou:h a unit may not have been reduction. Enter the n,rst tour parts (event year. sequennal snut down completely!. For'su:h reductions m power level.

report number, occurrence ecde and report type) of the 6ve the duration should ce listed as zero, the method of reduenon part designation as described in item 17 of Instru:nons tor should be listed as 4 (Other), and the Cause and Corre:uve Preparanon of Data Entry Sheets for Licenser Event Report Acuen to Prevent Re:urrence column should explain. The (LER) File (NUREG.0161). Th:s information may not be Cause and Correcuve Action to Prevent Recurrence column immediately evident for au such shutdowns. of course, since should be used to provide any needed explanation to fully turther mvestigation may be required to ascertam whether or desenbe the :ircumstances of the outage or power reduction.

not a reportable occurrence was involved.) If the outage or power reduction wtli not result in a reportable oc:urrence.

NUNIBER. This column should indi=te the sequentral num.

the positive indication of this lack of correlation should be ber asugned to each shutdown orsignt$ cant redu:non m power noted as not applicable (N/A).

for that calendar year. When a shutdown or signtiicant power SYSTE51 CODE. The system in which the outage or power reduction begms m one report period and ends m anotner, an entry snould be made for both report penods to be sure reduction ongmated should be noted by the two digit code of

.xhi.. G. Instrucuens for Preparation of Data Entry Sheets oit c

all shutdowns or sig:un: ant power reductions are reported.

Until a unit has ach2eved its first power generation, no num.

f r L2censee Eunt Repon (LER) File (NUREG.0161).

ber should be assigned to each entry.

Systems that do not Gt any ex:stmg code should be designa.

ted XX. The code ZZ should be used for those events where DATE. This column should mdicate the date of the start a system is not applicable.

of each shutdown or signincant power redu:non. Report as year. month, and day. August 14.1977 would be reported CONIPONENT CODE. Select the most appropriate component as 770S14. When a shutdown or ugntficant power reducuen from Exhibit !. Instruenons for Preparanon of Data Ent:3 begmsin one report pened and ends m another, an entry should Sheets for Licensee Event Report (LER) File (NUREG.0161).

be made for both report penods to be sure all shutdowns usmg the following entienz:

or ugruficant power reducuens are reported.

TYPE. Use "F" or "S" to indicate either "For:ed" or " Sche.

duled." respectively, for each shutdown or significant power B.

If not a :omponent failure, use the related component:

reducuon. Forced shutdowns include those required to be e.g. wrong valve operated through error: list valve as mittated by no later than the weekend following discovery component.

of an off. normal condition. It is re:ognized that some judg.

ment is required m categonzmg shutdowns in this way. In C.

If a cham of failures occurs, the first component to mai.

general, a forced shutdown is one that would not have been function should be listed. The sequence of events.melud.

completed in the absence of the condition for which corrective ing the other components which fail, should be desenbed acuan was taken.

under the Cause and Corrective Acuan to Prevent Recur.

I rence column.

DURATION. Self. explanatory. When a shutdown extends Components that do not fit any existmg : ode should be de.

I beyond the end or a report penod. count only the time to the s:gnated XXXXXX. The code 777777 should be used for end or the report penod and pick up the ensumg down ume events where a component designation is not applicaele.

I m the foUowing recort penods. Report durauon of outages rounded to the nearest tenth of an hour to fa::litate summation.

CAUSE & CORRECTIVE ACTION TO PREVE.NT RECUR.

l The sum of the total outage hours plus the hours the genera.

RENCE. Use the column m a narrative fashion to amplify or tor was on line should equal the gross hours in the reportmg explan the circumstances of the shutdown or power reduction.

pe nod.

The column should include the spec:nc cause for each shut.

down or sigm0: ant power reduction and the immediate and REASON.. Categorize b3 letter designation in accordance gg g g g g g

with the table apoearmg on the report form. If :stegory H ate. This column'should also be used for a desenption of the must be used, suopi> brtet eumments.

maior safety-related corre:uve maintenance performed dunna METHOD OF SHUTTING DOWN THE REACTOR OR the outage or power recu tion meluding an identifiestion of REDUCING POWER.

Categonze ey numner denznaton tne ;nt: cal path actmty and a report of any smgle release et r:dioactmty or smgle radiation exoosure spee 6eally asscer.

1%te that th:s differs f rom the Edison Electne insature sted with the outage which accounts for more than 10 percent t EE!) de6 muons of " Forced Parnd Outace" and " Sche, of the 2ilowaole annual values.

auied Partul Outag For rt.se tenn. EE! uses a shange at For long textual recorts eentmue narrative on secarate paper 1

30 MW as the creak romt. For larger power resetors.30 5tw

.tnJ reteren.: the shutdown or power reduonon foi tm, is im SmJil J shange to wJriant e\\piananoH.

narrative.

A !?

DOCKETNO. 50-316 UNITSiluTDOWNS AND POWER REDUCTIONS UNIT N AME D.C. Cook - Unit 2 DATE 2-12-82 COMPLE1ED ilY B.A. Svensson REPORT MON Hi January, 1982 1ELEPilONE (616) 465-5901 PAGE_

2 of 2 e.

,5, 3 Elcensee

,E T, Causc & Courective o

i& s.

DJee y

f h

l{VCnl

]

Actiott to g

H o3 Repull #

io O U

Prevent Recmrence c5 107 820128 F

0 A

4 N.A.

ZZ ZZZZZZ Reactor power reduced to 42% due to failure of the North condensate booster pump motor and high vibration on the middle condensate booster pump motor. The middle pump motor was balanced and reactor power re-turned to 100% on 820130.

I 2

3 4

E: Foiced Reason:

Methml:

Eshibit G - Instinctiims S: Sc heilnical A.Eignipmens Failme(Explain) 1-Manual for Preparasion of Data ll-Maintenance ui Test 2 Manual Scram.

lintiy Sheets fin IJcensee C Refueling 3 Automatic Scram.

Event Repose ll.l!R) File INURI:G-D Regulatomy Restsicilon 4-Othes (Explain) 0161)

E-Opesato l'eaining & Escense lixamination F Ailministrative 5

G Operational Enos liixplain) lishibis 1 S. ant Somce 19/17)

II Other (Explain)

UNIT SHUTDOWNS AND POWER REDUCTIONS INSTRUCTIONS This report should des:nbc 211 plant shute; owns durmg the m 20:ordan:e with the table appearing on the report form.

report penod. In addition. It should be the source of explan-If:stegory 4 must be used. supply br:eicomments.

ation of sigmficant dips m sversge power leveis. Each simi-6: ant redu:non tn power level (greater than 20% redu: tion LtCENSEE EVENT REPORT =. Reference the apphesole m sverage daily power level for the preceding 24 hnurs) repons' le o=urrence pertsmm; to the outsge or power e

should ce noted, even thou:h the unit may not have been reduction. Enter the first four parts (event year sequennal

~

shut down completely!. For such reductions in power level, rep rt numoer. occurrence code and report type) of the five the dursuon shot.id be listed as zero, the method of reducten part designation as described m item 17 of Instruccons for should be listed as 4 (Other), and the Cause and Correcuve Preparation of Data Entry Sheets for Licenses Event Report Acuan to Prevent Recurrence column should explain. The (LER) File (NUREG-0161). Tims mformation may not be Cause and Correcuve Acuan to Prevent Recurrence column tmmediately evident for all such shutdowns, of course, smce should be used to provide any needed explananon to fully runhn mvesugation may be required to ascertam whether ur desenbe the :ircumstances of the outage or power reduction.

not a reportable occurrence was involvec.) If the outage or power reduction will not result in a reportable occurrence.

NUMBER. This column should indi::te the sequential num.

the positive mdiestion of this lack of correlation should be ber asugned to each snutdown or sigmfic. It reduction m power noted as not applicable (N/A).

for that calendar yest. When a shutdown or sigmilcant power SYSTEM CODE. The system in which the cutage or power reduction begms m one report period and ends m another' reduction ongmated sh'ould be noted by the tw'o digit code of an entry should be made for both report penods to be sure al shutdowns or sigmil:2nt power reducuons are reported.

Exfubit G Instructions for Preparation of Data Entry Sheets Until a unit has achieved its first power generation, no num-for Licensee Event Report (LER) File (NUREG 0161).

ber should be assigned to each entry.

Systems that do not fit any existmg code should be dengna-ted XX. The code ZZ should be used for those events where DATE. This column should indicate the date of the start a system is not applicable.

of each shutdown or sigmncant power reducuon. Report ss year. month, and day. August 14.1977 would be reported COMPONENT CGDE. Select the most appropnate component as 770814 When a shutdown or ngmficant power reducuan from Exhibit ! Instructions for Preparanon of Data Entry begms m one report penod and ends m another, an entry should Sheets for Licensee Event Report (LER) File (NUREG 0161).

be made for both report periods to be sure all shutdowns usmg the following entiena:

or ugmficant power reducuons are reported.

TYPE. Use "F" or "S" to indicate either " Forced" or " Sche-duled." respectively, for each shutdown or significant power B.

If not a component failure use the related component:

reductan. Forced shutdowns include those required to be e.g.. wrong valve operated through error: list valve as mitiated by no later than the weekend following discovery component.

of an off. normal condition. It is recognized that some judg.

ment is reqmred in estegonzmg shutdowns in this way. In C.

If a chain of failures occurs, the first component to mal-general, a forced shutdown is one that would not have been function should be listed. The sequence of events. includ-completed in the absence of the condition for which correenve ing the other components which fail, should be described action was taken.

under the Cause and Corrective Action to Prevent Recur-rence column.

DURATION. Self-explanatory. When a shutdown extends Components that do not fit any ex2stmg code should be de-beyond the er.d at a report penod, count only the time to the signated XXXXXX. The code 777777 should be used for end or the report penod and pick up the ensutng down time events where a component deugnation is not applicable.

m the following recort penods. Report duration of outages rounded to the nearest tenth of an hour to factlitate summation.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR.

The sum of the total outage hours plus the hours the genera-RENCE. Use the column m a narrative fashion to amplify or tor wu on line should equal the gross hours in the reportmg expiran the circumstances of the shutdown or power reduction.

penod.

The column should include the specific cause for each shut-down or sigmilcant power reducuon and the immediate and REASON. C4tegonze 53

. tter designation in accordance se contemplated long term correcuve acuon taken, if appropn-with the table appearmte on the report form. If :stegory H ate. This column should also be used for a desenption of the must be used, supply bnet eumments' maior safety.related corre:nve mamtenance performed dunna the outage or power reducucn including an identifiestion of METHOD OF SHUTTING DOwN THE REACTOR OR REDUCING POWER.

Categonze ey number deuznsuun the ;nuesi path aetmty and a report of any smgle release et radioactmty or imgle radtsuon exoosure speatiestly associ.

l% e that this differs f rom the Edison Electne Insutute ated wnh the outage which accounts for more than 10 percent IEEll detimtions of " Forced Parnal Outage" and " Sche, of the allowsole annual values.

culed Partial Outap ' For these tenn>. FE! uses a,.hange a:

For long textual recons continue narratrve on secarste paper 10 MW as the creak pomt. For larger power reseters. 30 MW and referen e tne snutdown or power redu uon nu un,

s to. > mall a nange to war ant espianailoo.

narrative.

ppe

Docket flo.: 50-316 Unit flame:

D. C. Cook Unit #2 Completed By:

C. E. Murphy Telephone:

(616) 465-5901 Cate: February 8, 1982 Pcge:

1 of 2 M0flTHLY OPERATIrlG ACTIVITIES - JAflUARY, 1982 Highlights:

The Unit entered this reporting period operating at 100% power. At 0656 hours0.00759 days <br />0.182 hours <br />0.00108 weeks <br />2.49608e-4 months <br />, on Friday, January 1, a reduction in power was started to remove the West Main Feed Pump from service to make repairs to a suspected leak in its condenser.

The unit was at 56% power by 0510 on Saturday, January 2.

The West Main Feed Pump was removed from service and one condenser tube was found to be leaking. After the leaking condenser tube was plugged a unit power increase was started at 1033 hours0.012 days <br />0.287 hours <br />0.00171 weeks <br />3.930565e-4 months <br /> on Saturday, January 2, and the unit was at 100% power at 0855 on Sunday, January 3.

At 2243 hours0.026 days <br />0.623 hours <br />0.00371 weeks <br />8.534615e-4 months <br /> on Tuesday, January 5, the unit was again started down in power to remove the West Main Feed Pump from service to repair a weld leak in the feed pump suction strainer drain line. The unit was at 56% power by 2030 hours0.0235 days <br />0.564 hours <br />0.00336 weeks <br />7.72415e-4 months <br /> on January 6.

The necessary repairs were completed on the West Main Feed Pump Suction Strainer and a power increase was commenced at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> on January 7.

The unit was returned to 100% power at 0125 hours0.00145 days <br />0.0347 hours <br />2.066799e-4 weeks <br />4.75625e-5 months <br /> on January 8.

At 1753 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.670165e-4 months <br /> on January 8, botn Essential Service Water trains were declared inoperable due to a missed 18 month surveillance on the Component Colling Water Heat Exchanger Outlet Valves. A power reduction was started to comply with the requirements in Technical Specifications.

One of the CCW valves was tested satisfactorily at 1837 hours0.0213 days <br />0.51 hours <br />0.00304 weeks <br />6.989785e-4 months <br /> and the power reduction was stopped. The unit was returned to 100% power at 1847 hours0.0214 days <br />0.513 hours <br />0.00305 weeks <br />7.027835e-4 months <br />.

At 1336 hours0.0155 days <br />0.371 hours <br />0.00221 weeks <br />5.08348e-4 months <br /> on January 10, the condenser de-icing outlet temperature 0

limit of 56 F was reached and power was reduced several times by 2 to 4%

to maintain this temperature within limits.

Some difficulty was encountered in getting out of the ce-icing mode due to the problems with circulating water discharge valves. The unit was returned to 100% power at 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br /> on January 11.

On January 16, at 1717 hours0.0199 days <br />0.477 hours <br />0.00284 weeks <br />6.533185e-4 months <br />, the unit tripped from an unknown cause.

Following the unit trip the dose equivalent I-131 spiked to 2.04 mci /gm which exceeded the T/S limit of 1.0 mci /gm.

This necessitated declaring an " Unusual Event", which was secured at 0740 hours0.00856 days <br />0.206 hours <br />0.00122 weeks <br />2.8157e-4 months <br /> on January 17. The reactor was taken critical at 0112 hours0.0013 days <br />0.0311 hours <br />1.851852e-4 weeks <br />4.2616e-5 months <br /> on January 17, the unit paralleled with the system at 0412 and 100% power was achieved at 1230 on January 18.

At 1910 hours0.0221 days <br />0.531 hours <br />0.00316 weeks <br />7.26755e-4 months <br /> on January 28, a power reduction was commenced on the unit due to high vibration on the Middle Condenser Booster pump. At 0648 hours0.0075 days <br />0.18 hours <br />0.00107 weeks <br />2.46564e-4 months <br /> on January 29, the power was leveled off at 42% and repairs were started J

l Docket No.:

50-316 Unit Name:

D. C. Cook Unit 02 Completed By:

C. E. Murphy Telephone:

(616) 465-5901 Date:

February 8,1982 Page:

2 of 2 Highlights:

(continued) on the Middle Booster pump. At 1430 hours0.0166 days <br />0.397 hours <br />0.00236 weeks <br />5.44115e-4 months <br /> on January 29, the balancing of the middle pump was completed and power was increased to 100% by 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br /> on January 30.

Total electrical generation for this month' was 750,110 mwh.

Summary:

01-17 The No. 3 Steam Generator Flow Channel MFC-131 was inoperable for a 33.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> period for calibration.

01-19 The West Containment Spray pump was inoperable for a 47 hour5.439815e-4 days <br />0.0131 hours <br />7.771164e-5 weeks <br />1.78835e-5 months <br /> period to repair a cracked weld in the pump suction piping.

01-21 R-15 (Condenser Air Ejector Monitor) was inoperable for a 1.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> period to replace the detector.

01-22 The West Component Cooling Water Train was inoperable for a 35 hour4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br /> period for repairs to CM0-420 and CMO-429.

R-33 (Gland Seal Exhauster Monitor) was inoperable for a 7 hour8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> period due to a stuck check source.

01-27 The No. 3 Boric Acid Transfer Pump was inoperable for a 2.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> period to unplug a pressure gauge line.

01-30 The No. 3 Steam Generator Flow Channel I was inoperable for a 20.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> period due to instrument malfunction.

01-31 The SG-21 (Circulating Water Temperature Recorder) was inoperable for a 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> period due to skipping points.

1 e

DOCKET N0.

50 - 316 UNIT NAME D. C. Cook - Unit No. 2 DATE 2-12-82 COMPLETED BY B. A. Svensson TELEPHONE (616) 465-5901 PAGE 1 of 1 MAJOR SAFETY-RELATED MAINTENANCE JANUARY, 1982 M-1 The air line to the upper containment volume airlock door (for testing the seals) was leaking at a fitting. Cut the line, rethreaded the line, installed threaded line and rewelded. Had necessary NDE performed.

M-2 The west CCW heat exchanger outlet valve, CM0-420, would not close. The valve stem was binding. Machined the valve housing cover to provide sufficient clearance. Had the valve tested.

M-3 The west CTS pump suction strainer had a weld leak. Had NDE (PT, UT and RT) performed to determine extent of problem. A 6" circumferential crack was indicated.

Ground out the affected portion of the weld and rewelded.

Had necessary NDE performed and completed a hydrostatic test.

A " boat" sample of the cracked area was sent out for lab analysis.

M-4 The west RHR heat exchanger CCW outlet valve, CM0-429, would not function properly.

The valve was binding.

The butterfly valve was replaced, tested and returned to service.

C&I-l Channel IV steam pressure indicator (516A) for No. 21 Steam Generator was indicating 29 PSI lower than the other two channels. The loop was recalibrated and returned to service.

C&I-2 MFC-131, Steam Generator No. 3 protection set steam flow did not provide i

indication at 2.5% reactor power. The protection set bistables associated with MFC-131 were placed in the trip mode. The transmitter's output sig-nal was monitored for a 30 hour3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> period. During the monitoring period the reference legs appeared to have refilled and normal signal levels re-turned. The output signals were verified and the channel's bistables were returned to normal.

C&I-3 Circ.ulating Water Pump No. 23 would trip following 11 minutes of operation.

Relay 5183 RLY420 (IAC66A1 A) was tested and found to actuate with a test current of 4.5 amps. The relay was recalibrated to the correct value of 5.5 amps.

C&I-4 Heat Tracing Circuit 235. Boron Injection Tank (BIT) inlet piping, alarm sensing bulb was found detached from the piping. The bulb was relocated and mounted properly and the pipe reinsulated.

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