ML17317B334
| ML17317B334 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 07/05/1979 |
| From: | Gillett W INDIANA MICHIGAN POWER CO. |
| To: | |
| Shared Package | |
| ML17317B332 | List: |
| References | |
| MOR-790630, NUDOCS 7907200321 | |
| Download: ML17317B334 (8) | |
Text
AVERAGE DEWILY U;tITPOWER I VEL DOCK:-T NO.
50-315 DAT""
COMPLETED BY 7
t ~&HOiNE 7/5/79 616-465-5901 June 1979 DAY AVERAGEDAILYPOWe~ LEVEL (MWe.iver)
I 0
0 DAY AVERAGE DAILYPOWER LEVEL (MWe..(et) 0 0
10 13 15 16 0
pi 0
0 0
0 0
0 0
0 0
0 0
19 NQ
')5 26 27
')9 30 31 0
0 0
0 0
0 0
0 0
0 0
tiVSTRU~iONS Qn this forntat. Iis: th ave."
~t daily unit pnw
. ieve! tn M~t'e"~et for each day in the r our;:na:nonth. Ci>t'noute iu'ne near si whole rn 3awatt.
l (i)'7 I )
OPERATING DATAREPORT DOCKET aNQ.
OAYE COWPLEYED EY W.. 1VUMBER.
This column should indicate the sequential num-ber assigned to each shutdown or significant reduction in power for that calendar year.
When a shutdown or significant power reduction begins in one report period and ends in another, an entry should be made for both report periods to be sure all shutdowns or significant power reductions are reported.
Until a unit has achieved its first power generation, no num-ber should be assigned to each entry.
DATE.
This column should indicate the date of the start of each shutdown or signiiicant power reduction.
Report as year. month. and day.
Auaust i4. 1977 would be reported as 770814.
When a shutdown or significant power reduction begins in one report period and ends in another, an entry should be made for both report periods to be sure all shutdowns or signiticant power reductions are reported.
TYPE.
Use "F" or "S" to indicate either "Forced" or "Sche-duled," respectively, for each shutdown or significant power reduction.
Forced shutdowns include those required to be initiated by no later than the weekend following discovery of an oif-normal condition.
It is recognized that some judg-ment is required in categorizing shutdowns in this way.
In general.
a forced shutdown is one that would not have been completed in the absence of the condition for which corrective action was taken.
DURATION.
Seifwxplanatory.
When a shutdown extends beyond the end of a report period, count only the time to the end ot the report period and pick up the ensuing down time in the following report periods.
Report duratil>n of outages rounded to the nearest tenth ofan hour to faciTitate summation.
The sum of the total outage hours plus the hours the genera-tor was on line should equal the gross hours in the reporting period.
REASON.
Cate>tt>rize by letter designation in accordance with the table appearing on the report form. Ifcategory H must be used. supply briei'comments.
METHOD OF SHUTTING DOWN THE REACTOR OR REDUCING POWER.
Categorize by number designation INole that this differs i'rom the Edison Electric Institute IEEI) definitions of -Forced Partial Outage" and
-Sche.
duled Partial Outage."
F>>r these tern>>. I;FI uses a el>ange ot'0 41W as the break p>>int.
F>>r larger power rea<<tots.30 41W is t>>
> snlall a change t>> warraili cxplanaiii>>l.
in accordance with the table appearing on the report form.
Ifcategory 4 must be used, supply brief comments.
LICENSEE EVENT REPORT. Reference the applicable reportable occurrence pertaining to the outage or power reduction.
Enter the first four parts (event year, sequential report number, occurrence code and report type) of the five part designation as described in Item 17 of Instructions for Preparation of Data Entry Sheets for Licensee Event Report (LER) File (NUREG4161).
This information may not be immediately evident for all such shutdowns, of course, since further investigation may be required to asc rtain whether or not a reportable occurrence was involved.) Ifthe outage or power reduction will not result in a reportable occurrence.
the positive indication of this lack of correlation should be noted as not applicable (N/A).
SYSTEM CODE.
The system in which the outage or power reduction originated should be noted by the two digit code of Exhibit G - Instructions for Preparation of Data Entry Sheets for Licensee Event Report (LER) File (NUREG4161).
Systems that do not fit any existing code should be designa-ted XX. The code ZZ should be used for those events where a system is not applicable.
COMPONEiVT CODE.
Select the most appropriate component I'rom Exhibit I
~ Instructions for Preparation of Data Entry Sheets for Licensee Event Report (LER) File (NUREG4161).
using the followingcritieria:
A. Ifa component failed,use the component directly involved.
B.
If not a component failure, use the related component:
e.g.. wrong valve operated through error: list valve as component.
C.
If a chain of failures occurs, the first component to mai.
function should be listed. The sequence ofevents. includ-ing the other components which fail, should be described under the Cause and Corrective Action to Prevent Recur-rence column.
Components that do not fit any existing code should be de.
signated XXXXXX. The code ZZZZZZ should be used for events where a
component designation is not applicable.
CAUSE &, CORRECTIVE ACTION TO PREVEiVT RECUR-RENCE.
Use the column in a narrative fashion to amplify or explain the circumstances of the shutdown or power reduction.
The column should include the specific cause for each shut-down or significant power reduction and the immediate and contemplated Iong term corrective action taken. ifappropri-ate.
This column should also be used for a description of the major safety-related corrective maintenance performed during the outage or power reduction including an identification of the critical path activity and a report of any single release ot radioactivity ur single radiation exposure spe<<iti<<ally associ
~
ated with the outaae which accounts for more than 10 percent oi the allowable annual values.
For long textual reports continue narrative on separate paper and ret'erence the shutdown or power reduction for this
>laffalive.
(9/77
UNITSHUTDOWNS AND POWER REDUCTIONS LNSTR UCTIONS This report should d scribe ali plant shutdov:ns during the report period.
In addition. it should be the source oiexplm.
ation oi signir:cant dips in average power ieve!s.
Each signi ~
ficant reduction Ln pow<<. !evel (gr ater than 20% reduction in averaze dai!y power level ior the prec ding
'24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) shou!d be noted, even though the unit may not have been snut down conplete!yl.
For such reductions in power leve!,
th duration should be iist d as zero, the method of reduction should be listed as
-" (Other), and the Cause and Corrective Action to Prevent Recurrence column should exp!ah.
The Cause and Corrective Action to Prevent Recurrence column should be used to provide any needed explanation to fully describe the circunstanc s of the outage or power reduction.
NU41BER.
This column should indicate the secuential num-ber assimed to each shutdown or significant reduction in power ior that calendar year.
When a shutdown or siznificant power reduction bezins in one report oeriod and ends in another.
an entry should be made for both report periods to be sure Jl shutdowns or sizniiicant power reductions are reported.
Un(i! a unit h s achieved its first power zeneration, no num-ber shouid be assizned to each ntry.
DATE.
inis column should indicate the date of the start or each shutdown or signiricant power reduction.
Report as year. month. and day.
Auzust i4.!977 would be reported as 77081'.
When a shutdown or signif(cant power reduct'on begins in one report period and ends in another, an entry should be mad ior both report periods to be sure ail shutdowns or sizniricant power reducdons are reported.
TYPE.
Use "F" or "S" to indicate either "Fore d" or "Sche-duled." respectiveiv, ior each shutdown or signIQcant power reduction.
Forced shutdowns include those required to be initiated by no later than the weekend following discovery oi an vino(ma! condition.
It is recoznized that some judg.
ment is required in categorizin shutdowns in this way.
In
- general, a iorced shutdown is one that would not have been completed in the absence or the concition ior which corrective action was taken.
DURATION.
Self~xphna:ory.
When a shutdown extends beyond the er.d oi a report period. count only the time to the end oi the r port period and pic'p the ensuing down time in the fv!!owing report periods.
Report duration of outages rounded tv the nearest tenth vt anhour to fac!II(ate sunmation.
The sum vi (he tv(al vutage hours pius the hours the genera-tor was on L'ne should ecual the gross hours in (he reportinz period.
REASON.
Categorize by letter desizna(ivn in Jccordance with the table appe r'ng vn the report torm. Ifcatezory H, nust be used. suppiy brie('comments.
41ETHOD OF SHUTTINC DOWN THE REACTOR OR REDUCING POWER.
Calezorize by number desiznativn INote that this di(Ters
('om the Edison Eie iric Institut (EEI) dei:nitivns oi
-Forced Partial Outage-and
-Sche.
duled Paaiai Outage."
For these tei(ni. EEI uses J chanze vi
- 0 41W as the break p<>>ni.
For larger po<<er reactors. JO 41W is l<>>< >nlJIl a JnJnze to war<Jut explJAJtio<l.
La accordance with the table appearing on the report form.
Ifcategory
-" must be used. supply briei corn(rents.
LICENSEE EVENT REPORT =.
Reierence the appiicable reportaole occurrence pe..aininz to the outage or power reduction.
Enter the i:rst iour parts (event year. sequential report numbe:. occ rrence code and repor'. type) oi the five part designation as described in Item 17 or Instructions ior Preparation of Data Entry Sheets for License Event Report (LER) FIIe (NUREG4!6I).
This information may not be immediate)y evident for ail such shutdowns, vi course, since iurther investigation may be required to ascertain whether vr not a reportable occurrence was involved.) Ifthe outage or power reduction will not result in a reportable occurrence.
the oositive indication of this hck of correlation should be noted as not applicabie (<<</A).
SYSTE41 CODE.
The system ir. which the outag or power reduction originated should be noted by the two digit code oi Exhibit G
~ Instructions for Pr paration of Data Entry Sheets for (Licensee Event Repoa (LER) File (NUREG416l).
Systems that do not fit any existing code should be desizna-ted XX. The code ZZ should be used ior those events where a system is not applicable.
CO<4IPONENT CODE.
Seiect the most appropriate component from Exhibit I - Instructions ior Preparation of Data En(a Sheets for Licensee Event Report (LER) File {NUREG4161).
using the following critieria:
A. Ifa component failed, use the component directly involved.
B.
If not a component failure. use the re!ated component.'.g..
wrong valve operated throuzh error: list valve as component.
C.
If a chain oi failures occurs, the tirst component to mai-function should be listed. The secuenc of events. inciud-ing the other components which fail. should be described under the Cause and Corrective Action to Prevent Recur.
rene. column.
Comoonents that do not tit any existing code snouid be de.
signated XXXXXX. The code ZZZZZZ should be used:or events where a
component designation is not apoiicable.
CAUSE 8c CORRECTIVE ACTION TO PREVENT RECUR-RENCE.
Use the column in a narrative iashion to ampiiiy or exphin the circumstances oi the shutdown or power reduction.
The column should include the specific cause for each shut.
down or siznif(cant power reduction and the immeciate and contemplated lvnz term corrective action taken. if aopropri-ate.
This colunn should also be used ior a descaption ot the major saiety-rehted corrective maintenance performed during the outaze or power -reduc:ion inc!udinz an identification vi the critical path activity and a report of any sinzle re!ease vi
- adioa<<tiviiy vr sinzle radiation exposure specitically assvci
~
ated with he outage which accounts ior more than 10 percent vi 'the allowaole annual values.
For lonz textual repoas continue narrative on separate paper Jn<i ler'<'.rence theshutdown or power reduciivn iol tllis ilJrfatlv<.
Docket No.:
Unit Name:
Completed By:
Telephone:
Date:
Page:
50-315 D.
C-.
Cook Unit 81 R.
S.
Lease (616) 465-5901 July 13, 1979 1 of 1
MONTHLY OPERATING EXPERIENCES -- JUNE, 1979 Hi hli hts This Unit was in Mode 5 operation the entire reporting period.
Late in May, inspection of the feedwater piping attachment to the Steam Generators identified cracking adjacent to the weld.
The entire month was spent in repair and modification in this area.
Summar 06/01/79 -- Reactor Vessel Head studs were tensioned to the operating specifications.
06/05/79 -- Preliminary fill and vent of the Reactor Coolant System was started this day but was not totally completed until 6/26/79.
06/28/79 -- 5'4 Steam Generator was.successfully hydrostati-cally tested after repair of its feedwater piping.
06/29/79 -- k2 Steam Generator was successfully hydrostati-cally tested after repai r of its feedwater piping.
06/30/79 -- Pl Steam Generator was successfully hydrostati-cally tested after repair of its feedwater piping.
/
DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE 50 - 315 D.
C.
Cook - Unit No.
1 7-
-79 B. A. Svensson 616 465-5901 MAJOR SAFETY-RELATED MAINTENANCE
- JUNE, 1979 M-1 M-3 M-4 Non-essential service water containment isolation check valve NSW-415-4 did not pass leak r'ate test.
Valve discs were lapped and reassembled.
During inspection of piping support plate anchor bolts, a cracked weld was detected on feedwater pipe hanger, 1-GFW-L152.
The hanger was repaired by welding and inspected.
Three-way valve on discharge of excess letdown heat exchanger, HARV-171 was not functioning properly.
Replaced the valve stem,
- cage, plug and all gaskets.
The valve tested satisfactorily.
RRV-300, volume control tank vent regulating valve was stuck in the open position.
Valve was cleaned and gaskets replaced.
Retest was satisfactory.