ML20071F138

10CFR50.59 Annual Rept,1982

ML20071F138
Person / Time
Site:	Palisades
Issue date:	03/04/1983
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML20071F116	List: ML20071F113 ML20071F138
References
MI0383-0003B-NL, MI383-3B-NL, NUDOCS 8303140415
Download: ML20071F138 (8)

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i Consumers Power Company Palisades Plant Docket 50-255 - License DPR-20 1982 10 CFR 50.59 ANNUAL REPORT 7 Pages 1

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8303140415 830304 PDR ADOC.N 05000255 R PDR MIO383-0003B-NLO3

. 1 SFC 80-053' Service vater discharge check valve seats (originally bl0SS) were replaced with CS Stellite 21 mating surface and velded to the inlet body.

Safety Evaluation Summary This' chance, as made, is functionally equivelant to the previous conditions,

. therefore an unresolved safety question does not exist.

SFC 80-18h Auxiliary feedvater pump safety grade auto starting initiating circuits were installed for steam generator lov level indication per EUREG 0578.

Safety Evaluation Summary This modification provided independent multiple channels by using separate raceways, conduit, and junction boxes to ensure system flexibility while maintainine plant safety at all times, therefore improving the cargin of safety.

- SFC 81-212 SFC 81-213

., SFC 81-21h These three specification field changes replaced failed execre icn chamber detectors with ion chambers made by a different tanufacturer.

i Safetv Evaluation Su rary The replacement icn chambers are functionally equivalent, therefore an unreviewed safety question does not' exist.

i SFC 82-029 1 Under this field change a h" stainless steel valve was added to a notor

, - operated leak off line to allev better control of leakage fren the packing

, gland.

Safetv Evaluatien Surrarv l

The leak off line was non seis=ic. Failure of the leakoff line does not change pressure beundaries, and was desicned for full PCS pressure / temperature.

- An unreviewed-safety questien does not exist, and cc=plete failure of this i valve vould not alter the motor operated valve desien, function or operability.

i SFC 82-05L i SFC 62-055 Under each of these SFC's a pipe support was analyzed and codified to assure

that the pipe and supports fully ec= ply with FSAR Appendix A criteria. They were final items ec=pleted in response to 12C IE Eulletin 79-lk.

Safety Fvaluation Cu~:.arv 8 l These two supports increased the structural integrity of the critical service water and EPSI piping, increasine the targin cf safety provided for these

systens under the Tech. Specs. ,

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2 SFC 82-056**

This Specificaticn Field Change was initiated to modify a pipe hanger en the SIS and long ters cooling lines to increase load capabilities, insuring co:pliance with FSAR Appendix A criteria and IE Eulletin 79-1h.

Safetv Evaluatien Su ary This modification ensures co=pliance with the FSAR criteria and increases the structural integrity tnd safety margins for this syste=.

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SFC 82-060 This modification added a h" stainless steel valve tc a control valve leakoff line to allev better control of leakage frem the packing gland.

Safety Evaluation Surrarv This leakoff line was not seistic. Failure of the leakoff line does not change pressure beundaries , and was designed fer full FCS pressure / temperature.

An unreviewed safety question does not exist, and the valve's conplete failure vould not alter the control valve design, functicn or operability.

SFC 02-06h This specificatien field change va- initiated to allev the deplueging of steam generator tubes which had been erronecusly plueged 6 to S years ago; and for the inspection of these tubes by Eddy Current testing metheds after deplueging.

Safety Evaluation Su=ary The deplueging of these tubes was done under approved plant precedures.

The Eddy Current testing was dcne under CFCC approved ICE procedures. An unrevieved safety questien did not exist, and the cargin of safety was net reduced.

SFC 82-066 This field change provided an engineerirg analysis to allev the revision of the heat treatment on bolting of a safety related tank. (SIEWT)

Safety Evaluation Sum ary The change in heat treatrent does not adversely affect the in-service performance of the alley (6C61), and does not chance the failure codes or failure probabilities, and it's use is pernitted under ASME Section II, SE-211. The cargin of safety is therefore unchanged.

SFC 82-068 This specificatien field change provided an engineering evaluatien of material substituted by the nanufacturer for safety class equipment.

(Component cooling syste= E7 discs.)

Safetv Evaluatien Sunnarv The caterial substituted passes adequate strength, hardness, ductility, tcughness and corrosien resistance centrols, and does not chance the functien or cperability of the valve; thus an unreviewed safety question does not exist.

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ETC 82-C69 This specification field change provided an engineering evaluation alleving the substitution of material by the manufacturer for safety classes equipment en the engineering safeguard system. (RV disc.)

Safety Evaluatien Su=arv i

The material substituted passes adequate strength, hardness, ductility, -

toughness, and corrosion resistance control, and does not change the function

or operability of the valve, thus an unreviewed safety questien does not exist.

3 j SFC 82-095 This chance added a 3!' stainless steel valve to a control valve leakoff line on the CVCS system to allev better centrol of leakage frem the packing gland.

Safety Evaluatien Sun =ary The leakoff line was non seismic. Failure of the leakoff line does not 4

chance the pressure boundarf, and was designed for full PCS pressure / tempera-j ture. An unreviewed safety question does not exist, and ccrplete failure of 4

this valve vculd not alter the control valve design, function or operability.

i SFC 82-096 This ' specification field chance provided engineering evaluation of varicus heat treatments for material substituted by the nanufacturer for internal parts for the. safety in,jection pumps.

Safetv Evaluation Su arv The function and/or operation of the pu=ps remain unchanged due to the sub-stitutien involved. The material is technically adequate; no new failure rechanists were created, and the probability of failure is unchanged.

SFC 82-1?6 This modification was initiated to enable a valve replacenent to a pipe, which involved a nodification to a pipe coupling on the ESS system. The coupling was tcred out en both ends, and fillet velded to preclude leakage.

Safety Evaluation Su=arv The coupling and the velds net or exceeded FSAR requirements, therefere the

modificatien did not reduce operability er the function of the systen involved.

1 SFC 82-158  !

Under this specification field change nodificatiens were nade to control valves CV-0823 and CV-C82h to acec=ciate air actuaters.

l Safety Evaluaticn Sun =ar-r The modification to the valves does not chance the tede of operatien of

, these valves, therefore the possibility of falve failure is unchanged.

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. SFC 82-162 This specificatien field change covers the replacement of a toric acid heat trace circuit.

Safety Fvaluation Su rary The replacement heater installed under this change has a high vattare, therefore the probability of malfunction of this circuit is decreased.

SFC 82-185 This specification field change replaced the startuu detectors cnd pre-amplifiers with different types on III-0001, !!I-CCO2, !!I-0003 and ::I-0cCL.

Safety Evaluatien Su rary The systen desien was unchanged, and the replaced cc=;cnents shculd result in more reliable informaticn/instrumentatien, thus enhansing the marrin of safety.

FC 303 and FC 303-3 These facility changes covered the ec:.structicn of a feedvater purity building and tie-ins to existing plant systers. This long ter= =cdificaticn covered numercus subsystems over an extended pericd of time. Althouch the modifications have been operatienal fer several years, the facility chance package was not closed out until 1982.

Safety Evaluation Surrary This codification was considered by SARE (Safety and Audit Review Board) as not.

constituting an unreviewed safety question. (See SARB meeting notes 11/25/75)

FC 3hh This modification added a DC pcVer supply to position indientors for safety injection tank outlet valves indicating system. ,

Safety D.-aluation Su .=arv "he change to a DC power supply for these valves provides a more reliable source of power, thus the cargin of safety is increased.

FC 3hh*

The installation of two spare electrical cannisters in the containment build-ing penetrations in connection with 77 3hh was docu.ented in FC 3hhA.

? fety Fvaluation Fu rarv These electric 21 cannisters have no .or' - robabilit:* of failure than those already installed, thus the mrrin of rife v is not leereased.

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.s ,p9 In tallation of a redundant vacuum dezacifier vacuum pump was 9erferned e

under this facility chance, including necessary supporting equipment and controls.

Safetr rynlustion Sun ary The installation of this redundant equipment improves plant reliability which decreases the possibility of an accident.

v. e h ,,o Under this facility change the boric acid heat trace cystem installed concletely replaced the boric acid heat trace system with a new and different type, and added circuit failure mcnitoring, temperature recording and in-service testinc capabilities.

Safetv valustion Su mary The nodernization of thic systen and the installation of additional equir-ment increased the reliability of thic systen, thus increatinc the marri:

of safety.

FC h86 Thic ecdification covered the installation of new auxiliary 'eedu. ster lina to cte1= cenerstor auxiliary feedvater nozzes and flow cistrib ::icn ~r7 c~. .

replacinc the auxiliary feedvater entry into the main feedvater lin n.

Safetv 7 valuation Surrary The marrin of safety is increased because of thi: .edifi sticn in th1: it reduces the potential of water h1mmer which coula cause 1 faeavster line failure.

FC ho6 This facility change documents Palisades Core 5 reload.

Safetv Evsluation Su.nart Reference : RC Safety Evaluation supportine Amendrent c3 to provisional operating license "o. 20, Consumers Fever 20.,

F211:1 des Plant, rocket ?:o.

50-255, dated December 8, 1931. (::otice of i :uance of m:endment to provisional opera, ting license - 7590-01).

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1 (TMI nodification) Under this facility chan'e a n=- control panel (cllA) was installed in the Control ?ocm.

Safety Praluation 7u rary This ' panel has no centrol functicn eff ?: en nccil'nt or nalfunction probabilities to consequences for cauirrent i portant , safety,

6 FC 516-1 Fhase I .'uxiliary feedvater system (UUREG 0737) - Installation of redundant manual valves in the suction line of the auxiliary feedvater punns, and the removal of the Y. strainer internals were the modifications made under this facility change.

Safety valustion Su.marr This modification was performed to provide an additional flow path in the event of a failure of one of the manual valves in the auction line of the auxiliary feedvater pumps. The removal of the Y strainer reduces chances of the strainer becoming plugged and cutting off flow to the punns. This modification reduces the consequences of an accident or nalfunction to equipment intortant to safety.

FC 531 This modification installed a manual isolation valve on the service water pipinc supply header to enable isolation of the non seismic portion of piping going to the air conditioners, without isolating the main control room air conditioner chillers. (IE Eulletin 79-1k)

Safety Evnlustion Summary The possibility of malfunction of equipment important to safety is decreased by this modification in the case of a seismic accident.

Snecial Test rrocedure T-150 Local Leak Rate Test for Personnel Air Lock Inner Ecor Equ21icin- T217e.

This special test was performed during cold shutdown conditienc ,1nd con-tainment integrity was not required during the performan 2 of the test.

Safety Evaluation Su rarv This special test procedure did not create an accident or a nslfunction of a different type than previously evaluated Snecial Test Procedure T-15h Personnel Air Lock Inner Door Between the Seals Local Leak Rate Test.

Safety Evaluation Sic 21rv This special test related only to radiolecical len%2re durinc accident conditions and did not affect or create an sceident of a different tyre than evaluated previously.

T Special Teit Procedure T-158 Eoric /,cid 3ravity Feed Line Test. The purpoce of thir. special +es+ - ,-

to prove operability of the boric acid gravity feed line after main +en$ ca vy veri'71ng floe, reculting in an increase of boric acid to tha Co ol,~n+u

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. 1". %v + 1l a+o t'ne 1ine was free of obstructions, Cafet7 Evaluation Sunnary

".nia stecial test afforded a method to prove the operability of tha ~

Sravity feed line, thus increasing the margin of sarety, l

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