ML19341A307

Operability Review of ECCS at Plant Hatch Units 1 & 2.

ML19341A307
Person / Time
Site:	Hatch
Issue date:	12/22/1980
From:	GENERAL PHYSICS CORP.
To:
Shared Package
ML19341A305	List: ML19341A304 ML19341A307
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.17, TASK-TM GP-R-33009, NUDOCS 8101220569
Download: ML19341A307 (75)

Text

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.. . 4 GP-R-33009 December 22, 1980 x

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GENERAL PHYSICS CORPORATION l

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l GP-R-33009 OPERABILITY REVIEW OF THE EMERGENCY CORE COOLING SYSTEMS AT PLANT HATCH - UNITS 1 & 2 -

for Georgia Power Company 230 Peachtree Street P. O. B5x 4545 Atlanta, Georgia 30302 GP-R-33009 December 22, 1980 Prepared by General Physics Corporation Columbia, Maryland

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l (Under Purcha'se Order No. E53974)

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s GP-R-33009.

TABLE'OF CCNTENTS Page SECTICN 1. 7.4T RODUCTI CN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Purpose and Scope

.................................. 1 1.2 Background......................................... 1

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SECTICN 2. GENERAL APPRCACH......................................... 3 2.1 Description of the ECCS and Related Systems /

, Cc=po ne n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Technical Specification Limiting Conditions o f Cpe ra ti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.3 Records Search..................................... 6 SECTION 3 RESULTS.................................................. 14 SECTICN 4. REFERENCES............................................... 20 A'"fACHENT A : CETAILED

SUMMARY

OF ECCS OUTAGES FOR HATCH CIIT 1 (12/1/75 - 12/1/80) . . . . . . . . . . . . . . . . . . . . . . . . . . . , A-1 ATT7CHMENT B : DETAILED

SUMMARY

OF ECCS OUTAGES FOR HATCH miIT 2 (7/1/7 8 - 12/1/8 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 P

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GP-R-33009 SECTION 1. INTRODUCTION

1.1 Purpose and Scope

This document was prepared in response to TMI Action Plan Requirement II.K.3.17, " Report on Outages of ECC Systems". An extensive review of operating and maintenance records was conducted to obtain details on dates, lengths and causes of outages for Emergency Core Cooling Systems (ECCS) at .

Plant Hatch, Units 1 and 2. Results for operability of the ECCS are pre-sented for the most recent five year period of operation for Unit 1, and for the period since fuel loading for Unit 2.

Cumulative outage times are given for each major subsystem of the ECCS.

These outage times are considered quite conservative since they include events which resulted in the apparent loss of function of an ECCS subsystem component (even though partial or complete function should have actually been available) as well as events which clearly made an ECCS subsystem /

component unavailable. As an additiona3 conservatism, for the purposes of this study, the definition of those subsystems / components which belong to the ECCS was expanded beycnd that given in the Hatch Final Safety Analysis Repo rt (FSAR) , Specifically, the containment cooling mode of the Residual Heat Removal (RHR) System, the RHR Service Water System, the Plant Service Water (PSW) System, and the Standby Diesel Generators have been included in the study results.

The overall purpose of this report is to provide the historical Hatch ECCS operability data requested by the NRC, to support,the determination of whether a need exists for cumulative outage requirements in the Technical Specifications.

l.2 Background The NRC Action Plan (Beference (1)) developed as a result of the Three Mile Island Unit 2 accident, incl ~uded various measures to be taken to improve

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• GP-R-33009 the capability of plants to mitigate the consequences of loss-of-coolant accidents and loss-of-feedwater events (Task II.K). Item II.K.3.17 of the Action Plan requires a report on ECCS cutages for boiling water reactor plants. Clarifications given in References (2) and (3) define the NRC position, which is repeated below:

" Several components of the ECC systems are per rit:ed by Technical Specifica:icna :c have substantial cu: age times (e.g., 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> for cne diesei-generator; 14 days for the ECI system). In addition, there are no cumula-tive outage time limitations for ECC systems. :icensees .

should sulnit a repor: detailing outage dates and lengths of cutages for all ECC systems for the last 5 years of cperation. The repor: shchid also include the causes of the cutages (e.g., ccntrailer failure, spurious iscia:icn).

The presen: Technical Specifications (T/S) con:ain li~:its on alEcuable cu: age :L :es fce ECC systems and c:mpcnents.

Scuever, there are no cu~ulative cutage time lin..:aticns on these s ~e systems. I: is possible that ECC equi;r:ent acuid mee: present :/S requirements but have a high

c: availability because of frequent cutages vi:hin the allouable T/S.

Yne licensees should submit a repor: de:aiting cutage da:es and Length of ou: ages for ai; ECC systems for the las: 5 years of crera:icn. :his report vill provide the staff uith a quantifica:icn of historical unreliability due to :est and maintenance outages, uhich uiti be used

de: ermine if a need exists for cumulative cutage 4 require ents in the rechnical Specifications. "

i A study was therefore undertaken at Hatch to quantify the historical ECCS outage times. This was performed by conducting a thorough review of relevant plant records. Results are provided for the period from December 1, 1975 to December 1, 1980 for Unit 1, and from July 1, 1978 to December 1, 1980 for Unit 2.

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e GP-R-33009 SECTION 2. GENERAL APPROACH 2.1 Description of the ECCS and Related Systems / Components The Hatch Emergency Core Cooling Systems consists of the following four separate subsystems (References (6) and (7)) :

e High Pressure Coolant Injecticn (HPCI) System '

o Automatic Cepressurization System (AOS) e Core Spray (CS; System o Low Pressure Coolant Injection (LPCI) Mode of the RHR System The ECCS are designed to limit fuel clad temperature over the complete spectrum of possible break sizes in the nuclear system process barrier, up to an including the double-ended break of the largest line connected to the reactor vessel. Tables 1 and 2 give su=maries of the important characteris-t.as of the ECCS subsystems for each unit, and indicate how backups are

available for each subsystem.

The following additional systems /compcnents are included in this ECCS cperability review because of the nature in which they support the ECCS in etrrying out their design functions under various asrumed accident conditions:

e Containment Cooling Mode of the RHR System o RHR Service Water System o Plant Service Water System (PSW) e Standby Diesel Generators The Equipment area coolers for the HPCI and RHR pumpe are included

. with the HPCI and RHR Systems (for the purposes of this study) since failure of these coolers would affect operation of the ECCS.

2.2 Technical Specification Limiting conditions of Operation The Technical Specifications (References (4 ) and G ) define the 3

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TABLE 1: ECCS DATA FOR IIATCll UNIT #1 NO. INDIVIDUAL DESIGN PRESSURE A. C. POWER BACKUP SYSTEM INSTALLED CAPACITY RATING

• RANGE SYSTEMS REQUIREMENTS IIPCI 1 1001 4250 y[u 1120 psig None ADS, LPCI, 0 1120 - to 150 psig & CS 150 psid ADS 7 Ib

, 20% 800,000 g 1125 psig None Remote /

0 1125 psid U" 9 """" #"1I*

valves CS 2 100% 4625 giu 265 psig Normal Aux. LPCI O113 psid to O psig or Standby Diesel LPCI 4 33 1/3% 7700 gia 290 psig Normal Aux. CS 0 20 psid to O psig or Standby Diesel O,

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• psid - Pounds per square inch differential between reactor vessel and primary containment. o o

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l TABLE 2: ECCS DATA FOR IATCII UNIT #2 i

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NO. INDIVIDUAL DESIGt3 PRESSURE A. C. POWEH HACKUP SYSTEM INSTALLED CAPACITY '

ImTING* IMtK;E REQUIREMENTS SYSTEMS IIPCI 1 100s 4250 gpa 1135 psid None -ADS, LPCI O 1135 psid to 162 psid & CS i

1 i ADS 7 20s 6 lb '

l 4.8xlO - 1125 psid None llPCI

, hr to 50 psid i

0 1125 psid 1 (n i

CS 2 100s 9250 ypm 2u5 puid 2 separate AC IICI /

0 113 psid to 113 psid buses (diesels Redundant  !

backup) CS 'I LPCI 4 33-1/3% 9800 gpn 202 psid 2 separate AC I

CS/

0 20 psid to O psid buses (diesels Redundant

] backup) LPCI o

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• psid - Pounds per square inch differential between reactor vessel and primary contairunent. 8 1 o i

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GP-F- 3009 requirements for availability of the ECCS and the limitations imposed en operation when portions of the ECCS are unavailable. ?! ables 3 and 4 summarice the requirements of the Hatch Units 1 and 2 Technical Specifica-tions which are relevant to this ECCS cperability review. Tables 3 and 4 also shew the current ECCS cutage time limitations for the Hatch plants.

Tables 3 and 4 can be used to establish the type of events which constitute an COCS outage for the purposes of this study. An ECCS cutage is censidered to be any event which results in a Limiting Condition of Operation (LCO) as defined by the Technical Specifications. It is not necessary to include periods of inoperability during which operability is net needed. For example, if during Run Mode the HPCI pump is declared incperable (resulting in an LOC), and then 3 days later the plant is shut-down for 3 ncnths and the LCO is not cleared until just prior to startu e, the cutage period for the HPCI pump is taken as 3 days (not 3 months plus 3 days) since the HFCI System is not required when the reactor is shut down.

2.3 Fecords Search To establish historical ECCS cutages for Hatch, the following types of plant records were reviewed:

e Records for Limiting Conditions of Operation (LCO's) derived from HNP-901, Revisions 2 through 4 covers period from 9/79 to present e Records for Cumulative Dcwntime

- derived from HNP-901, Revision 0 and Revision 1

- covers period from 5/76 to 9/79 e Records for Equipment Operating Times (preceded HNP-901)

- derived frcm Standing Order 75-2

- covers period frem 1/75 to 7/75 6

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TAB LE 3 :

SUMMARY

OF TECllNICAL SPECIFICATION REQUIREME13TS FOR Tile liATCil UNIT 1 ECCS AND REIATED SYSTEMS / COMPONENTS ECCS PLANT OPERATING MODE T/S INOPERABIE REQUIRED OPERABLE OUTAGE TIME SYSTEM REQUIREMEfff* SECTION SYSTEM /CCMPONENT SYSTEM / COMPONENTS LIMITATION Core Spray Prior to Startup from 3.5.A.] Hone All -

Cold Shutdown or 3.5.A.2 One CS One CS 7 days Irradiated Fuel in Vesse' IUIR/I.PCI and reactor pressure is Diesels greater than atmospheric RIIR (LPCI Prior to Startup from 3.5.B.I.a None All -

and Contail -Cold Shutdown s

-J ment Cool- or 3.5.B.l.b ik>ne 1 RIIR W/2 pumps -

ing Mode) Irradiated Fuel in vesse or and reaClor pressure (P) 2 RilR W/l pump ea.

greater than atmospheric -

Power Operation 3.5.B.1.d Ik>ne ICPI El1-F0lO closed & locked annunciator op.

Prior to Startup 3.5.B.I.e None Both recirc pump disch. valves o

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3. 5. B. 2. a 1 LPCI pump Femaining LPCI pumpt 7d j, noth IJ'CI sub- O system flow paths o CS 8 Diesels

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TABIF. 3 (Continued)

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ECCS PLANT OPERATING MODE T/S INOPERABLE REQUIRED OPERABLE OUTAGE TIME SYSTEM REQUIREMENT

• SECTION SYSTEM / COMPONENT SYSTEM / COMP'M4ElfrS LIMITATION 3.5.B.2.b 1 LPCI subsystem Remainiing LPCI sub- 7d (both LPCI pumps system or active valves CS in that system) Diesels Irradiated Fuel in 3.5.C.1 None RIIR Service Water -

vessel and pressurized a&b or

, prior to startup Irradiated Fuel in 3.5.C.I.c Hone 1 RIIR service loop -

vessel & de-pressurized ibwer Operations 3.5.C.2 1 RIIR pump All others in both 30 d subsystems 3.5.C.3 2 RIIR piunps All redundant active 7d components in both subsystems O,

'rs IIPCT Prior to Cold Startup 3.5.D.1 tbne All O or U Irradiated Fuel in 3.5.D.2 III'CI ADS 14 d O vessel and P >l13 psiq CS RIIR (LPCI)

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TARI.E 3 (Continued)

ECCS PLANT OPERATING MODE T/S INOPERABLE REQUIRED OPERABLE GfTAGE TIME SYSTEM REQUIREMENT

• SECTION SYSTEM / COMPONENT SYSTEM / COMPONENTS LIMITATION RCIC Prior to Cold start 3.5.E.1 tbne All -

or Irradiated Fuel in 3.5.E.2 RCIC llPCI 7d vessel and P >113 psig ADS Prior to Cold Start 3.5.P.1 l' of 7 vlaves 6 of 7 valves -

or Irradiated Puel in 3.5.P.2 2 of 7 valv'es IIPCI 30 d e vessel and P >113 pnig Min core / 3.5.G 1 standby diesel Ri!R (IPCI) 7d containment containment cooling cooling RIIR Irradiated Fuel and Cold 3.5.G CS Shutdown cooling (shutdown Shutdown (and no work IPCI of RIIR -

cooling) which could drain vessel Containment cooling Ot Y

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F TARI.E 4 : SUMFARY OF TECIINICAL SPECIFICATION REQUIRFRENTS FOR Tile IIATrII UNIT 2 ECCS AND PETATED SYSTEMS / COMPONENTS 4

) ECCS PLANT OPERATIIK; MODE T/S INOPERARLE REQUIRED OPERABIE OUTAGE TIME SYSTEM REOUIREMENT* SECTION SYSTEM / COMPONENT SYSTEM / COMPONENTS LIMITATION l

IIPCI Conditions 1, 2, 3& 3.5.1 IIPCI RCIC 14 d Steam I)me Pressure (P) ADS ,

>150 psig '

CS 1

LPCI 'i i

w ADS Cond. 1, 2, 3& 3.5.2 None 7 ADS valves

• P > 150 psig  :

1 ADS valve 6 ADS valves 14 d l IICPI  !

CS LPCI i

CS Cond. 1, 2, 3 3.5.3.1 1 CS Loop Both LPCI 7d I cond. 4, 5 1 CS Loop 1 LPCI within 4 hrs.

i 4 hrs. 0/W sus- I

. pend OPS. that I

may drain vessel  ;

Cond. I 2 CS Loop 1 LPCI & other 4 hrs.

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) LPCI within 4 hrs. 6 f (see almve) g i

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j *For definition of Conditions, see explanation at end of table.

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TABIE 4 : Continued ..

i ECCS PLANT OPERATING MODE T/S INOPERABLE REQUIRED CPERABIE OUTAGE TIME SYSTEM REQUIREMENT

• SECTION SYSTEM / COMPONENT SYSTEM / COMPONENTS LIMITATION LPCI Cond. ], 2, 3 3.5.3.2 1 LPCI loop or Hoth CS 7d 1 LPCI Ptimp Cond. 4, 5 1 or 2 LPCI See Action Rey'd by 3.5.3.1 I e

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• Conditions: 1 - Run Mode j, 2 - Start up and Standby d, 3 - Shutdown an<1 Ilot Standby $

4 - Shutdown and Cold Shutdown 8 5 - Heruelin<g  !

.. .. GP-R-33009 e Daily Operating Reports

- derived from HNP-400

- covers entire period '

e Deviation Reports (DR's) 4 e Maintenance Requests (MR's)

• Design Change Requests (DCR's) e Licensee Event Reports (LER's) e Shift Foreman and Operator Log Books The general procedure used was to first extract basic ECOS outage data from the plant records for Limiting Conditions of Operatien (recorded per i

l'lant Procedure HNP-901 and Standing Order 75-2) . Where additional information was needed, the other documentation sources were reviewed.

It should be noted that LCO records contained the most complete data, and the outage results compiled for the time period when the procedure for '

compiling these records was in effect contains the highest degree cf accuracy. For the earlier time periods, cutage details were more difficult to obtain and in many cases it was necessary to provide estimates.

The plant status during an ECCS maintenance er test evolution was a major factor considered in compiling the study results. Many maintenance and testing tasks are performed on ECCS components when the plant is in a

shutdown mode. For many of the tasks performed in shutdown mode, the affected ECOS subsystem is not required to be operational, and the mainten-ance or testing task should therefore not be accounted for as an ECCS '1 -

The major plant shutdown periods for which this logic was applied (in compiling the study results) are as follows:

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GP-R-33009

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i UNIT 1 UNIT 2 11/16/75 - 12/23/75 8/20/78 - 10/11/78 3/27/76 4/21/L3 12/25/78 - 2/3/79 3/12/77 - 5/17/77 2/15/79 - 5/28/79 3/3/78 - 4/14/78 3/1/80 - 4/22/80 11/1/80 - present 5/8/78 - 6/15/78 4/22/79 - 8/22/79 12/15/79 - 1/4/80 1/24/80 - 2/1/80 5/24/80 - 6/11/80 a

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GP-R-33009 SECTION 3. RESULTS Attachments A and B provide detailed summaries of ECCS outages for Hatch 1

Units 1 and 2, respectively. The results given in these attachments tend to overstate the actual ECCS outages, since events are included which appear to compromise system capability when in fact partial or full function of the system would be expected. Those items which are questionable in this regard are assumed to be true ECCS outages, lending to the overall conservatism of the study results.

ECCS outages are listed chronologically in Attachments A and B accord-ing to the following scheme:

Table A - High Pressure Coolant Injection System Table B - Automatic Depressurization System Table C - Core Spray System Table D - Low Pressure Coolant Injection and Containment Cooling Modes of RHR System '

Table E - RHR Service Water System Table r - Plant Service Water System Table G - Standby Diesel Generators Tables 5 and 7 summarice the data given in Attachnent A for Unit 1, and l

1 Tables 6 and 8 summarice the data given in Attachment B for Unit 2. Tables 5 and 6 give su=maries of all ECOS outage events sorted by system and by year. Tables 5 and 6 do not account for overlapping events in a given i

system, and therefore reflect an overstatement of the cumulative ECCS outage times. Tables 7 and 8 give the cumulative ECCS outage times for Hatch Units 1 and 2, respectively.

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Table 5 shows that the duration of an ECCS outage event for Unit 1 has averaged 1,5 days over the past five years of operation, with the yearly i

average ranging from 0.9 days to 2.6 days per outage event. Table 6 shows that the duration of an outage event for Unit 2 has averaged 1.9 days over 14 I

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l Table 5 : Summary of ECCS Outage Events for llatch Unit I by System aml Year Year System 1976 / 1977 1978 1979 1980 Total Average High Pressure 0.5d* 10.2d 4.6a 11.0d 6.1d 32.4 1.1 days /

Coolant injection (2)t (5) (8) (7) (7) (29) event (ilPCI System)

Automatic 0 0 0.05d 0 0 0.05 0.05 days /

Depressurization System (ADS) (1) (1) event Core Spray (CS) o.5d 1.7d 18.od 13.4d 0.96d 34.6 2.2 days /

System ( I) (3) (5) (3) (4) (16) event 9

m RilR (LPCI and 2.Ud 4.6d 5.3 25.8 70.1 31.6 1.7 days /

Containment Cooling), (7) (6) (14)

(10) (28) (65) event and Service Water 31.4d 6.9 28.6 53.4 76.4 196.7 2.7 days /

Plant Service Water (13) (12) (12) (In) (19) (74) event Stan<R>y Diesel 7.2d 23.ad 19 9 44 7d 17 8 113 4 I l days /

Generators (17) (27) (16)

(24) (16) (100) event 42.4 47.2 76.5 148.3 132.9 447.3 1.5 days /

Total (40) (54) (59) (75) (71) (299) event Average 1.1 days / 0.9 days / 1.3 days / 2.6 days / 1.8 days /

event event event event event s

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/ 1976 data include Deecmber,1975 $

• Total time in effect (days) O f ) Indientes total number of outage events

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Table 6 : Si:mmary of ECCS Outage Events for liatch Unit 2 by System and Year '

Year System 1978 1979 1980 Total Average

!!!gh Pressure 1. 8 d

• 18.4d 28.2d an,4 1.2 days /

Coolani Injection (3) 1 (17) (19) (39) event (IIPCI System)

Automatic o o o o o days /

Depressurir.ation event System (ADS)

Core Spray (CS) o

2. '3d 9.5d 12.4d 1.2 days /

System (3) (7) (10) event RIIR (1,PCI and 62.1 3.9d 3.2d 69.2 2.5 days /

Containment Cooking), (10) (7) (11) (28) event aml Service Water Plant Service Water o.1 56.51 31.3d 88.1d 2.9 days /

(1 ) (9) (20) (30) event StarwR>y Diesel 16.5d 9.5d 11.3 37.3 1.5 days /

Generators (4) ('3) (11) (24) event 80.'7 91.2 83.5d 255.4 1.9 days /

Total (18) (45) (68) (131) event Average 4.5 days / 2.0 days / 1.2 days /

event event event

• Total time in effect (dnys) @

E 2,

f( ) Imlicates total number of outage events 8 8

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Table 7 : Cumulative System Outage Times for IInteh Unit 1 ECCS Year System 1976 1977 1978 1979 1980 Total Average Iligh Pressure 0.5d 10.2d 4.6d 11.0d 6.1d 32.4d 6.5 days /

Coolant Injection . yr.

(IIPCI System)

Automatic Depressurization 0 0 .05d 0 0 0.05d 0.01 days /

System (ADS) yr.

Core Spray (CS)

System 0. 'id 1.7d la.0d 13.4d 0.96d 49.9d 10.0 days /yr .

O RIIR (LPCI and 25.2d Cevlainment Cooling),

2.ad 4.6d 5.31 30.7d 68.6 13.7 days /

anc. Service Water yr.

Plant Service Water 29 44 6.9d 28.6 49.4d 74.3d Ina.6 37.7 days /yr.

Standby Diesel 7. '.d 19.8d 30.4d 21.3d 17.4d 96.1 19,2 days /yr.

Generators Total 40.4d 44.7d 76.3d 30.4d 176_ %1 gy , 6.7 days 7.5 dayn 12. 7- days. 21.6 days 21.1 days 69.5 days 13,9 days sys sys sys: sys svs svs sys.vr.

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l Table 8 : Cumulative System Outage Times for IIntch Unit 2 ECCS '

Year System 1978 1979 1980 Total Average l .

Ifigh Pressure 1.8d 18.4d 28.2 48.4d 16.1 days /yr.

Coolant injection (IIPCI System)

Aute>9atic Uc;>ressurizatic't o o o o o day /yr.

System (ADS)

Core Sprsy (CS)

System 0 2.9d 9.5d 12.4d 4.1 day /yr.

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• RIIR (I,PCI and Containment Cooling), 78.3d 3.9d 3.2d 85.4d 28.5 day /yr.

and Service Water Plant Service Water 0.3d 56.5d 29.8d 86.6 28.9 day /yr Standby Diesel 16.5d 9.Sa 1I.3d 17.3d 12.4 day /yr Generators Tobl 96.9d 91.2d 82.Od 45.0 15.0 days Average 16.2 days 15.2 day 13.7 day sys- yr.

sys sys gy, sys

• Total time in effect (days) a l'

( ) Indientes total number of outage events d, o

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.* .* GP-R-33009 the period since fuel loading, with the yearly average ranging from 1.2 days to 4.E days per outage event.

Tables 7 and 8 show that the cumulative outage times average 14 days per system-year for Unit 1, and 15 days per system-year for Unit 2.

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SECTION 4. REFERENCES

1. NUREG-0660" NRC Action Plan Developed as a Result of the TMI-2 l

Accident", May, 1980.

., 2. NUREG-0626, " Generic Evaluttion of Feedwater Transients and Small Break Loss-of-Coolant Accidents in GE-Designed Operating Plants and Near-Term Operating License Applications", January, 1980.

3. Letter to all Licensees of Operating Plants and Applicants for l

Operating Licenses and Holders of Construction Permits, " Preliminary i

Clarification of TMI Action Plan Requirements,", D.G. Eisenhut,

September 5, 1980.

, 4. Operating License DPR-57, Technical Specifications and Bases for i

Hatch Unit 1, Georgia Power Company, Docket No. 50-231.

5. Oprating License NPF-5, Technical Specifications and Bases for  !

Hatch Unit 2, Georgia Power Company, Docket No. 50-366.  !

4 f l 6. Edwin I.- Hatch Unit 1 Final Safety Analysis Report, Ammendment 78, 7

October 1, 1990,

7. Edwin I. Hatch Unit 2 Final Safety Analysis Report, Amendment 17, October 1, 1980.

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.. .. Attcchment A I l

ATTACHMENT A TO GF-R-33009 DETAILED

SUMMARY

OF ECCS OU* AGES FOR HATCH L"IT 1 (12/1/75 - 12,'1/80) l t

A-1 i

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Table A : SYSTEM COMPONENT OUTAGES FOR IIATCil UNrr 1 System: 111 9 1: Pressure Coolant Injection (IIPCI) system Outage in Effect Outage Terminated Total Time Dets: Time Date Time Cause Days Ifours Minutes 5-4-76 1340 5-4-76 2135 Plow Switch E41-fl006 6 55 8-20 ~6 1335 8-20-76 1820 To repair E41-F028 5 15 -

1-30-77 0910 1-30-77 1340 Checking D.C. Mov's for Surveill- 3 30 ance test 3-8-77 0615 3-8-77 1655 Perform overspeed trip 10 40

> 8-14-77 0745 8-14-77 1735 Steam Iraks Fixed 9 55 0-28-77 2107 9-4-77 1415 P41 C001D Rebuild pump, "D" PSW 6 17 8 pump seal leaking 9-28-77 0630 9-30-77 1300 IIPCI Ition 1 10 1-4-78 0650 1-4-78 1430 IIPCI , to repair control linkage 12 40 1-6-78 0640 1-6-78 1200 IIPCI For Maintenance to readjust 5 20 oil relief valve 2-24-78 2300 2-25-78 1215 E41-C002 Performed overspeed test 5 30 N

5-7-78 1150 5-7-78 1415 IIPCI IrlOP Intentional for 2 25 DcR 76-62 et 10-17-78 1125 10-17-7H 2230 E41-C002 Steam leak repair 11 #

5 E41-r029

1 i

l .

Table A : SYSTEM COMPONENT OUTAGES FOR IIA 1EH UNIr 1 System: Iligh Pressure Coolant Injection (IIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days liours Minutes 11-15-78 0750 11-15-78 1730 E41(IIPCI) for steam leak 9 40 12-3-78 2230 12-4-78 0115 IIPCI It!OP E41-F002 3 45 12-13-78 1455 12-16-78 0235 E41(IIPCI) Pepair steam leaks 2 10 40

~

1-9-79 2330 1-10-79 0350 llPCI Room high AT 4 20 2-9-79 1330 2-9-79 1645 IIPCr Repair Steam Irak '3 15 Y

w 2-26-79 0755 2-28-79 1705 IIPCI Sys. Erratic turbine & 2 9 50 flow control 3-27-79 0500 3-27-79 1600 IIPCI ProventiveMaintenance 11 4-18-79 0600 4-19-79 1945 P41-F313B Repair Valve Operator 1 13 45 8-26-79 1410 0-30-79 1845 IIPCI Sha f t Replacement 4 10 11-7-79 0530 11-9-79 0045 IIPCI removed for service maint. I 19 25 1-22-80 0660 1-22-80 1135  !!PCI & RCIC INOP 5 25 N

5-30-80 0645 5-21-80 0240 IIPCI taqged for maintenance 10 55

{

7-12-60 0815 7-12-80 1225 IIPCI INOP isolated on 4 10 E

m 111 ambient temp. N 3*

Table A : SYSTEM COMPONENT OUTAGES FOR HATCH UNrr 1 System: Iligh Pressure Coolant Injection (IIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 7-25-80 1830 7-28-80 0445 IIPCI was removed for overspeed 2 10 15 test per MRN1-80-3933 and IINP-1-5289 8-18-80 0400 0-18-80 2145  !!PCI on auto initiation, 'solated 17 45 within a few se.conds after start 9-19-80 1940 9-19-00 2050 Perfor1ning IINP-1-3302, the min 1 10 y flow valve failed to close 1

9-19-80 2140 9-20-80 2020 IIPCI tripped on 111 steam line AP 23 40 when attempting to start system N

i:O a

e i Table B : SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 1 System: Automatic Depressurization System (ADS)

Outage in Effect Outage Terminated Total Time Date. Time Date Time Cause Days Hours Minutes 12/14/78 1515 12/14/78 1630 ADS Actuation Inqic Test 1 15 Y,

u i:O a

a 3'

1 I

Table C : SYSTEM COMPONENT OUTAGPS FOR IIATCII UNIT 1 Core Spray System:

Outage in Effect Outage Termina.ted Total Time Date Time Date Time Cause Days llours Minuten 7-4-76 0100 7-4-76 1315 Core Spray Sparger Alarm 12 15 3-4-77 0000 3-4-77 0945 Jockcy Pump "A" Bitrned motor 9 45 3-5-77 0820 3-6-77 1020 Cor e Spray Pump "B" PM's

'(change oil) 1 2 8-24-77 1050 8-24-77 1635 Repair Seal 5 45 5-5-78 2056 5-6-78 0045 Core Spray Pump Insp. "A" Faulty Pump control switch 1 59 8-12-78 9-15-78 E21-C002 (Core Spray) ACB's burned up 3*

9-16-78 9-16-78 E21-C002A ACB OL's burned up <1* y 9-18-78 N

9-28-78 E21-C002A ACB OL's burned up 10* $

10-1-78 Y

10-5-78 E21-C002A ACB OL's burned up 4*

• Estimate

. .~

Table c : SYSTEM COMPONENT OUTAGES FOR HA'ICH UNrr 1 System: core Spray Outage in Effect Outage Terminated Total Time Date Time Date Time Causa Days Hours Minutes 3-19-79 0740 3-19-79 1345 PM on Core Spray "A" Motor t> 5 8-15-79 1440 8-29-79 0730 Core Spray "A" Jockey Pump 7 7 30*

12-27-79 1300 1-1-80 2145 In0P A Core Spray loop to allow 5 18 45 maint. to repair E21-F006A test-able check valve (it sticks) 5-5-80 0852 5-5-80 1123 1E21-C001A Core Spray pump tagged 2 21 Y for PM w

5-6-80 0950 5-6-80 1140 Performing yearly PM on motor per 1 50 liNP-1-6601 8-16-80 0530 8-16-80 2230 Maint repair valve-1E21-F3001B 17 11-7-80 1325 11-7-80 1520 lE21-C001A "A" Core spray pump 1 55 would not meet accepted criteria N

n k

a re

~ _ _ _ _

• Note: Unit in cold shutdown until 8/22/79

Table D: SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: Residual lleat Removal (RIIR) System (LPCI) an1 Containment Cooling Mode Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 5-l-76 1231 5-1-76 1R38 "A" EllR Inop Reset phase relay 6 6 5-8-76 0630 5-9-76 0840 To repair pump seal IbSWP 2 10 6-3-76 0000 6-3-76 1345 RIIR Icop "A" to repair Ell-F060A 13 45 7-15-76 1000 7-15-76 1045 Rated Flow Test 45 y 7-20-76 1710 7-20-76 2255 RIIR Iligh flow switch failure 5 45 En 8-28-76 0835 8-28-76 1815 To repair relief valves 10 30 9-22-76 10-3-76 1545 ID PSW Pump INDP tagged out, repairin1 shaft busing blow seal operable 9-24-76 0144 9-25-76 2015 See SCRArt report 76-22 1 5 15 Surveill.mce test 2-17-77 1800 2-19-77 0030 RilR SW Div. I Sys-Out of service 1 6 30 2-19-77 0040 2-19-77 1436 RIIR SW Div. II Sys-Out of service 12 56 5 3-5-77 0650 3-5-77 1035 RIIH Div. I out of service PM's 3 45 chanqe oil e

E

Table D: SYSTEM COMPONENT OUTAGES FOR IIATCH UNrr 1 System: Residual lleat Removal (RJIR) System (LPCI) awl Cont ainment Coolin<i Pkwle Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 3-5-77 1105 3-5-77 1403 RIIR Div. II otit of service 3 56 PM's change oil 5-27-77 0615 5-27-77 2000 Replace blanks in FDC & RIIR cross 14 45 ties RIIR 'B' loop 6-2-77 6-22-77 RIIR System INOp 18 10 Y 7-19-77 7-20-77 1640 RilR pump oil change 1 55 e

7-20-77 0630 7-20-77 1055 RilR pump oil change 4 20 8-14-77 2045 8-16-77 1027 RIIR 'B' Inop Sensor level Switch 13 42 steam cowlensing MOD. out of service 9 0745 8-24-77 1050 8-24-77 1653 Ell-C00ln Repair Seal SW Pump 6 30 6-13-78 1050 6-13-78 1630 Ell-COOlA (unplug cooling line) 6 RIIR SW Pitmp 6-14-78 6-14-78 E11-C001A N A RIIR SW Pump tinstop motor cooler <l* $

7-18-78 0015 7-18-78 1430 E11-C001A 14 15 $

RIIR SW Pitmp PM "

• Estimated

Table D : SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 1 System: Renidual lleat Removal (RIIR) System (ILPI) and Containment Cooling Mode Outage in Effect Outage Terminated Total Time Date Time' Date Time Cause Days Hours Minutes 8-3-78 R-4-78 1225 Ell-C002C PM 4 30 1-31-78 0745 2-4-78 2340 A PJIR SW Pump 4*

To replace seal water line 2-26-78 0755 2-26-78 1410 Tagging I!IIR System II for Maint. 6 15 MR78-631 and DCR 76-75 1-14-79 0440 1-5-79 0840 y A Install orifices in RIIR SW Sys. 1 4

$ 1-27-79 0630 1-31-79 0600 "A" loop RIIR loop LLRT Ell-F015A 3 23 8-12-79 1300 8-12-79 1630 RilR - Shutdown cooling repair 3 30 El1-F029 8-12-79 0935 8-12-79 1405 RIIR SD Cooling made out of 3 30 service for maintenance to repair Ell-F029 8-19-79 1705 8-19-79 2230 RilR & PSW out for divers 5 25 9-24-79 0815 9-24-79 1615 IEll-COO 2 fo.- PM 8 g 0

a a

• Estimated

Table D: SYSTEM COMPONENT OUTAGF3 FOR HATCH UNrr 1 System:_.Espidual 11 eat Removal (RIIR) System (wCI) arul Containment Cooling Mode Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 9-27-79 0645 9-27-79 1405 1F.ll-C00.'D for Pf1 7 20 12-11-79 2200 12-13-79 2359 El]-F015n Iraks by 2 1 59 12-1?-79 0945 12-12-79 1125 PSW Pitmps "n" If10p and "n" RIIR 1 40 loop in operation all 3 diesels must be operable "C" diesel generat.or Ifl0P due to fuel oil y storage tank oil specifications

[ out of liinits 2-7-90 0430 2-7-80 1520 lEll-C001D Maint. Install 10 50 strainers 4-14-80 0840 4-14-80 0915 IR-24-SO10n was de-energized 35 while IR44-S003 was tripped, UKR on inverter output would not open so alternative supply to S0188 could be closed 4-22-80 0730 4-22-80 1350 Tagged out "B" RIIR pump for 6 20 maint. to perform and change N oil per MR-1-80-942 E o

r

~4-80 1400 5-25-80 1125 1 Ell-F015A & Ell-F017A both 21 25 h

e closed due to valve seat leaking S

+

l l

l l

Table D: SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: Residual licat Removal (R11R) System (LPCI)

Cont ainment Cooling flode Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 7-11-80 2045 7-11-80 2140 LPCI inverter tripped due to 55-III ambient temp in LPCI inverter room 7-31-80 0730 7-31-80 1215 LPCI inverter tripped due to 4 45 over temp 8-8-80 0605 8-8-80 1025 IE11-C0028 & D tagged out PM 4 20 y on IE11-t1040 ISO valve b

8-8-80 0740 8-8-80 1025 IltIP-1-3162 RIIR Oper. for "B" 2 45 loop (main) & valve 8-8-80 0740 8-10-80 1525 lE11-F015A Valve IllOP. valve 2 15 45 failed to ormn 10-22-80 1150 11-22-80 1655 IE11-C002C RIIR SW Pump tagged 5 5 out for FM (IIWP-1-6005) 10-2340 1120 10-23-80 1510 ID Rild Pump tagged out for PM 3 50 1E11-COO 2D N

o a

o

+

Table E : SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 1 System: R11R service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days llours Miamtes 6-12-78 21.50 6-14-78 1310 "A" RilR SW Pump 1 15 40 8-12-79 1500 8-22-79 0435 H&D RIIR SW Pump failed rated flow 9 13 35 8-16-79 0600 8-24-79 1400 "A" R'IR Pump did not meet rated 8 8 head 8-20-79 1830 8-24-79 1850 "C" RIIR SW pump did not meet rated 4 10 p hoad 9-7-79 2010 9-9-79 1545 RIIR SW pumps, A, B&D, INOP 1 19 35 1-13-80 2300 1-14-80 0145 (3) RiiRSW pumps found to be INOP 2 45 per IINP-3167 1-14-80 0030 1-18-80 1630 1 Ell "A" RIIRSW pump per IINP-1-3167 4 15 2-5-80 1215 2-5-80 1635 IEll-C001A Maint to install filter 4 20 in cooling II 0 line 2

2-6-80 0610 2-6-80 1025 lE11-C00ln (maint) to install 4 15 filter in cooling 18 0 line :s 2

2-6-80 1035 2-6-80 1710 1 Ell-C001C silt removal modif. 7 25 k

5-15-80 1500 5-15-80 1640 1 "A" RIIR SW pump tagged out for 1 40 !!

cooling water modifications per DCR-80-129, MRN1-80-2026 #

/

Table E : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: RIIR service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 5-15-80 1645 5-15-80 1855 1C RIIR SW pump tagged for maint. 2 10 to perform cooling water modifica-tions per DCR-80-129, MRl-80-2026 and MRI-HO-2454 & IINP-1-lloll 5-16-80 0850 5-16-80 1940 lEll-C001A&C tagged out for 10 50 DCR-80-129 modification of motor cooling 1102 pump INOP per p CL-#1-80-342 h

6 5-16-80 1955 5-17-80 0205 Tagged out 1 Ell-C001 B&D RIIR SW 6 10 pumps motor cooling modifications per DCR 00-129 & IINP l-11011 5-17-80 0205 5-17-80 1100 When clearing clearance #1-80-344 8 55 it was found that nKR for lEll-C001B would not rack in 6-11-80 1350 6-11-80 2200 lEll-C001D INOP, motor burned up 9 10 6-12-80 1950 6-17-80 1420 1 Ell-C001D pump INOP motor has 4 18 30 been removed for repairs 8-7-80 2000 N 8-8-80 0005 "B" RIIR SW flow transmitter 4 5 0 lEll-N007B INOP while perform k liNP-1-3167

a Table E : SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 1 System: RIIR service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Ifours Minutes 9-6-80 1245 9-20-80 0945 RIIR SW Pump IEll-C001D failed 13 21 IINP-1-3167, RIIR pump operability and rated flow pump vibration in the action range (east 2.2 and south 1.05) 10-9-80 1330 10-9-80 1555 Tagged IEll-C0dlA RIIR Service 2 25 water pump, for oil change Y 10-10-80 0710 10-10-00 0950 RIIR SW pump 1-B change oil in 5 , motor 10-10-80 1145 10-10-80 1930 RIin SW 1-C tagged for oil change 7 45 C

n 8

a 3*

t Table F : SYSTEM COMPONENT OUTAGES FOR IIATCil UNIT 1 System: Plant Service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 1-9-76 0530 1-10-76 1600 PSW Div. II 1 8 30 1-26-76 0600 1-26-76 0820 "C" PSW Pump DCR on Min flow 2 20 valve 2-8-76 0315 2-18-76 1420 "C" PSW Pump INOP, Maintenance 10 10 50 5-6-76 Div I "C" PSW, Maintenance 6 4

m 5-15-76 Div II "n" PSW, Maintenance b 30 5-16-76 5-19-76 Div I "A" PSW, Maintenance 3 18 5-21-76 Div I "D" PSW, Maintenance 14 7 8-4-76 2315 8-5-76 0150 "n" PSW, Maintenance 2 35 8-10-76 0740 0-10-76 1330 "C" PSW, Maintenance 5 50 8-20-76 0315 8-22-76 1650 "B" PSW, Maintenance 2 13 35 9-22-76 2230 10-3-76 1545 "D" PSW, Maintenance 16 50 N 10-1-76 0000 10-3-76 1545 Div II PSW, Maintenance 2 15 40 11-12-76 0715 11-20-76 1435 Div I PSW, Maintenance 8 7 20 $

p 4

l i Table F : SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 1 l

System:_ Plant Service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 2-15-77 1935 2-17-77 0340 PSW Div II B&D Pump 31 40 2-16-77 1430 2-17-77 0215 Service Wat er out for Reinforce- 11 45 ment parts 2-17-77 1230 2-18-77 0150 PSW Div I A&C Pump 13 20 5-28-77 0910 5-29-77 0710 PSW Div I, Maintenance 21 40 T 8-12-77 0435 8-12-77 0600 "D" PSW, Maintenance 1 30 U

8-18-77 0435 8-18-77 1725 "D" PSW, Maintenance 8 35 8-29-77 0400 9-4-77 1415 "D" PSW, Maintenance 10 45 9-16-77 0200 9-26-77 1000 "A" PSW, Maintenance 4 55 10-9-77 1130 10-09-77 2205 "A" PSW, Maintenance 11 25 10-24-77 0545 10-30-77 1040 "B" PSW, Maintenance 4 35 10-30-77 1800 11-1-77 1035 "C" PSW, Maintenance 1 16 35 11-2-77 1330 5

11-2-77 1555 "A" PSW, Maintenance 2 25 $

o 8

n

/

l Table F : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: Plant Service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutess 2-21-78 1050 2-21-78 1430 PSW pump 2D out for PM 4 3-4-78 0940 PSW tagged out for ACT #5, 10, 11 3-30 78 1525 1 C PSW pump racked out to do maint. on BKR.

4-21-78 0800 4-21-78 1000 C PSW pump leak on Main Flow Line. 5 4,-21-78 1000 4-21-78 1300 B PSW pump inop 2 6-7-78 0615 6-7-78 1430 A&C PSW pump inop for operability 8 15 test.

6-9-78 2230 6-13-78 1650 PSW Pump D (P41-C001D) will not 3 18 20 pump.

6-15-78 053o 6-19-78 0812 P41-D104A PSW to Air conditioning 2 2 42 6-19-78 0940 6-19-78 1340 P41-D104H PSW to cir. Air Cond. 4 7-20-78 0900 7-26-78 1930 P41-C001A low flow. PSW pump 6 16 30 ,

7-22-78 7-26-78 P41-C001A PSW Pump (I,ow flow r"t 4* =

8-4-78 0655 8-4-78 liS5 pump)

ID PSW Pump INOP 6 fg rt I

Table F: SYSTEM COMPONENT OUTAGES FOR HATCII UNIT 1 Plant Service Water System System:

s Outagu 8. ".ficei Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 10-5-78 10-6-78 P41 - F313 Repair discharge line 1*

water leaks.

10-10-78 0230 10-11-78 1825 P42 - C002 Stand 1>y PSW Pump If30P 1 12 f

4-10-79 05:0 4-10-79 1655 "A" PSW Pump P.M. on motor & BKR 11 45 4-7-79 "It" PSW ItJOP 18 30 y

E 23 25

• 5-2-79 0545 5-5-79 0410 "C" PSW 5 yr. P.M. 2 5-2-79 0710 5-9-19 1655 "n" PSW It10P 5 yr. P.M. 6 9 45 1300 H-5-79 1045 PSW Pump Seal Repair 3 21 15 7-31-79 11-2-79 0930 11-2-79 2355 IG PSW Pump to Maint. Replace 14 25 Dad Seal 11-14-79 0145 11-14-79 2000 1D SW Pump IllOP Repair Shaft Seal 18 15 11-21-79 1110 11-26-79 1650 PSW Pump is not pumping and 5 5 40 g pulling less than rated amps g h

11-22-79 0430 11-22-79 0'i00 PSW Pump A failed to pass II13P 30 @

rt 3182 rated flow i

Table F: SYSTEM COMPONENT OUTAGES FO:t IIATCH UNIT 1 System: Plant service water system Outage 'n Effect Outage Terminated Total Time ,

Date Time Date Time Cause Days Hours Minutes 11-22-79 0430 11-22-79 0600 PSW Pump IC failed to pass IINP 1 30 3182 11-22-79 0430 11-22-79 0500 Ar.C PSW Pumps failed to pass 30 IINP-1-3182 12-11-79 2125 12-13-79 1000 PSW "B" failed operability test 1 1 25 Y

a M

i:o e

o

t .

Table F : SYSTEM COMI'ONENT OUTAGES FOR IfATCH UNIT 1 System: Plant Service Water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 12-16-79 1450 12-23-79 1500 Standby PSW Pump & IP41-C001D 7 10 PSW Pump If30P 12-16-79 1450 12-10-79 1100 Standby PSW pump, PSW pump & 10 21 10 IC D/G being ItJOP 12-16-79 0225 12-23-79 1500 D PSW pump I!10P for Maint. 7 12 35 9 12-16-79 1140 12-17-79 0415 D PSW Pump ItJOP, C D/G failed to 16 15 g start 12-23-79 1530 12-24-79 0135 1D PSW pump INOP for overhaul 10 5 0 1450 the standby PSW pump If10P tripped during, IfrIP-1-3001 unit placed in cold S/D @ 0415 12-24-79 0135 12-28-79 1625 Standby PSW pump IrJOP tripped 4 14 50 during Sury, Iff4P-1-3801 IP41-C002 l-14-80 0920 1-22-80 1745 Tagged P5W pump for maint. 8 8 25 1-14-80 1420 1-18-80 1530 Pailure l it PSW pump to pass IttiPI- >

4 1 10 g 3182 & standby pump ItJOP $

$5 8

f Table F : SYSTEM COMPONENT OUTAGES FOR IIATCil UNIT 1 System: Plant Service water System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Day I Hours Minutes 2-4-80 1021 2-4-80 1620 Starpiby Plant SW pump INOP due to 6 1 electrical control power not being Class E.

2-18-80 2100 2-19-80 0025 1P41-CO.01A PSW pump INOP per 3 25 y llNP-1-3182 0

2-19-80 0830 3-11-80 2110 1P41-C001A for maint. 21 lb 50 2-26-80 2015 2-26-80 2207 Standby PSW pump ItOP after 1 52 HNP-1-380L while PSW pump was INOP 2-29-80 0445 2-29-80 1330 1D PSW pump repair seal water leak 8 45 2-29-80 1140 2-29-80 1720 1C D/G INOP & PSW pump INOP 5 40 2-29-80 0445 2-29-80 1330 1D PSW pinnp to repair water seal 8 45 leak while lA PSW PUMP IS INOP 5-8-80 1215 5-8-80 1615 PSW Pump 1P41-C001C to maint to N 4 g change ofL g

5-9-80 0845 5-9-00 1000 IP41-C0018 PSW purp for maint. $

I 15 rt

Table F: SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 1 System: Plant Service Water System Outage in Effect Outage Terminated Total Time Dpte Time Date Time Cause Days llours Minutes 5-9-80 1215 5-9-00 .1340 1P41-C001D for PM 1 25 5-9-80 2110 5-16-80 1930 1HPSW pump failed to pass pump 6 22 20 operability HNP-1-3182 5-22-80 0530 5-22-80 1230 1P41-C001D PSW pump for maint. 7 6-30-80 1125 7-4-80 1220 Standby PSW pump INOP to repair 4 1 5 Seal and Hearing T 8-19-80 0445 8-19-80 1500 A PSW pump Leaking Seal 10 15 U

9-10-80 0545 9-28-80 1315 1A PSW pinnp for shaf t seal repair 18 7 30 9-9-80 0430 9-9-80 1200 ID PSW pump IMOP to repair seal 7 30 leak 10-11-80 0415 10-21-H 0 1500 1P41-C001C, IC PSW pump tagged out 10 11 5 due to vibration N

i:

O 8

e

9 4

Table G: SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days liours l Minutes 3-5-76 0550 3-15-76 2206 Mod to coolant jacket system 16 44 6-4-76 1200 6-4-76 2000 1 "B" D/G Run Pre-op on batteries 7 30 6-7-76 0800 6-7-76 1200 hepair Fuel Injectors 4 6-26-76 2010 6-26-76 2215 Tripped on Emerg. ENG Shutdown 2 5 y 1 "C" D'/G 6-27-76 0730 6-27-76 1336 Trip switch on high lube oil 6 6 temp 1 "C" D/G 8-5-76 0045 8-5-76 1310 Supply HKR tripped 12 25 8-26-76 0652 8-26-76 1900 Maintenance- change oil 12 8

, 8-27-76 0605 8-27-76 2210 Maintenance - change oil 16 5 8-29-76 0900 8-29-76 2130 D/G 1 "C" D/G Batteries pilot cell low specific gravity 12 30 10-5-70 0845 10-5-76 1435 1 "C" D/G Fix fuel line 5 50 11-6-70 0705 11-6-76 1520 1 "C" D/G Maintenance 8 15

{

g rt 11-25-70 0925 11-25-76 1550 Maint on lube oil pump 6 25 >

d Table G : SYSTEM COMPONENT OUTAGES POR IIATCll UNIT 1 Die 9el Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 12-6-76 0740 12-6-76 2150 Inspect Air Blower 14 10 12-6-76 2315 12-7-76 1740 Inspect Air Blower 18 20 12-7-76 2330 12-8-76 1250 1 "C" D/G Inspect air blower 13 20 12-8-76 0000 12-8-76 1250 Inspection 1 "B" D/G 12 50 12-18-76 0840 12-18-76 1225 Mainteriance 1 "A" D/G 3 45 2-6-77 0700 2-8-77 1115 Service water out of service 'IC' 2 4 15 2-17-77 1231 2-10-77 1500 S'erv. water out of service '1C' 14 15 2-26-77 1215 2-26-77 1545 Repair oil leak 'IC' 3 30 5-23-77 1243 5-23-77 1600 INOP Surveillance Test '1A' 3 17 5-24-77 0520 5-24-77 1210 Cam Inspection '1H' 6 50 5-24-77 1345 5-24-77 1733 *1C' D/G Inspect Cam 3 45 6-7-77 1430 a 6-9-77 1500 Cam-shaft inspection '1A' D/G 2 30 g 6-10-77 0620 6-11-77 1515 'IC' D/G Inspect cam 32 55 6-13-77 1045 6-15-77 2100 N

'1C' D/G Inspect cam 2 12 15 3

4 Table G : SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 6-13-77 1430 6-15-77 2130 camp Inspection '1B' D/G 2 7 7-16-77 0655 7-16-77 1755 'C' D/G Out of service - Test PM'<

and test Cal. 16 7-23-77 0612 7-23-77 1640 PM's Change oil '1A' 10 28 7-30-77 0530 7-30-77 1845 Change oil (PM) '1B' D/G 13 15 y 8-6-77 0610 8-6-77 1040 Droken timer '1A' D/G 4 30 8-12-77 0555 8-12-77 1726 Voltage Fey Problems 'lA' D/G 11 30 8-18-77 1350 8-22-77 1930 Bad Bearing '1B' D/G 4 5 50 9-1-77 9-1-77 D/G Out 3 10 9-2-77 2330 9-3-77 1740 Rebuilding pump '1A' 18 15 10-4-77 1245 10-4 1515 INOP for test shop 'lA' D/G 2 30 10-5-77 10-5-77 D/G Out 9 30 y 11-20-77 11-20-77 D/G Out ft 7 45 E 11-26-77 0850 11-26-77 1307 E Faile'l to start '1A' D/G 4 43 12-6-77 1430 12-9-77 1940 Pre-op for Unit II 'IB' D/G 3 5 10 >

Table G : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 12-17-77 0234 12-17-77 1210 Out of service for Servomotor Replacement 'lB' D/G 9 24 1-16-78 1430 1-19-78 2100 R43-8001H - Maint inspecting generator hearings 3 6 30 3-17-78 0955 3-17-78 13]O R43-D/G IB replace D/G battery chargers 3 15 y 3-25-78 0800 3-25-78 1205 R43-SOOlB D/G tagged for pre-op 4 5 6-9-78 1030 6-13-78 1715 R43-500B D/G Repacking governor 4 16 45 6-13-78 1346 6-13-78 1415 B D/G Supply breaker to bus. 29 6-14-78 1010 6-14-78 1415 A D/G Output to BKR 3 25 8-5-78 1015 0-5-78 2310 R43-5001n PM & Investigate Pre- 12 55 Lube Problem 8-14-78 0600 78 1825 IB D/G out for PM 12 1 25 9-2-78 0600 9-2-78 1335 R43-S001C D/G INOP 8 y 9-27-78 0110 N 9-28-78 1645 R43-C001C 1B D/G (Air compressor $

Leaking Relief Valve) 16 45 [

1425 a 10-28-7f 10-28-78 2000 R43-5001C Hlown oil pressure 5 35 "

gauge (repaired) >

l Table . G : SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 11-12-70 0630 11-12-78 1700 R43-S001B (operable 01700)DYB (test shop) MR78-32474-3654 10 30 2-4-78 0730 2-4-78 1155 B D/G INOP for test shop - to calibrate SW flow 4 25 y 2-24-78 1200 2-24-78 2050 B D/G to run pre-op for PSh pump 8 50 g for B D/G 3-26-78 1130 3-26-78 1600 Tagged 1 C D/G for IINP-1-3804 4 30 4-1-78 0630 4-2-78 0620 B D/G INOP 23 50 4-28-78 1245 4-28-78 1730 1 C D/G IMOP to Mair.t. far walk-on Relief Valve For 1-C-2 pump 4 45 5-18-78 1430 5-l'8-78 1610 IB D/G INOP 1 40 5-22-78 1350 5-22-78 2130 1 B D/G ItIOP to preform IINP-2-380-l 7 40 p 5-24-78 1450 N 5-25-78 0150 B D/G tagged out to support UNITS g LSFT on ECCS 11 g' 5-29-78 0925 0145 $

5-30-78 IB D/G INOP for units to work on 16 20 **

PM. >

Table G : SYSTEM COMPONENT OUTAGES FOR HAEH UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 6-4-78 0030 6-4-78 2025 B D/G If30P to perform MIt-1-78-1731 19 SS 6-4-78 2345 6-5-78 1945 1A D/G INOP 20 7-2-78 1650 7-3-78 0335 B D/G It10P temp switch broke 10 40 7-28-78 0845 7-28-78 1645 1C D/G INOP 8 9-28-78 0248 9-29-78 1805 1A D/G INOP 1 15 17

$ 10-30-78 0725 10-30-78 1300 B D/G Tagged INOP 5 . 'i 1-6-79 0417 1-6-79 0611 Itopair 3/waf lamp control valve 1 56 1-9-79 Pepair relief valve '1A' D/G 1-16-79 Renair 'B' pump D.G 8-9-79 0400 0-9-79 1745 1R D/G Out of Service for maint. 13 45 9-18-79 0130 9-18-79 2130 A D/G PM 20 1:

O 8

4 3'

Table G: SYSTEM COMPOI,ENT OUTAGES FOR IIA'ICI UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 10-11-7') 0315 10-12-79 2000 Made "1C" D/G Irior to perform 1 16 45 DCR-77-200 & yearly PM 10-16-79 0420 10-16-79 0801 "B" D/G IrlOP Maint. to paint 3 40 exhaust 10-17-79 0755 10-1.7-79 1730 IB D.G out for maint to paint 9 3L p exhaust 1ine 10-22-79 0315 10-27-79 1300 1C D/G IrJOP for Maint. to repair 5 7 45 Discharge check Valve (2P41-F311C)

.10-22-79 0810 10-22-70 1705 IB D/G out for PM 9 10-26-79 0655 10-26-79 1600 1A D/G tagoed for maint to paint 9 5 exhaust header 11-2-79 2000 11-3-79 0150 1B D/G Tripped during sury. due tc 5 50 2P41-C002 11-21-79 1950 12-11 ~9 1620 PSW pump failed rated flow 20 18 30 N 2P41-C001D $

if 12-13-79 0730 12-13-79 1830 IrJ0P due to PSW out of service 11 0 et 12-13-79 0730 12-13-79 1830 Failed to start "C" D/G 11

4*

Table G : SYSTEM COMPONENT OUTAGES FOR IIATCil UNIT 1 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 12-16-79 1450 12-20-79 1625 Standby plant service water pump 12 1 35 (2P41-C002) tripped 1-12-80 0790 1-12-80 1305 "1C" D/G for maint. 5 45 1-14-80 0920 1-22-80 1745 Standby PSW pump, to maintenance 8 8 25 to repack it 1-30-00 1130 1-31-80 0530 2P41-C002, standby PSW pump 18 failed IINP-1-3801 D/G manual U start for IB D/G inservice test for standby PSW pump 2-4-80 1021 2-4-80 1620 Standby PSW pump MCC being non- 5 53 Clann E (2P41-C002) 2-26-80 2015 2-26-80 2207 2P41-C002, 1 standby PSW pump 1 52 INOP, failed to pass IINP-1-3801 3-22-80 1213 3-22-80 1715

• IC D/G failed to start 5 2 4-5-80 1930 4-6-80 1030 1 "C" D/G tagged to work on stop 15 >

N 4-15-80 2200 4-16-80 2348 1 "0" D/G tagged out for maint. I 1 48 E elected to perform work on d 2F416ov Huss Ct. Circuits 4-28-80 0430 4-29-no 1500 Taqqed "lC" D/G for PM 1 10 30 #

, e Table G : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 1 System: Dieael Generatorn Outage in Effect Outage Terminated Total Time Date Tiene Date Time Cause Days Hours

- Minutes 4-29-80 0430 4-29-80 1230 "lC" D/G out and performing 8 IINP-1-3162 RIIR Mov, nparability and IEll-F016A wouldn't operate 6-15-80 0030 6-15-80 0740 IC D/G INOP 7 10 6-28-80 1101 6-28-80 1915 IB D/G INOP 8 14 10-1-80 0550 10-1-80 1530 1A D/G INOP for maint. 9 40 E 10-6-80 0330 10-7-80 1740 In D/G Taqqod for PM 14 10 10-28-80 0850 10-31-80 0115 D/G "B" for PM 2 16 15 10-29-80 0930 10-29-80 1740 2P41-C002/lR43-5001B IB D/G INOP 1 55 with standby PSW pump 5

1:

O 8

a

/

., . Attcchment B ATTACHMENT B TO GP-R-33009 DETAILED SL'0:ARY OF ECCS OLTAGES FOR HATCH UNIT 2 (7/1/78 - 12/1/30) f B-1

Tabla A: SYSTEM COr.70NENT OUTAGES FOR HA'IUlf UNIT 2 System: liigh Pressure Coolant Injection OIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 10-22-78 1000 10-23-78 0630 2E41-F001 Motor burned up 21 30 11-18-78 1035 11-18-78 1135 2P41-F303B PSW Screen cleaned I 11-19-78 2240 11-20-78 1700 IIPCI out for DCR 78-436 20 20 7-24-79 0735 7-24-79 1830 2E41-FOO2 valves are closed & 10 55 tagged.for test shop placement 7

of pressure gauge on steam stop valve 7-25-79 1017 7025-79 2325 Maint. to be performed on 2E41- 3 8 FOO1 valve taqqed & BKR tag open also aux oil pump BKR 7-26-79 0755 7-28-79 1840 IIPCI tag.ied out for maint on IIPCI 2 10 turbine stop valve N

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l ..

Table A : SYSTEM COMPONENT OUTAGES FOR IIATCH UNrr 2 System: Ilirih Pressure Coolant Injection (IIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 7-30-79 1350 7-30-79 2140 2E41-FO41 stuck in mid position 7 50 Torus suction-mov.

10-14-79 1650 10-17-79 0340 I.solating IIPCI steam supply and 2 10 50 declarin<I IIPCI INOP due to steam leaks on isolat. ion valves to inlet drain pot'. IlPCI torus suction valve 2E11-FO41 INOP,

, Burned-up motor b

10-18-79 0800 10-18-79 1040 Turned Inwer of f to 2E41-F006 2 40 with valve closed, for isolation of 2H21-I'076A 10-25-79 1307 11-5-79 0525 2E41-F001 valve closed & taqqed 10 16 18 due to 2E41-F002 being INOP.

11-26-79 2200 11-27-79 2130 IIPCI flow indicator 2E41-R613 23 30 INOP, reading <0 when pump was running 11-29-70 1545 11-30-79 0415 Test shop replacing GE555 AP 12 30 :p transmitter with Rosemont 1151 AP h transmitter per DCR-79-463 & o IIPCI auxi1iary oil pump not auto starting also trips BKR f

g to

Table. A : SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 2 System: Ilich Pressure coolant Iniection (itPCI) system Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 12-12-79 0735 12-12-79 1620 IIPCI tagoed oil puinp out for PM 9 15 12-13-79 0420 12-14-79 124R llPCI isolat ed for steam leak repall 1 8 30 2E41-F002 & FOO3 closed & tagged 12-23-79 0410 12-23-79 2050 2E41-C002 IIPCI turbine tagged per 16 40 clearance #2-79'-1043 to change out lube oil 12-24-79 0715 12-24-79 0800 IIPCI uischarge line (pump dis- 45

, charge) not full of water 12-25-79 0935 12-25-79 1115 Steam observed in discharge line 1 40 while venting 12-28-79 0925 12-28-79 1040 2E41-F006 leaking causing vater 1 15 in discharge line to flash to steam when venting line.

12-28-79 0511 12-28-79 0550 Received "IIPCI" suction 45 pressure Ill and upon venting pump discharge line found that >

this was not full of water '

r (caused by 2E41-FOO6 leaking) $

8 a

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l . .-

Table A ,

S.*3 TEM COMPONENT OUTAGES FOR HATCH UNIT 2 System: Itioh Pressure Coolant InjectionHIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hosers Minuten 12-31-79 0005 12-31-79 0032 While perforviing standing order 27 DER 79-64 steam found in IIPCI discharge 1ine 1-17-80 1155 1-17-80 1340 IIPCI " Topaz" inverter failed 1 45 1-18-80 0535 1-18-80 1015 2 E41-K616, INOP, this rendered 1 40 the riow controller INOP 7

• 1-22-80 1145 1-22-80 1305 2E41-K601, to test shop for 1 20 calibration, IIPCI Sq root converter (IINP-2-5213) 1-30-80 1015 1-31-80 2103 2E41-C002 IIPCI , Remove isolation 1 10 12 4-22-80 1900 4-22-80 1910 llPCI and RCIC INOP simultaneously 10 4-22-80 1900 4-24-80 1150 IIPCI INOP due to battery ground 1 16 50 5-7-80 2238 5-14-80 0930 2E41-F006 motor burned up. This is injection insolation 6 10 22 5-30-80 1255 6-5-80 0005 IIPCI INOP Steam leak potentially N breaking down - IIPCI mov. intors. 5 11 10 $

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Table A: SYSTEM COMPONENT OUTAGES FOR HATCH UNIT 2 System: Ifigh Pressure Coolant Iniection (IIPCI) System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 6-26-80 0300 6-27-80 1730 IIPCI INOP to low pump suction 2 14 30 pressure discovered while per-fonning Ilf3P-2-3303J test to CST valve 2E41-F008 failing in open position and min. flow valve 2E41-F012 cycling open & close 7-11-80 0455 7-12-80 0330 Trying to manually start IIPCI 22 35 y and 2E41-F006 would not operate

<n 8-10-80 0745 8-10-80 1150 2E41-F042 IIPCI Suction from 4 5 torus tagged closed to check valve motor, BRK & limit switches 8-27-80 0903 8-27-80 1930 IIPCI removed from service to 10 27 check battery ground 8-28-80 0910 8-20-80 1710 IIPCI removed from service to 8 repair seal waterline leak 9-9-80 0900 9-9-80 1835 IIPCI , RCIC, INOP & CS "B" 9 35 RCIC - Repacking 2E51-F008 IIPCI-2. 5% water in oil CS - tagged out for DCR 9-23-80 0400 9-25-80 1845 IIPCI tagged out for maint. to 2 4 45 repair pump seal

Table C : SYSTEM COMPONENT OUTAGES FOR IIATCII UNIT 2 System: Core snrav System Outage in Effect Outage Terminated Total Tisce Date Time Date Time Cause Days Hours Minutes 9-6-79 1030 9-7-79 1600 "A" Core spray pump 2E21-C001A 1 5 30 tagged out for yearly PM 10-4-79 0100 10-5-79 1010 CS Pirnp In removed for PM 1 9 10 MH2 79-4240 10-23-79 0710 10-23-79 1400 2E11-C002B Pump INOP for PM 7 10 Y 3-2-80 0010 3-3-80 1000 Tagging out core spray loops for

'8 1 9 30 LLIrr clearance sheet NU#2-80-153 and 2-80-154 4-13-80 0445 4-15-80 0235 Ioop Core Spray out of service 1 21 50 w/o LPCI system.

8-5-80 0545 8-5-80 1300 Core Spray pump tagged out for 7 15 PM per MR#2-80-2974 8-16-80 0010 8-19-80 1652 "B" loop core spray tagged out 3 16 42 for 2G51 torus c/v modificationr TR 79-386 9-8-80 0020 9-9-80 1835 Tagged loop B core spray for '

1 18 15 g torus purification modification g

per MR 2-80-2984 and PCR 79-386 o 10-27-80 1103 10-27-80 1330 "B" Core spray for PM 2 27 k

, 11-1-80 1030 11-1-80 1808 "A" loop LfRT 7 38

Table D: SYSTEM COMPONENT OUTAGES FOR HATCH UNrr 2 System: Inw Pressure coolant Injection (LPCI)

Subsystem of the RilR System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 7-21-78 1400 8-3-78 1430 2E11-C001A PJtR Service wtr pump 13 30 maint.

8-5-78 1240 8-28-78 1000 "A" RIIR ht. exch. outlet valve 23 14 40 maint.

10-20-7f 0630 10-20-78 1850 2 Ell-F068 A&C maintenance 12 20 Y.

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Table D,: SYSTEM COMPONENT OUTAGES FOR HA'ICH UNIT 2 System: Inw Pressure coolant Injection ( wCI)

Siibnyst.em of the EHH system Outage in Effect Outage Termirnted 'r atal Time Date Time Date Time Cause Days Hours Minutes 10-8-78 0630 10-9-78 1345 RilR SW pump INOP 1 5 30 11-14-78 1845 11-14-78 2330 Repair 2Hil-F009 4 45 10-24-78 1220 10-24-78 1730 2 Ell-C001C collect new data 5 10 11-16-78 1000 12-1-78 1955 2 Ell-F047A repair 15 9 55

, 11-23-78 2100 12-1-78 2l00 2 Ell-F074R repair motor bad 7 E

12-8-78 0700 12-8-78 0722 R44 I,PCI inverter INOP 22 12-23-78 0740 12-24-78 0630 2 Ell-F075A motor nurned 22 5 10-8-79 0840 10-9-79 0215 2 Ell-C002A tagged out to perfom 17 35 PM 10-18-79 0730 10-19-79 1322 RIIR pump 2C(Ell-C002C) to perfom PM per MR2-79-4246 5 52 11-3-79 2230 11-4-79 0920 Ingic in 2 Ell-F004C intake valve 10 50 closed when 2E11-F006C is open.

But loqic is had E. F006C is y closed and 2 Ell-FOO4C logic ,'!

still thinks its open. 'Ihus, it $

is intlk'd closed preventing [

I,1 CI pump f rom having suction @

source. "

tr

Table D : SYSTEM COMPONENT OUTAGES FOR HATCH UNrr 2 System: inw Pressure coolant Iniection(LPCI)

Subsystem of the RIIR System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 11-6-79 0700 11-6-79 1430 2 Ell-C002D out for yearly PM,  ? 30 change motor oil 11-14-79 1245 11-14-79 1345 LPCI inverter out to replace 2 some blown capacitor fuses 11-17-79 1010 11-18-79 1030 R44-S003 LPCI nverter tripped 2 20 11-18-79 1315 11-18-79 1355 Remova'l of 2R44- 003 PCI 40

$ Inverter 4-24-80 0445 4-24-80 1150 2R440 Inverter (LPCI) out 7 5 of service to investigate possible 125/250 UDC battery ground problems.

5-14-80 1415 5-15-80 1115 RIIR pump 2E11-C002D suction valve 21 2 Ell-F006D and 2 Ell-FOO4D both are closed, will not open.

DRilR pump then racked out to prevent starting with no suction sollice.

10-8-80 0900 10-8-80 1325 2C pump tagged for PM 4 25 h 10-10-8( 0835 10-10-80 1235 2D RilR P/M 4 n

10-15-8f 1230 10-15-80 1440 'n"RllR pump for PM 2 10 to

On Table D : SYSTEM COMPONENT OUTAGES FOR IIATCH UNTI 2 System: Inw Pressure coolant Iniection OrcI)

Subsystem of the RIIR System Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 10-16-8( 0845 10-16-n0 1115 IH in mot.or 2 30 10-31-8( 1600 11-1-80 0205 LLRT on "8" LOOR of RilR 10 5 11-1-80 0400 11-1-80 0920 LLRT 5 . 20 l

11-1-80 1815 11-2-80 0205 "A" loop tagged for ICHT 4 du to 11-7-80 0910 11-7-80 1015 RIIR lit. excha nger outlet tripped 1 5 3-1-80 1030 3-2-80 0015 2E11 "A" of RJ1R tacoed out for 14 as 1.LRT N

1:

o

- 8 a

to

Table F : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 2 System: Plant service Water Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 11-17-78 0825 11-17-78 1800 2 "D" PSW Pump out 7 35 11-2-79 2000 11-3-79 0150 IB D/G Tripped during surv. due 5 50 to 2P41-C002 7-21-79 1630 7-21-79 1935 A vent valve, just down stream of 1 10 30 of 2E11-F060A broke off flush with the main RIIR SW line, 5

forcin9 tag out. of RIIR SW loop

[ while repairs completed 10-13-79 1430 10-13-79 1800 RIIR SW Pump "C" unable to pass 3 30 IINP-2-3167 10-31-79 1900 11-17-79 1730 PSW Pump failed to pass rated 16 22 30 flow 11-1-79 0500 11-1-79 1530 RIIR SW pumps A&C for cleaning of 10 30 coolinc; water line 11-17-80 183n 11-22 no 0220 PSW Pump 2P41-C001R failed rated 4 7 50 flow ,T n

a a

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Table F : SYSTEM COMPONENT OUTAGES FOR IINICH UNrr 2 System: Plant Service Water Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 11-21-80 1950 11-22-79 0220 PSW Pump Failed flow (2P41-C001D) 6 30 11-21-79 1950 12-11-79 1620 PSW Pump failed rated flow 20 18 30 2P41-C001D

,12-13-79 0730 12-13-79 1830 PSW Out of service 11 tz, 12-16-79 1450 12-28-79 1625 Standby plant service water 12 1 35 4

ta pump (2P41-C002) tripped 1-14-80 0920 1-22-80 1745 Standby PSW pump, to maintenance, 8 8 25 to repack it 1-30-80 1130 1-31-80 0530 2P41-C002, standby PSW pump 18 failed IINP-1-3801 D/G manual start for IB D/G inservice test for standby PSW pump 2-4-80 1021 2-4-80 1620 Standby PSW pump MCC being non 5 53 Class E (2P41-C002) 2-12-80 0610 2-13-80 1610 (2 Ell-C001B) RJIR SW pump INOP 1 10 N to repair seal leak k

2-16-80 0530 2-16-80 1700 2E11-C001C tagged to maint to 55 11 30 g PM R!lR SW pump et txt 2-26-80 2015 2-26-80 2207 2P41-C002, 1 standby PSW pump 1 52 THOP, failed to pass IINP-1-3801

l l ,

, Table. F : SYSTEM COMPONENT OUTAGES FOR IIATCH UNIT 2 System: Plant Service water Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 4-15-80 2213 4-16-80 2150 4160 V Itus for maint PSW 2C & 2D 23 30

& standby service II2 0 pump made INOP 5-6-80 1152 5-6-80 2045 Pump taciged for oil change 8 53 5-8-80 0800 5-8-80 1645 Pump tartged for oil change and 8 45 repair 2P41-F330D to 0

5-21-80 1415 5-21-80 2000 2E11-C001B & D RIIR SW pump S - 5 45 out for maintenance to repair Div II air release valve 5-30-80 0500 5-30-80 1645 PSW pumps (2 P41-C001D) tagged 11 45 out for maint. to replace bad seal (pump) - per clearance 2-00-714 6-8-80 0730 6-15-80 1556 RIIR Sw pump 2A (2 Ell-C001A) was 7 8 26 l

made INOP under MR 2-80-24 to remove the motor and replace it on Unit-1"D" RIIR SW Pump g 6-29-80 0955 6-29-80 1410 2P41-C001 A tagged out for maint o

4 15 to perfonn llNP-2-6200 yearly PM fN 6-29-80 0430 6-29-80 0950 2P41-C001C pump tagged out for 5 20 ,

maint. for PM per IINP-2-6200 4

Table F : SYSTEM COMPONENT OUTF'S FOR IIATCH UNrr 2 System: Plant service water Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 8-3-80 0500 0-3-80 1700 RIIR S/W 2C would not trip core 12 spray 9-16-80 1200 9-21-80 1845 Pump BKR was racked out to 4 6 45 investigate trirping problem and unstick discharge check valve 9-23-80 0505 9-23~80 1530 Plant Service water pump 10 25

, 2P41-C001D tagged for maint.

4 us repair seal leakage 10-29-80 0930 10-29-80 1740 2P41-C002/1R13-5001B IB D/G INOP 1 55 with standby PSw pump e$

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l Table G : SYSTEM COMPONENT OUTAGES FOR IIATCII UNrr 2 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minute.s 9-14-78 0520 9 14 78 1015 2C Air Comp. & R43-C001A 4 55 9-14-78 1220 9-15-78 0730 2A D/G and Comp. INOP 19 10 9-16-78 1135 9-16-78 1610 2A D/G Air Comp. 5 30 y 10-28-78 0630 11-13-78 1240 2C D/G 'Failel to start 15 6 10 8-1-79 0215 8-2-79 1245 2A D/G Marie INOP for implementa- 1 3 5 tion of DPR-79-198 8-9-79 0400 8-9-79 1745 D/G out of service for maint. 13 45 R-27-79 1230 8-27-79 2230 RIIR SW Subsystems INOP loss of 10 cooling water to pump (B&D Pump) 10-22-79 0515 10-27-79 1300 C D/G INOP for Maint. to repair 5 7 45 Discharge check valve (2P41-F311C) g et E

if a,

tD

9 Teble G : SYSTEM COMPONENT OUTAGES FOR HATCH UNfr 2 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 10-23-79 0746 10-23-79 1610 D/G Maint. .to paint exhaust 9 10-24-79 0905 10-24-79 2200 2C D/G out Maint. to paint 13 exhaust line to-25-79 0725 10-25-79 1930 2A D/G out Maint. to paint 12 exhaust line W 11-13-79 2213 11-14-79 0530 Performing Hf1P-2-3801 2C D/G 7 17 y after 11 minutes starting time tripped on high crank case pressure on (2) start attempts 12-28-79 0510 12-28-79 1230 Running Ilt1P-2-3801 D/G 2A failed 7 20 to start 1-2-80 0530 1-4-80 1520 2A D/G tagged for maint. 2R43-S00 A 2 9 20 1-23-80 0820 1-25-80 1755 2R43-S001C 2C D/G tagged out to 2 17 35 maint. to perform MR2-79-5384, 2-79-5670, 2-79-5856, 2-80-406

t*

1-30-80 1930 1-30-80 2230 IB D/G failed to demonstrate 3 Divisional PSW pump interlocks O to in D/G within 8 hrs y,

w

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l A

Table G : SYSTEM COMPONENT OUTAGES FOR IIATCII UNTI 2 System: Diesel Generators Outage in Effect Outage Terminated Total Time Date Time Date Time Cause Days Hours Minutes 2-23-80 1105 2-23-80 1410 2R43-S001C 2C D/G a pot fuse 3 5 blew, system [ossible was not grounded 6-28-80 1101 6-28-80 1545 While performing IINP-2-3801 on 4 44 D/G it t ripped Y 9-21-80 0840 9-21-80 1145 Diesel' t aken out of service, 3 5

$ special inspection per Fairbanks Morric Co. notification to NRC of possibic wire connection problems 10-3-80 0425 10-3-80 0820 2A D/G removed from service, 3 55 per MR-2-80-3824 to check coupling alignment 10-3-80 0830 10-3-80 1115 Removes 2C D/G irom service 2 45 N

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_ _ . _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ - __