ML18046B208

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Forwards Data for 1976-80 Re Diesel Generator Operation, Diesel Generator Down Time & Diesel Generator Mod,In Response to NRC 810720 Request Re Station Blackout, Unresolved Safety Issue A-44
ML18046B208
Person / Time
Site: Palisades, Big Rock Point  File:Consumers Energy icon.png
Issue date: 01/07/1982
From: Bordine T
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR GL-81-04, GL-81-4, NUDOCS 8201130457
Download: ML18046B208 (35)


Text

{{#Wiki_filter:**--* __ ______ General Offices: 212 West Michigan Avenue, Jackson, Ml 49201 * (517) 788-0550 January 7, 19&-{

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Dennis M Crutchfield, Chief Operating Reactors Branch No 5 Nuclear Reactor Regulation US Nuclear Regula.tory Commission Washington, DC 20555 DOCKET 50-155 - LICENSE DPR-6 ~ BIG ROCK POINT PLANT DOCKET 50-255 - LICENSE DPR PALISADES PLANT - STATION BLACKOUT - UNRESOLVED SAFETY ISSUE A-44 NRC letter dated July 20, 1981 and entitled "Information Request Regarding Station Blackout Unresolved Safety Issue A-44, Big Rock Point and Palisades", requested Consumers Power Company to complete a questionaire covering histori-cal data for the years 1976-1980 pertaining to Diesel Generator operation, Diesel Generator down time, and Diesel Generator modification. The letter also requested Consumers Power Company to review LER documentation presently docketed for Palisades and Big Rock Point regarding station blackout. Our letter of November 23, 1981 identified the need for additional time to complete the requested information. This letter encloses the requested infor-mation. Completed tables for both the Palisades and Big Rock Point Plants are included. The information provides a summary of our detailed log sheets, maintenance orders, equipment outage records, surveillance test records and

  • .j facility change records. The tables for the Palisades Plant and Big Rock Point Plant are provided as attachments 1 and 2 respectively.
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  • Thomas C Bordine cG. c.rt/L Staff Licensing Engineer CC Administrator, Region III, USNRC NRC Resident Inspector-Big Rock Point NRC Resident Inspector-Palisades Attachment !~Palisades Plant Attachment 2-Big Rock Point Plant oc0182-0006b142 8201130457 920107 PDR ADOCK 05000155 F PDR.
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Attachment 1 Palisades Plant Diesel Generator Data 1976 - 1980

Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Palisades TABLE l Calendar Year 1976 Unit No 1-Reason for DG Number Number Percent DlU'ation of Run Operation & Scheduled DG of of Loading of. Before Stop for Identification of Failure Duration of Run No Starts Faillll'es DG (kW) Each DG Failure (Refer to Attached LERs of 'l'able 3) Tech Spec Required Test Monthly Test M0-7 1 12 0 100% 6 Hours 1 Start/Test 2 12 0 100% Refueling Outage Test R0-8 l 1 0 100%

  .2: 30 Min 1 Start/Test                2    1              0        100%

DG Actual Demand Starts Hot for

   'l'esting Miscellaneous Tests (Specify Type)

Test Starts After Maintenance 1 b 0 Not Avail (Duration Not Available) 2 5 0 Not Avail

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Enclosure l - Page 1 DIESEL GENERATOR OPERATIONS DATA Plant Name Palisades

         ~'ABLE 1                                                Calendar Year 1977                    Unit No ~~~~~~~~-

Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Monthly Test M0-7 1 12 0 BO Min @100%

                                                                !330 Min @40%

6 Hours 1 Start/Test 2 12 0 !30 Min @100% B30 Min@ 40% DG Actual Demand Starts Uot for Testing Loss of Offsite Power \ '* 1 3 0 100% I

                         >      2*        3                0         100/:>

I Miscellaneous Tests (Specify Type) Test Starts After 1 6 0 Not Avail Maintenance (Duration Not Available) 2 8 0 Not Avail

Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Palisades TABLE l Calendar Year 19-1§ Unit No ~~~~~~~~ Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Monthly Test M0-7 1 12 0 30 Min @100: 6 Hours 330 Mine!! 40 1 Start/Test Monthly Test M0-7 2 12 0 30 Min @! 1 oo: 6 Hours ljjU M1n ~ 4Ui l Start/Test Refueling Outage Test R0-8 j_ j_ 0 100~ ~ 30 Min 2 1 0 100% 1 Start/Test i DG Actual Demand Starts Hot for I Testing Miscellaneous Tests (Specify Type) ei Test Starts After 1 q 0 Not Aw1i 1 Maintenance (Duration Not Available) 2 6 0 Not Avai.l

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Enclosure l - Page 1 DIESEL GENERATOR OPERATIONS DATA Plant Name Palisades TABLE 1 Calendar Ye~r 19~ Unit No ". Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading .of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Monthly Test M0-7 l 13 1 30 Min 'IT"O-Oi 1 Failure to Start LER 2 6 Hours 330 Min@ 40' 1 Start/Test 2 12 0 30 Min @100 330 Min@ 40 I f-' DG Actual Demand Start.s Uot for . Testing Miscellaneous Tests (Specify Type) Test Starts After 1 15 0 Not Avail Maintenance (Duration Not Available) 2 11 0 Not Avail

Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Palisades TABLE l Calendar Year i980 Unit No ~~~~~~~~ ,, - Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Monthly Test M0-7 l 12 0 130 Min@ 100% 6 Hours 1330 Min @ 40% l Start/Test 2 12 0 130 Min ('I! 100% B30 Min @! 40% Refueling Outage Test R0-8 l l 0 100% ?: 30 Min 1 Start/Test 2 1 0 100% DG Actual Demand Start.s Hot for Testing Miscellaneous Tests (Specify Type) Test Starts After 1 13 0 Not Avail Maintenance (Duration Not Available) 2 15 0 Not Avail

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Enclosure 1 Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name . . ;. . Pa;.;.;1'°'""1=*s;;. . ; a.; . ; d; .; ;e""'s_ _ TABLE 2 Calendar Year 19_1_6 Unit No - - - - - - - - Hours of Downtime Reactor Shut Down Reactor Not Shut Down DG # DG # DG # DG H DG H DG H DG # DG II DG # DG # Reason for Downtime 1 2 1 2 Comments Scheduled Maintenance 0 8 22 0 Preventive Maintenance 0 0 75 71 Time DG Is Unavailable for Emergency Service Because of Required Tests j'

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 2 Calendar Year 1977 Unit No ~~~~~~~~ Hours of Downtime Reactor Shut Down Reactor Not Shut Down DG # DG # DG # DG # DG # DG # DG U DG # DG # DG # Reason for Downtime 1 2 1 2 Comments Scheduled Maintenance 0 0 11.5 36 Preventive Maintenance 16 8 8 32 Time DG ls Unavailable for* Emergency Service Because of Required Tests if:.

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Palisades

            'l'ABLE 2                            Calendar Year 191§.                   Unit No       ~~~~~~~~-

Hours of Downtime .. Reactor Shut.Down Reactor Not Shut Down DG # DG # DG H DG II DG # DG # DG/ DG # DG # DG # Reason for Downtime 1 2 1 Comments Scheduled Maintenance lb 91 1J 0 Preventive Maintenance 0 0 38 24 91 I f ' I Time DG Is Unavailable for Emergency Service Because of Required Tests

Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 2 Calendar Year 19'79 Unit No ~~~~~~~~ Hours of Downtime Reactor Shut.Down Reactor Not Shut Down DG # DG # DG # DG # DG # DG # DG # DG II DG # DG # Reason for Downtime 1 2 1 2 Comments Scheduled Maintenance 36 39 104 90 Preventive Maintenance 72 146 21 0 Time DG Is Unavailable for Emergency Service Because of Required

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        '.!'ABLE 2                                                   Calendar Year 1980                       Unit No ~~~~~~~~
                                                                                                                                         ! I Hours of Downtime Reactor Shut Down                                 Reactor Not Shut Down DG # DG # DG # DG # *na # DG # DG' # DG II DG # DG #

Reason for Downtime 1 2 1 2 Comments Scheduled Maintenance 124 183 32 65.5 Preventive Maintenance 13 19 57 63 Time DG Is Unavailable for Emergency Service Because of Required 'l'ests

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Enclosure 1 - Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 3 Calendar Year 19 76 Unit No Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency* con<li-(Refer to Attached Total Trouble- Delivery, Repai:r/ tions, please explain here. Refer to attached LER Abstracts) Hours shooting Etc Replace LERs or the failures listed in Table 1. 9 0 Tech Spec violation only. No failure occurred. e" I i-

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Enclosure 1 Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Palisades

               'l'ABLE 3                              Calendar Year 19f.1._                  Unit No     ~~~--~~~

Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi-i (Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached i' LER Abstracts) Hours shootini;!; Etc Replace LERs or the failures listed in Table 1. 6 0 Tech Spec violation only. No failure occurred. . 7 8 0 0 Tech Spec violation only. No failure occurred. Only 1 of 2 air motors was disabled on one DG.

Enclosure l Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 3 Calendar Year 191§_ Unit No ------- LEH Abstract No Downtime Hours Comments - If any of the reported failures would not Parts, have been a failure under emergency condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Ret'er to attachecl LEH Abstracts) !lours shooting Etc Replace LERs or the failures listed in Table 1. i 5 0 Tech Spec violation. No failure occurred.

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Enclosure 1 - Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 3 Calendar Year 1912. Unit N o - - - - - - - - Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi- i (Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached I LER Abstracts) Hours shootinp,: I Etc Renlace LERs or the failures listed in Table 1. 2 16.5 2 11~. 5 3 15 1 1 13 4 5 1 4

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Enclosure 1 Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Palisades TABLE 3 Calendar Year 19.Jio Unit No ~~~~~~~~- Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Rel'er to attached LER Abstracts) Hours shooting Etc Replace LERs or the failures listed in Table 1. 1 16 DG was inoperable for testing not failure. Tech Spec violation onlv. ei

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Enclosure l - Page 11 ONSITE EMERGENCY DIESEL GENERATOR AND Plant Name Palisades TABLE 4 AUXILIARY EQUIPMENT MODIFICATION RECORD Unit No Date of Reason for Modification and Equipment or Procedt1re Modified Mod Desired Improvement Description of Modification Operating Procedures 3/80 Reduce Operator Errors Complete Revision of Operating Procedures I l. e.

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Attachment 2 Big Rock Point Plant Diesel Generator Data 1976 - 1980 .l

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  • Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Big Rock Point TABLE 1 Calendar Year 19.1.Q Unit No '.

Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Weekly Test T7-0l 1 86 13 32 @ 51% 13 Failures To Start LERs 19-26 (From Attached LERs) 1 Hour 54 @ 0% Duration of Run=O Sec 1 Start/Test DG Actual Demand Starts Hot for . Testing Miscellaneous Tests (Specify Type)

Enclosure 1 ~ Page 1 DIESEL GENERATOR OPERATIONS DATA Plant Name Big Rock Point TABLE 1 Calendar Year 19_)) Unit No Reason for DG Nwnber Nwnber Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Weekly Test T7-01 1 74 b 27 @ 51% 6 Failures To Start LERs 9, 10, 12, 13, 14, 16 1 Hour 47 @ 0% Duration of Run=O Sec 1 Start/Test J. u7. DG Did Not Fail LER 11 Subsystem Failed Duration Not Known I DG Actual Demand t Starts Hot for i Testing Miscellaneous Tests (Specify Type) Refueling Outage Test TR-42 1 1 0 30 Min @ 50~ 50 Min 20 Min @ 90~ 1 Start/Test

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Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Big Rock Point TABLE l Calendar Year 19.1§ Unit No ~~~~~~~~- Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of 'I'nble 3) Tech Spec Required Test Weekly Test T7-0l 1 57 2 co@ 51% 0 Min; 25 Min LERs 6 & 7 l Hour 31@! Ula 1 Start/'l'est DG Actual Demand if. Starts Hot for Testing Miscellaneous Tests (Specify Type)

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Enclosure 1 - Page 1 '. DIESEL GENERATOR OPERATIONS DATA Plant Name Big Rock Point \ TABLE l Calendar Year 19..,12 Unit No ~~~~~~~~- Reason for DG Nwnber Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Weekly Test T7-01 1 b2 2 23@ 51% 2 Failures To Start LERs 4 & 5 1 Hour 39 @ 0% l Start/Test DG Actual Demand Starts Hot for

  'l'esting
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Miscellaneous Tests (Specify Type) I. Refueling Outage Test TR-42 1 1 0 30 Min le! 5G 50 Min 20 Min @! 9l.J l Start/Test

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Enclosure l - Page l DIESEL GENERATOR OPERATIONS DATA Plant Name Big Rock Point TABLE 1 Calendar Year 19~ Unit No ~~~~~~~~- Reason for DG Number Number Percent Duration of Run Operation & Scheduled DG of of Loading of Before Stop for Identification of Failure Duration of Run No Starts Failures DG (kW) Each DG Failure (Refer to Attached LERs of Table 3) Tech Spec Required Test Weekly Test T7-0l 1 33 0 14 ~ 51% 1 Hour 19 ~ 0% 1 Start/Test 3-Day Test T3-0l l Hour 1 Start/Test 1 .:so 1 5170 0 Sec LER 3 e1* I

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i 'i DG Actual Demand Starts Hot for Testing

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I Miscellaneous Tests (.Specify Type) seecial 21~-Hour Test TR-42 1 2 ] 100% TJnknown T.RR ~ 2 Hour 1 Start/Test

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 2 Calendar Year 19'.I.§_ Unit No ~~~~~~~~- Hours of Downtime Reactor Shut.Down Reactor No*t Shut Down DG # DG # DG # DG H DG # DG # DG # DG # DG # DG # Reason for Dmmtime l l Comments Scheduled Maintenance 37, ~ 73,9 Preventive Maintenance 0 12.0

l i

Time DG Is Unavailable for Emergency Service Because of Required

  'l'ests                                                                                                                                   '

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Big Rock Point

       'l'ABLE 2                                             Calendar Year 19..11                            Unit No ~~~~~~~~-

Hours of Downtime Reactor Shut.Down Reactor Not Shut Down DG # DG # DG # DG # DG II DGl DG # DG # DG # DG # Reason for Downtime l Comments Scheduled Maintenance* 102 28.3 Time DG Is Unavailable for Emergency Service 1 Full Load Test Because of Required Tests

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 2 Calendar Year 19.tl!. Unit No ~~~~~~~~- Hours of Dcnmtime Reactor Shut.Down Reactor Not Shut Down DG II DG II DG II DG II DG II DG II DG II DG II DG II DG II Reason for Downtime 1 1 Comments Scheduled Maintenance 0 lil. 5 Preventive Maintenance 8 0 Time DG Is Unavailabl~ for Emergency Service Because of Required Tests

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Enclosure 1 - Page 2 DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 2 Calendar Year 1979 Unit No ~~~~~~~~ Hours of Downtime Reactor Shut Down Reactor Not Shut Down DG II DG # DG # DG II DG # DG II DG II DG # DG # DG # *f Reason for Downtime 1 1 *comments Scheduled Maintenance 10 5 Dayi: e. Time DG Is Unavailable for Emergency Service 1 Full Load Test Because o*f Required Tests

Enclosure 1 - Page 2 ... DIESEL GENERATOR SCHEDULED DOWNTIME RECORD Plant Nrune Big Rock Point TABLE 2 Calendar Year 1980 Unit No ~~~~~~~~- Hours of Downtime Reactor Shut Down Reactor Not Shut Down DG # DG # DG # DG # DG # DG # DG # DG # DG # DG # Reason for Downtime 1 1 Comments Scheduled Maintenance 38 0 Preventive Maintenance 8 0  ! . Time DG Is Unavailable for Emergency Service 24 Generator Full Load Test Because of Required Tests

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Enclosure 1 - Page 3 .... DIESEL GENERA'l'OR UNSCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 3 Calendar Year 1976 Unit No Domitime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached LER Abstracts) Hours shooting Etc Replace LERs or the failures listed in Table 1. 17 5.5 .5 5 i: . 18 0 Tech Spec violation. Starting criteria exceeded by 3 sec. 19 0 Tech Spec violation. Starting criteria exceeded by 4 sec. 20 8 1 1 21 0 Tech Spec violation. Starting criteria exceeded by 5 sec. 22 0 Tech Spec violation. Starting criteria exceeded by 2.2 sec. 23 0 Tech Spec violation. Starting criteria exceeded by 13 sec.  : i i' 24 0 Tech Spec violation. Starting criteria exceeded. 25 0 Tech Spec violation. Starting criteria exceeded. 26 0 Tech Spec violation. Starting criteria exceeded by 10 sec. 27 0 Design review. 28 0 Auto transfer failed. Manual transfer made. 29 9 1 8 30 8 1 7

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Enclosure l - Page 3 - ,.. DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 3 Calendar Year 19.11 Unit No Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency con<lJ-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. R*~l'er to attached LER Abstracts) Hours shooting Etc Renlace LERs or the failures listed in Table l. 8 0 Auto Transfer failed. Manual transfer made. 9 0 Tech Snee violation. Starting criteria exceeded by 19.l sec. 10 0 Tech Spec violation. Starting criteria exceeded by 7.9 sec. 11 - - - - CP Co LER 77-27 was assigned both #8 and #11. For info I I 12 0 see #8 above. Tech Spec violation. Starting criteria exceeded by 2.6 sec. el . I 13 0 Tech Spec violation. Starting criteria exceeded by 12 sec. 111 0 Tech Snee violation. Starting criteria exceeded by .8 sec. 15 8 8 16 .5 .5 Cause unknown. No repairs made. I e! I

                             <...:,,, *. "" *',,* L' Enclosure 1   Page 3             ..~

DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 3 Calendar Year 19_1_8 Unit No ,. Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached LER Abstracts) Hours shooting Etc Replace LERs or the failures listed in Table 1. 6 0 Tech Spec violation. Starting criteria exceeded bv 14.6 sec. 7 2lf 1 22 1 el !

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Enclosure 1 - Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Name Big Rock Point TABLE 3 Calendar Year 1979 Unit No ~~~~~~~~- 'I! Downtime Hours Comments - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergenc,y condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached LER Abstracts) Hours shooting Etc Reolace LERs or the failures listed in Table 1. 4 10 Davs 10 Davs No Exact cause found. No repairs made. 5 0 Tech Snee violation. Starting criteria exceeded bv 1.9 sec

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Enclosure l - Page 3 DIESEL GENERATOR UNSCHEDULED DOWNTIME RECORD Plant Naine Big Rock Point I

                    'rABLE 3                                 Calendar Year 1980                       Unit No ~~~~~~~~-

1 Downtime Hours Couunents - If any of the reported failures would not LER Abstract No Parts, have been a failure under emergency condi-(Refer to Attached Total Trouble- Delivery, Repair/ tions, please explain here. Refer to attached LER Abstracts) Hours shooting Etc Replace LERs or the failures listed in Table 1. 1 3 l l l 2 18 Days  ::: 1 Hr 17 Days  ::: 1 Hr

                                                   "' 22 Hr 3               1 Hr    1/2           -           1/2 a!

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Enclosure 1 - Page 11 ONSITE EMERGENCY DIESEL GENERATOR AND Plant Name Big Rock Point TABLE 4 AUXILIARY EQUIPMENT MODIFICATION RECORD Unit No - - ' - - - - - - - - - Date of Reason for Modification and Equipment or Procedure Modified Mod Desired Improvement Description of Modification FC-394 Start Timer 10/21/76 Improve Starting Time Change timer from crank-pause to con-tinuous crank for 25 sec. FC-411 Governor Oil Line 1/10/77 Improve Starting Time New oil line was installed to governor. FC-412 Throttle Arm 5/27/77 Improve Starting Time Install throttle arm to replace governor control. I SFC-78-006 Pump Seal 4/20/78 Reduce Seal Leakage Problems Replace water pump conventional seal with mechanical seal. eiI Tech Spec Test '1'7-01 Acceptance 10/20/76 Accident Timing Analysis Acceptance criteria changed from 15 sec to Criteria 12 sec. Tech Spec Test '1'7-01 5/ 4/77 Accident Timing Analysis Acceptance criteria changed from 12 sec to 13.9 sec.

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