ML20206N502

Temporary Change Notice 2-1 to Rev 2 to Alarm Response Instruction S023-15-50.A1, Annunciator Panel,50A Pzr/Cea Windows 1-30, Pages 1,3,14,15 & 62-64

ML20206N502
Person / Time
Site:	San Onofre
Issue date:	01/30/1998
From:	Bartz L SOUTHERN CALIFORNIA EDISON CO.
To:
Shared Package
ML20206N476	List: ML20206N471 ML20206N502 ML20206N514 ML20206N523 ML20206N538
References
S023-15-50.A1, S23-15-50.A1, NUDOCS 9905170246
Download: ML20206N502 (8)

Text

v-l NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 10F 75 EFFECTIVE DATE JAN 30 1998 ANNUNCIATOR PANEL. 50A PZR/CEA WINDOWS 1-30 TABLE OF CONTENTS SECTION PAqf, 1.0 OBJECTIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 REFERENCES

.............................. 2 3.0 PREREQUISITES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4.0 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 l 5.0 CHECKLIST (S) ............................. 2 6.0 PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.0 RECORDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ATTACHMENT l

1 Annunciator Panel 50A Index . . . . . . . . . . . . . . . . . . . 7 2 Annunciator Panel 50A (Windows 1-30) Alarm Responses ...... 8 v50Al-2.w61 QA PROGRAM AFFECTING LBartz l

9905170246 990513 fDR ADOCK 05000361 PDR

I K O DDAPCnH3C NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 3 0F 75 6.0 PROCEDUAE 6.1 Annunciator Response is an act involving three critical steps:

(Refer to S023-0-44, for further guidance.)

e Validate off-normal conditions, validating off-normal conditions begins with a mind set that the alarm (s) are valid until substantiated by hard data that it is erroneous or a nuisance alarm, e Report problems, reporting the problem begins with isolating and defining the cause for the alarm and ensuring that the control room team is aware of the condition.

e Initiate corrective action, initiating corrective actions begins l with the manipulation of controls to mitigate adverse system {

response. j 6.2 It is essential to Self Check when responding to alarms, misdiagnosed or inappropriate actions can lead to equipment damage, plant trips and degraded plant safety. Knowing how to self-check is important.

KNOWING WHEN TO SELF-CHECK IS JUST AS IMPORTANT. SELF-CHECKING consists of four distinct actions. Remembering the acronym STOP will help)you to be a self-checker: (RefertoS023-0-44, for further guidance.

S T 0 P T N B E O I S R P N E F K R 0 V R E M i

6.3 When verifying alarm validity, than all available indications and information sources should be used (e.g., Control Board Indications, PMS, CFMS, QSPDS and Local Operator Feedback, etc.).

6.4 When actuation of one or more alarms occurs on an annunciator panel, then assess the impact on plant status, and take corrective action.

6.4.1 Possible actions to aid in either performance of the assessment, or in the determination of appropriate corrective actions are provided in Section 2.0 of each alarm response, under the title of " Corrective Actions."

.1 11 the assessment determines that the Corrective Actions are appropriate, than such actions are required.

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l NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 14 0F 75 ATTACHMENT 2 50A03 PZR LEVEL LO-L0 APPLICABILITY PRIORITY REFLASH ASSOCIATED WINDOWS Modes 1-4 RED NO NONE INITIATING NOUN NAME SETPOINT VALIDATION PMS ID LINK #

DEVICE INSTRUMENT U2/U3 2(3)LCLL-0110-X Pressurizer Level 23.1% 2(3)L1-0110A1 L110X 611/633 LO-LO 2(3)LI-011081 612/634 2(3)LCLL-0110-Y 23.1% 2 3)LI-0110A2 L110Y Pressurizer Level 2 L1-011082 LO-LO 2 LR-0110-1 2 LI-0103A 1.0 RE0DIRED ACTIONS:

1.1 Ensure maximum charging flow and minimum letdown flow.

1.2 . Ensure all Pressurizer Heaters are De-energized.

1.3 Determine if Letdown and Charging Systems are responding as desired.

11 not, then perform the following:

1.3.1 Depressthe"A/M"Buttonon2(3)LIC-0110,PZRLevel Controller, to place PZR level control in MANUAL.

1.3.2 Startand/orStopChargingPumpstomatchLetdownflowas closely as possible.

1.3.3 Adjust 2(3)LIC-0110, PZR Level Controller, to match Letdown and Charging flows.

1.3.4 Monitor PZR level and maintain stable.

2.0 CORRECTIVE ACTIONS:

SPECIFIC CAUSES SPECIFIC CORRECTIVE ACTIONS 2.1 Reactor Coolant System 2.1 GO TO S023-13-14, Reactor Coolant Leak.

leak 2.2 Pressurizer auto level 2.2 If Level Transmitter failure is apparent, control failure then transfer to the operable transmitter per 5023-3-1.10, Attachment for Transferring Pressurizer Level and Pressure Controls, Section for Transfer of PZR Selected Level Channels (X - Y).

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NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 15 0F 75 ATTACHMENT 2 50A03 PZR LEVil LO-LO (Continued) 3.0 ASSOCIATED RESPONSES: -

l 3.1 Return Pressurizer level control to normal per 5023-3-1.10, Section for Normal Pressurizer Level Control.

3.2 Restore Pressurizer pressure control to normal per 5023-3-1.10, Section for Normal Pressurizer Pressure Control.

3.3 Evaluate for a Priority 1 Action Request to repair defective equipment.

3.4 NotifytheCRS/SSandtheSTAtoreviewTech. Specs.LCO3.3.11, LC0 3.3.12, LCO 3.4.9, LCS 3.7.113.1, andinitiateanEDMR/LC0AR,as required.

3.5 NotifytheCRS/SSandtheSTAtoreviewtheEPIPsandS0123-0-14,and perform notifications as required.

4.0 COMPENSATORY ACTIONS:

DEVICE NUMER SPECIFIC COMPENSATORY ACTIONS 4.1 2 LCLL-0110-X, or 4.1 Monitor Pressurizer Level at least once 2 LCLL-0110-Y every 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

5.0 REFERENCES

5.1 NRC Commitments:

5.1.1 Technical Specifications 5.2 Operating Instructions:

5.2.1 5023-3-1.10, Pressurizer Pressure and Level Control 5.2.2 5023-13-14, Reactor Coolant Leak

5.3 Drawings

5.3.1 P& ids:

.1 40111B & D, Reactor Cooling System lR

5.3.2 Elementaries

.1 30576, Pressurizer Heater Defeat Control lN

.2 30577, Pressurizer Level Control

.3 31549 (33549) Sht 7, Wiring Diagram Control Building g AnnunciatorLogicCabinet2(3)LO40

NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 62 0F 75 ATTACHMENT 2 50A23 PZR LEVEL ERROR LO APPLICABILITY PRIORITY REFLASH ASSOCIATED WINDOWS Modes 1-4 WHITE YES NONE INITIATING NOUN NAME SETPOINT VALIDATION PMS ID LINK #

DEVICE INSTRUMENT U2/U3 1

2(3)LCHL-0110-X Pressurizer Level -6% 2(3)L1-0110A1 634/656 ErrorHI/LOAlarm 2(3)LI-011081 L110X 635/657 2 LI-0110A2 2(3)LCHL-0110-Y Pressurizer Level -6% 2 LI-011082 L110Y ErrorHI/LOAlarm 2 LR-0110-1 2(3)L1-0103A 1.0 REQUIRED ACTIONS:

CMIl0E: To prevent Pressurizer Heater damage, Press, zer Heaters SHALL be De-energized prior to Pressurizer level re' 'ing 23.1%.

1.1 If Pressurizer level approaches 23.1%.1 hen De-energize all Pressurizer Heaters. I 1.2 Determine if Letdown and Charging Systems are responding as desired. I If not, then perform the following: l 1.2.1 Depress the "A/M" Button on 2(3)LIC-0110, PZR Level Controller, to place PZR level control in MANUAL.

1.2.2 Startand/orStopChargingPumpstomatchLetdownflowas closely as possible.

1.2.3 Adjust 2(3)LIC-0110, PZR Level Controller, to match Letdown and Charging flows.

1.2.4 Monitor PZR level and maintain stable.

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NUCLEAR ORGANIZATION

! ALARM RESPONSE INSTRUCTION 5023-15-50.Al UNITS ? AND 3 REVISION 2 TCN 2-1 PAGE 63 0F 75 ATTACHMENT 2 50A23 PZR LEVEL ERROR LO (Continued) 2.0 CORRECTIVE ACTIONS:

SPECIFIC CAUSES SPECIFIC CORRECTIVE ACTIONS 2.1 Reactor Coolant System 2.1 GO TO S023-13-14, Reactor Coolant Leak.

leak 2.2 PZR auto level 2.2 Determine if the failure is cause by a control failure Setpoint failure (LR-01108, green pen) or a Selected Level Channel failure (LR-0110A, red pen). Refer to S023-3-1.10, Att, for Transferring PZR Lvl and Press Controls.

For a Setpoint transfer, perform IN1 - IN2 section. For a Selected Level Channel transfer, perform X - Y level section.

3.0 ASSOCIATED RESPONSES:

3.1 Return Pressurizer level control to normal per 5023-3-1.10, Section for Normal Pressurizer Level Control.

3.2 Evaluate for a Priority 1 Action Request to repair defective equipment.

3.3 Notify the CRS/SS and the STA to review Tech. Specs. LCO 3.3.11, LCO 3.3.12, LC0 3.4.9, LCS 3.7.113.1, and initiate an EDMR/LC0AR, as required.

3.4 NotifytheCRS/SSandtheSTAtoreviewtheEPIPsand 50123-0-14, and perform notifications as required.

4.0 COMPENSATORY ACTIONS:

DEVICE NUMBER SPECIFIC COMPENSATORY ACTIONS 4.1 2(3)LI-0110A1,2(3)LI-0110B1, 4.1 Monitor Pressurizer level at least once  ;

l 2(3)LI-0110A2, 2(3)LI-0110B2, every I hour. j PZR Level Indicators

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NUCLEAR ORGANIZATION ALARM RESPONSE INSTRUCTION S023-15-50.Al UNITS 2 AND 3 REVISION 2 TCN 2-1 PAGE 64 0F 75 ATTACHMENT 2 50A23 PZR LEVEL ERROR LO (Continued)

5.0 REFERENCES

5.1 NRC Commite.ents:

5.1.1 Technical Specifications 5.2 Operating Instructions:

5.2.1 5023-3-1.10, Pressurizer Pressure and Level Control 5.2.2 S023-13-14, Reactor Coolant Leak

5.3 Drawings

5.3.1 P& ids:

.1 40111B, Reactor Cooling System

5.3.2 Elementaries

.1 30577, Pressurizer Level Control i

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l l Attachment B - Abnormal Operating Instruction SO23-13-17 " Recovery i From Inadvertent Safety Injection, Containment Isolation or i l

Containment Spray" l

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