ML24045A039

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Proposed in Plant JPMs
ML24045A039
Person / Time
Site: Davis Besse 
Issue date: 12/14/2023
From:
NRC/RGN-III/DORS/OB
To:
Energy Harbor Nuclear Corp
Greg Roach
Shared Package
ML22251A143 List:
References
Download: ML24045A039 (1)
v • d • e


Text

Davis-Besse Initial License Exam 2024 Plant JPM i

Job Performance Measure Form 3.2-3 Worksheet Plant JPM i Page 1 of 5 Examinee:

Date:

Examiner:

Facility: Davis-Besse JPM No: OPS-JPM-223 Task

Title:

Perform in progress WGDT 3 release Task No: 071-005-01-0402 System: 071 Chem and Volume Control System K/A

Reference:

071 A1.08 / 2.7 Safety Function: 9 Radioactive Release Time Critical Task: No Alternate Path: No Validation Time: 22 minutes Method of testing / Location:

Simulated Performance _ X _

Actual Performance Classroom __ _

Simulator Plant __X _

Task Standard:

Stop the WGDT 3 release when 50-2-I, WST GAS SYS RAD MNTR FLOW is received, and sample flow cannot be adjusted.

Required Materials:

DB-OP-03012, Radioactive Gaseous Batch Release in progress General

References:

None Notes:

  • The stand-by candidate can be allowed to review the procedure and prints prior to JPM to allow the JPM to start ASAP.
  • JPM is performed in the Aux Building Initial Conditions:

The plant conditions are specified in the Initial Conditions and Initiating Cues.

Initiating Cue:

The Initiating Cues are specified in the Examiner/Student Copy Performance Measure pages.

Job Performance Measure Form 3.2-3 Worksheet Plant JPM i Page 2 of 5 EXAMINER COPY INITIAL CONDITIONS:

The Zone 3 operator has just started a Radioactive Gaseous Batch Release of WGDT 3.

DB-OP-03012, Radioactive Gaseous Batch Release, is complete up to step 4.3.21.

FIC1821 is being used for the release and is set to 45 scfm.

Both RE1822A and RE1822B are operable and monitoring the release.

All release paperwork has been reviewed and is in order.

INITIATING CUES:

The Shift Manager (SM) directs you to complete the release starting at Step 4.3.22.

(Hand copy of the following to the examinee:

DB-OP-03012 Radioactive Gaseous Batch Release signed off through step 4.3.21, Radioactive Gaseous Batch Release Permit signed off through step 6 (release start) and step 9 (Waste Gas Decay Tank release rate) to examinee.)

Job Performance Measure Form 3.2-3 Worksheet Plant JPM i Page 3 of 5 CANDIDATE COPY INITIAL CONDITIONS:

The Zone 3 operator has just started a Radioactive Gaseous Batch Release of WGDT 3.

DB-OP-03012, Radioactive Gaseous Batch Release, is complete up to step 4.3.21.

FIC1821A is being used for the release and is set to 45 scfm.

Both RE1822A and RE1822B are operable and monitoring the release.

All release paperwork has been reviewed and is in order.

INITIATING CUES:

The Shift Manager (SM) directs you to complete the release starting at Step 4.3.22.

Job Performance Measure Form 3.2-3 Worksheet Plant JPM i Page 4 of 5 PERFORMANCE INFORMATION NOTE: Critical steps denoted with a "C". Failure to meet any one of these standards for this item constitutes failure. Sequence is NOT assumed unless denoted in the "Comments".

START TIME: __________

1.

PERFORMANCE STEP:

Review the steps performed throughout the release. (Step 4.3.22)

STANDARD: Review steps 4.3.23 through 4.3.27 CUE: ROLE PLAY as Zone 3 operator to answer examinees turnover questions. WHEN turnover has been completed, THEN provide the following cue:

Annunciator alarm 50-2-I WST GAS SYS RAD MNTR FLOW has just been received.

NOTE: May also refer to DB-OP-02050, 50-2-I WST GAS RAD MNTR FLOW LO (Same initial actions)

SAT UNSAT

2.

PERFORMANCE STEP: Raise RE flow by throttling closed WG130 WASTE GAS TO STATION VENT CONTROL VALVE OUTLET ISOLATION. (Step 4.3.26 a.)

STANDARD: WG130 handwheel rotated clockwise.

COMMENT: Radiation Element low flow alarm WILL NOT clear even with WG130 fully closed.

CUE: WG130 handwheel has been rotated clockwise. FYIS1822 indicates zero.

(When checked back at panel) Annunciator 50-2-I is still in alarm.

SAT UNSAT

3.

PERFORMANCE STEP: Close WG1819 WASTE GAS VENT 1 C

(Step 4.3.26 b. 1.)

STANDARD: CLOSE button pressed on HIS1819.

CUE: CLOSE button has been pressed on HIS1819. Red light goes OFF. Green light comes ON.

SAT UNSAT

Job Performance Measure Form 3.2-3 Worksheet Plant JPM i Page 5 of 5

4. PERFORMANCE STEP:

Close WG1820 WASTE GAS VENT 2 C

(Step 4.3.26 b. 2.)

STANDARD:

CLOSE button pressed on HIS1820.

CUE:

CLOSE button has been pressed on HIS1820. Red light goes OFF. Green light comes ON.

SAT UNSAT

5. PERFORMANCE STEP:

Notify the Shift Manager (SM). (Step 4.3.26 b. 3.)

STANDARD:

Notify the SM that the low Radiation Element flow condition can NOT be cleared.

CUE:

The SM directs you to stop the release.

SAT UNSAT

6. PERFORMANCE STEP:

Close WG1840, WGDT 3 FILTER C

(Step 4.3.28 c. 1.)

STANDARD:

CLOSE button pressed on HIS1840.

CUE:

CLOSE button has been pressed on HIS1840. Red light goes OFF. Green light comes ON.

SAT UNSAT TERMINATING CUES:

This JPM is complete. (Terminated by the evaluator)

END TIME

40 DB-OP-02050 Revision 10 RADWASTE CONTROL ALARM PANEL 50 ANNUNCIATORS Panel 50 50-2-I 1

WST GAS 2

RAD 3

MNTR FLOW LO 4

A B

C D

E F

G H

I J

K L

COLOR:

White ACTUATING DEVICE(S)

SET POINTS 1.

FYIS1822 2.

ZS1820 3.

ZS1819

1.

6.0 SLPM (6000 SCCM)

2.

N/A

2.

N/A 1.0 SYMPTOMS 1.1 Annunciator Alarm (50-2-I) WST GAS RAD MNTR FLOW LO.

1.2 Annunciator Alarm (7-2-C) WST GAS DECAY TKS TRBL.

1.3 Low Radioactive Gaseous Rad Monitor flow as indicated on FYIS1822 locally.

2.0 IMMEDIATE ACTIONS None 3.0 SUPPLEMENTARY ACTIONS 3.1 Confirm the low flow condition by checking for low flow locally at FYIS1822, RADIOACTIVE GASEOUS RAD MONITOR LOW FLOW.

3.2 IF a Radioactive Gaseous Batch Release is in progress, THEN raise RE flow by throttling closed WG130, WASTE GAS TO STATION VENT CONTROL VALVE OUTLET ISOLATION, REFER TO DB-OP-03012, Radioactive Gaseous Batch Release.

3.3 IF the low flow condition is from the termination of a Radioactive Gaseous Batch Release, THEN GO TO DB-OP-03012, Radioactive Gaseous Batch Release.

3.4 IF FYI1822, RAD MONITOR FLOW INSTRUMENTATION, is inoperable, THEN GO TO DB-OP-03012, Radioactive Gaseous Batch Release.

41 DB-OP-02050 Revision 10

4.0 REFERENCES

4.1 Developmental 4.1.1 M-038C, Gaseous Radioactive Waste System 4.1.2 OS-030, Sh. 1, Gaseous Radwaste System 4.2 Implementation 4.2.1 DB-OP-03012, Radioactive Gaseous Batch Release

Davis-Besse Initial License Exam 2024 Plant JPM j

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 1 of 6 Examinee:

Date:

Examiner:

Facility: Davis-Besse JPM No: OPS-JPM-075 Task

Title:

Reset AFPT Overspeed Trip Mechanism Task No: 061-020-04-0100 System: 061 Aux Feedwater System K/A

Reference:

061K4.07 / 3.7 Safety Function: 4S Heat Removal-Secondary Time Critical Task: No Alternate Path: No Validation Time: 10 minutes Method of testing / Location:

Simulated Performance _ X _

Actual Performance Classroom __ _

Simulator Plant __X _

Task Standard:

Reset the AFPT Overspeed Trip Mechanism Required Materials:

DB-OP-06233 R46, Auxiliary Feedwater System R46, Section 5.12 General

References:

DB-OP-02010 Annunciator 10-2-H, AFPT 2 OVRSPD TRIP Notes:

Will require Plant Security support to guard hatch Protected Train equipment (Protected Train 1 week)

Steep stairs to AFP Rooms Initial Conditions:

The plant conditions are specified in the Initial Conditions and Initiating Cues.

Initiating Cue:

The Initiating Cues are specified in the Examiner/Student Copy Performance Measure pages.

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 2 of 6 EXAMINER COPY INITIAL CONDITIONS:

A Loss of Offsite Power has occurred due to the switchyard taking a lightning strike.

Auxiliary Feedwater Pump Turbine (AFPT) 2 has initiated and subsequently tripped due to overspeed.

HIS521A, AFPT 2 GOVERNOR CONTROL, has been placed in the LOWER position. The Governor Green Low Speed Stop indicating light is LIT.

INITIATING CUES:

The Shift Manager directs you to reset AFPT 2 Overspeed Trip Mechanism and Trip Throttle Valve in accordance with section 5.12 of DB-OP-06233.

(Hand a copy of DB-OP-06233 section 5.12 to the examinee)

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 3 of 6 CANDIDATE COPY INITIAL CONDITIONS:

A Loss of Offsite Power has occurred due to the switchyard taking a lightning strike.

Auxiliary Feedwater Pump Turbine (AFPT) 2 has initiated and subsequently tripped due to overspeed.

HIS521A, AFPT 2 GOVERNOR CONTROL, has been placed in the LOWER position. The Governor Green Low Speed Stop indicating light is LIT.

INITIATING CUES:

The Shift Manager directs you to reset AFPT 2 Overspeed Trip Mechanism and Trip Throttle Valve in accordance with section 5.12 of DB-OP-06233.

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 4 of 6 PERFORMANCE INFORMATION NOTE: Critical steps denoted with a "C". Failure to meet any one of these standards for this item constitutes failure. Sequence is NOT assumed unless denoted in the "Comments".

START TIME: __________

1.

PERFORMANCE STEP:

Local inspection of #2 Auxiliary Feedwater Pump Turbine by local operator.

(Step 5.12.1)

STANDARD: Look over the turbine and pump checking for apparent damage.

Check governor and linkage for apparent damage.

CUE: NO DAMAGE is readily apparent to any component, AFPT 2 is intact.

SAT UNSAT

2.

PERFORMANCE STEP:

C____

Pull connecting rod, using the handle, past the reset position while pushing the tappet down.

(Step 5.12.3 a.)

STANDARD: Push down on the tappet assembly then pull the connecting rod past the RESET position.

CUE: The trip tappet is depressed. The connecting rod has been pulled past the RESET position and RELEASED.

(If asked) The pointer indicates to the left of RESET.

SAT UNSAT

3.

PERFORMANCE STEP:

C____

Release the connecting rod.

(Step 5.12.3 b.)

STANDARD: Release the connecting rod.

CUE: NONE SAT UNSAT

4.

PERFORMANCE STEP:

C____

Unseal ICS 38D, Auxiliary Feedwater Pump Turbine Trip Throttle.

(Step 5.12.3 c.)

STANDARD: Unseal ICS 38D CUE: ICS 38D is unsealed.

SAT UNSAT

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 5 of 6

5.

PERFORMANCE STEP:

C____

Turn ICS 38D, Auxiliary Feedwater Pump Turbine Trip Throttle, clockwise until latch-up lever contacts stop on yoke trip hook and handwheel will turn no further.

(Step 5.12.3 d.)

STANDARD: Clockwise rotation on ICS 38D watching yoke trip hook move down to latch-up lever. Handwheel motion stops.

CUE: Latch-up lever and yoke are in contact with one another with no further movement of ICS 38D.

SAT UNSAT

6.

PERFORMANCE STEP:

C____

Push on Trip Hook until there is no gap.

(Step 5.12.3 e.)

STANDARD: Verify no gap exists on Trip Hook Assembly.

CUE: No gap exists.

SAT UNSAT

7.

PERFORMANCE STEP: Verify Latch-up Lever, and Trip Hook are completely engaged.

(Step 5.12.3 f.)

STANDARD: Verify no gaps.

CUE: No gap exists.

SAT UNSAT

8.

PERFORMANCE STEP:

C____

Verify the reset arrow on the RESET/TRIPPED indicator aligns with the pointer on the connecting rod.

(Step 5.12.3 g.)

STANDARD: Check RESET arrow aligned with pointer on connecting rod.

CUE: The pointer is aligned to the RESET arrow.

SAT UNSAT

Job Performance Measure Form 3.2-3 Worksheet Plant JPM j Page 6 of 6

9.

PERFORMANCE STEP: IF Auxiliary Feedwater Pump Turbine 2 is being reset after an overspeed trip, THEN inform Control Room the trip throttle is reset, AND standing by to open ICS 38D.

(Step 5.12.3 h.)

STANDARD: Contact Control Room via previous communications established and inform them the trip throttle is reset AND standing by to open ICS 38D.

CUE: Open ICS38D, AFPT 1-2 TRIP THROTTLE SAT UNSAT

10. PERFORMANCE STEP:

C____

Open ICS 38D, Auxiliary Feedwater Pump Turbine Trip Throttle Valve.

(Step 5.12.3 i.)

STANDARD:

Turn handwheel counterclockwise until completely OPEN.

CUE:

ICS 38D has been rotated counterclockwise and will move no further SAT UNSAT

11.

PERFORMANCE STEP: Close ICS 38D, Auxiliary Feedwater Pump Turbine 2 Trip Throttle Valve, one-quarter turn.

(Step 5.12.3 j.)

STANDARD: Rotate handwheel one-quarter turn in the clockwise direction.

CUE: ICS 38D has been rotated one-quarter turn clockwise.

SAT UNSAT

12.

PERFORMANCE STEP: Seal ICS 38D, Auxiliary Feedwater Pump Turbine 2 Trip Throttle Valve.

(Step 5.12.3 k.)

STANDARD: Proper use of sealing equipment.

CUE: The trip throttle valve is sealed.

SAT UNSAT TERMINATING CUES This JPM is complete. (Terminated by the evaluator)

END TIME

247 DB-OP-06233 Revision 46 5.12 Resetting AFPT 2 Overspeed Trip Mechanism and Trip Throttle Valve Prerequisites NOTE 5.12.1 This subsection should be used in conjunction with DB-OP-02010, Alarm Panel 10, Annunciator 10-2-H, AFPT 2 OVRSPD TRIP.

The alarm procedure will have the CTRM lower the AFPT to the LSS and have the local operator verify freedom of movement of L1 governor linkage.

5.12.1 The local operator has inspected AFPT 2, AND has determined AFPT 2 is intact.

5.12.2 Shift Manager has given permission to reset AFPT 2.

Prerequisites completed by Date Procedure 5.12.3 Perform the following to reset ICS38D, AFPT 1-2 TRIP THROTTLE.

a.

Pull the Connecting Rod, using the handle, past the "Reset" position, while pushing the trip tappet down.

b.

Release the Connecting Rod.

c.

Unseal ICS38D, AFPT 1-2 TRIP THROTTLE.

d.

Turn ICS38D, AFPT 2 TRIP THROTTLE, handwheel clockwise until Latch-Up Lever contacts stop on valve yoke and handwheel will turn no further.

e.

Push on the Trip Hook until there is no gap.

f.

Verify the Latch-Up Lever, AND Trip Hook are completely engaged.

g.

Verify the "Reset" arrow on the RESET/TRIPPED indicator aligns with corresponding pointer on the connecting rod.

h.

IF AFPT 2 is being reset after a overspeed trip, THEN inform CTRM AFPT 2 Trip Throttle Valve is reset AND standing by to open ICS38D, AFPT 1-2 TRIP THROTTLE

248 DB-OP-06233 Revision 46 CAUTION 5.12.3.i When opening the Trip Throttle Valve, caution shall be exercised not to apply excessive force against the Mechanical Stop.

i.

Open ICS38D, AFPT 1-2 TRIP THROTTLE.

j.

Turn ICS38D, AFPT 1-2 TRIP THROTTLE handwheel 1/4 turn closed.

k.

Seal ICS38D, AFPT 1-2 TRIP THROTTLE handwheel.

l.

Verify ICS38D, AFPT 1-2 TRIP THROTTLE is reset, AND sealed open.

IV Independent Verification by Date

m.

Check the following:

Computer Point S017, AFPT 2 OVERSPEED, indicates NORM.

Computer Point Z002, AFPT 2 STOP/GOV/STM IN ISO VLVS, indicates NORM.

Annunciator, AFPT 2 OVRSPD TRIP (10-2-H), is EXTINGUISHED.

Annunciator, AFP 2 TRBL (10-4-H), is EXTINGUISHED.

5.12.4 IF AFPT 2 has been reset following an overspeed trip, THEN GO TO Subsection 5.10, AFW Train 2 Operation following Automatic Start.

Subsection 5.12 completed by Date

Davis-Besse Initial License Exam 2024 Plant JPM k

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 1 of 6 Examinee:

Date:

Examiner:

Facility: Davis-Besse JPM No: OPS-JPM-027 Task

Title:

Use Circ Water to Supply Service Water Primary Loads Task No: 076-004-04-0100, 076-012-04-0400 System: 075 Circulating Water System K/A

Reference:

076 K1.14 / 2.7 Safety Function: 8 Plant Service Systems Time Critical Task: No Alternate Path: No Validation Time: 14 minutes Method of testing / Location:

Simulated Performance X Actual Performance Classroom ___

Simulator Plant X Task Standard:

Line up Circulating Water to supply Service Water Loop 2 primary loads Required Materials: of DB-OP-02511 R22 General

References:

None Notes:

  • Obtain Key to Intake Structure prior to JPM.
  • Check door status, may need security support Initial Conditions:

The plant conditions are specified in the Initial Conditions and Initiating Cues Initiating Cue:

The Initiating Cues are specified in the Examiner/Student Copy Performance Measure pages.

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 2 of 6 EXAMINER COPY INITIAL CONDITIONS:

The plant is in Mode 3 A loss of all service water is in progress INITIATING CUES:

The Unit Supervisor directs you to line up Circulating Water to supply Service Water Loop 2 Primary Loads, using Attachment 9 of DB-OP-02511, Loss of Service Water Pumps/System (Provide the examinee a copy of Attachment 9 of DB-OP-02511)

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 3 of 6 CANDIDATE COPY INITIAL CONDITIONS:

The plant is in Mode 3 A loss of all service water is in progress INITIATING CUES:

The Unit Supervisor directs you to line up Circulating Water to supply Service Water Loop 2 Primary Loads, using Attachment 9 of DB-OP-02511, Loss of Service Water Pumps/System

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 4 of 6 PERFORMANCE INFORMATION NOTE: Critical steps denoted with a "C". Failure to meet any one of these standards for this item constitutes failure. Sequence is NOT assumed unless denoted in the "Comments".

START TIME:

1.

PERFORMANCE STEP: Obtain a key for the intake structure.

STANDARD:

Obtain a key from the Work Support Center key locker COMMENT:

Trainee may use the card reader to enter the service water tunnel from the Turbine Building instead of obtaining the key for the intake structure/water treatment entrance.

CUE: If required, provide key to candidate.

SAT UNSAT

2.

PERFORMANCE STEP: Verify CT 2955, TPCW HX SUPPLY FROM CIRC WTR, is OPEN ATT 9 Step 1 C

STANDARD: Check valve OPEN by pointer, local indicating light or requesting indicating light from the Control Room CUE:

  • (If used) CT 2955 local position is pointing to OPEN
  • (If used) NV 2955 Red light is LIT. (Local Switch)
  • (If Control Room is called) CT 2955 indicates open. HIS 2955 Red light is LIT SAT UNSAT
3.

PERFORMANCE STEP: Verify CT 56, CIRCULATING WATER SUPPLY TO TURBINE PLANT COOLING WATER HEAT EXCHANGER STOP VALVE, is OPEN ATT 9 Step 2 STANDARD: Check valve OPEN by local position indicator May also rotate valve in the closed position then reopen NOTE: CT56 is normally open, step becomes critical if they close it CUE: CT 56 valve indicator is pointing to "O" SAT UNSAT

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 5 of 6

4.

PERFORMANCE STEP: Verify SW 51, TPCW HEAT EXCHANGER 1 INLET ISOLATION, is Closed.

ATT 9 Step 3 C

STANDARD: Manually close SW 51 CUE: If asked, the CSRO directs you to isolate SW to all 3 HXs.

SW 51 handwheel has been rotated clockwise and the valve position indicator moves from vertical to horizontal SAT UNSAT

5.

PERFORMANCE STEP: Verify SW 52, TPCW HEAT EXCHANGER 2 INLET ISOLATION, is Closed.

ATT 9 Step 3 C

STANDARD: Manually close SW 52 CUE: SW 52 handwheel has been rotated clockwise and the valve position indicator moves from vertical to horizontal SAT UNSAT

6.

PERFORMANCE STEP: Verify SW 53, TPCW HEAT EXCHANGER 3 INLET ISOLATION, is Closed.

ATT 9 Step 3 C

STANDARD: Manually close SW 53 CUE: SW 53 handwheel has been rotated clockwise and the valve position indicator moves from vertical to horizontal SAT UNSAT

7.

PERFORMANCE STEP:

Open Breaker BF 1277, SERVICE WATER HEADER 2 TO TPCW HEAT EXCHANGERS SW 1395 ATT 9 Step 4. a.

C STANDARD: Move breaker handle down to Open BF 1277.

CUE: Breaker handle for SW1395 is down, indicates OFF.

SAT UNSAT

Job Performance Measure Form 3.2-3 Worksheet Plant JPM k Page 6 of 6

8.

PERFORMANCE STEP: Open SW 1395, TPCW HEAT EXCHANGER INLET HEADER ISOLATION ATT 9 Step 4. b.

C STANDARD: Engage clutch on SW 1395 Turn handwheel counterclockwise COMMENT: Indicating lights off because breaker has just been opened CUE:

  • SW 1395 handwheel clutch has been DEPRESSED
  • The handwheel has been turned counterclockwise
  • The position indicator on SW 1395 is pointing up SAT UNSAT TERMINATING CUES This JPM is complete. (Terminated by the evaluator)

END TIME

247 DB-OP-06233 Revision 46 5.12 Resetting AFPT 2 Overspeed Trip Mechanism and Trip Throttle Valve Prerequisites NOTE 5.12.1 This subsection should be used in conjunction with DB-OP-02010, Alarm Panel 10, Annunciator 10-2-H, AFPT 2 OVRSPD TRIP.

The alarm procedure will have the CTRM lower the AFPT to the LSS and have the local operator verify freedom of movement of L1 governor linkage.

5.12.1 The local operator has inspected AFPT 2, AND has determined AFPT 2 is intact.

5.12.2 Shift Manager has given permission to reset AFPT 2.

Prerequisites completed by Date Procedure 5.12.3 Perform the following to reset ICS38D, AFPT 1-2 TRIP THROTTLE.

a.

Pull the Connecting Rod, using the handle, past the "Reset" position, while pushing the trip tappet down.

b.

Release the Connecting Rod.

c.

Unseal ICS38D, AFPT 1-2 TRIP THROTTLE.

d.

Turn ICS38D, AFPT 2 TRIP THROTTLE, handwheel clockwise until Latch-Up Lever contacts stop on valve yoke and handwheel will turn no further.

e.

Push on the Trip Hook until there is no gap.

f.

Verify the Latch-Up Lever, AND Trip Hook are completely engaged.

g.

Verify the "Reset" arrow on the RESET/TRIPPED indicator aligns with corresponding pointer on the connecting rod.

h.

IF AFPT 2 is being reset after a overspeed trip, THEN inform CTRM AFPT 2 Trip Throttle Valve is reset AND standing by to open ICS38D, AFPT 1-2 TRIP THROTTLE

248 DB-OP-06233 Revision 46 CAUTION 5.12.3.i When opening the Trip Throttle Valve, caution shall be exercised not to apply excessive force against the Mechanical Stop.

i.

Open ICS38D, AFPT 1-2 TRIP THROTTLE.

j.

Turn ICS38D, AFPT 1-2 TRIP THROTTLE handwheel 1/4 turn closed.

k.

Seal ICS38D, AFPT 1-2 TRIP THROTTLE handwheel.

l.

Verify ICS38D, AFPT 1-2 TRIP THROTTLE is reset, AND sealed open.

IV Independent Verification by Date

m.

Check the following:

Computer Point S017, AFPT 2 OVERSPEED, indicates NORM.

Computer Point Z002, AFPT 2 STOP/GOV/STM IN ISO VLVS, indicates NORM.

Annunciator, AFPT 2 OVRSPD TRIP (10-2-H), is EXTINGUISHED.

Annunciator, AFP 2 TRBL (10-4-H), is EXTINGUISHED.

5.12.4 IF AFPT 2 has been reset following an overspeed trip, THEN GO TO Subsection 5.10, AFW Train 2 Operation following Automatic Start.

Subsection 5.12 completed by Date

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