ML24045A083
| ML24045A083 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 01/29/2024 |
| From: | NRC/RGN-III/DORS/OB |
| To: | Energy Harbor Nuclear Corp |
| Greg Roach | |
| Shared Package | |
| ML22251A151 | List: |
| References | |
| L-24-029 | |
| Download: ML24045A083 (1) | |
Text
Form 2.3-3 Operating Test Review Worksheet (JPMs) 1 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation SRO ADMIN LOD REF IC TSK CUE CS TL A1.1 - Determine License Status A
N 2
X X
E S
NRC: Site Training Procedure requirements deviate from those listed in the NUREG and the sites business practice procedure. Training procedure is more restrictive. Recommend removing training procedure from list of given references.
Response: Removed Training Procedure from list of references given. References given will be NUREG 1021 and site business practice procedure. Those are aligned.
Validation Comments: Initiation Cue between examiner copy and candidate copy is different for SRO-2. Please reconcile.
Response: Initiating cues reconciled for SRO 2.
A1.2 - Review Fuel Shuffle A
N 4
X E
S NRC: Based on pre-validation, portions of this JPM are not completed by SROs on shift. Recommend removing affected portion of JPM.
Response: Removed affected portion of JPM. JPM still contains required number of critical steps.
Validation Comments: Add Tech Spec Bases to references list, Replace determine to evaluate on Performance Step 1, add status of and change year to 2024 in performance step 3.
Response: Added TS Bases, replaced with evaluate in step 1, and changed all years to 2024.
A2 - Review PMT Requirements A
N 4
S NRC: No comments.
Response: N/A A3 - Perform Rad Release Admin Checks A
N 2
X E
S NRC: Should page 2 of 2 of Attachment 20 be completed, to sign Step 4.2.12?
Response
Yes, operator aid updated.
Form 2.3-3 Operating Test Review Worksheet (JPMs) 2 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation SRO ADMIN LOD REF IC TSK CUE CS TL A4 - Determine PARs A
N 3
E S
NRC: Modify the JPM to avoid doing multiple tasks for a JPM requiring time critical actions. Recommend modifying JPM to evaluate one task.
Response: Modified JPM to include only one task Validation Comments: Add a separate line to the EVALUATOR initiating cue, Classification Time is ____
Response: Added classification time fill in on the EXAMINER cue sheet.
Early Look Unsat Enhancement Satisfactory Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation RO ADMIN LOD REF IC TSK CUE CS TL A1.1 - Calculate SG Tube Leak A
N 2
S NRC: No comments.
Response: N/A Validation Comments: Change range on Performance Step 6 to 2.0 - 2.2 and change Revision listed in initiating cue to
- 25.
Response: Ranges corrected and revision number removed from cue sheets.
A1.2 - Plot and Evaluate 1/M Plot A
N 2
S NRC: No comments.
Response: N/A
Form 2.3-3 Operating Test Review Worksheet (JPMs) 3 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation RO ADMIN LOD REF IC TSK CUE CS TL A2 - Perform a Leak Isolation A
N 3
X X
U S
NRC:
- 1. Discussion of the status of pump 1 does not match the cue which asks which valves are to be isolated.
- 2. MOVs CC5097 and CC2645 are shown on the answer key as needing to be shut if CC1 was able to be shut but are not listed in the performance standard for JPM critical step 3.
- 3. What about CC35 if CC32 is not used?
Response
- 1.
Reworded cue and updated JPM steps to have #1 running.
- 2. CC5097 and CC2645 are NC when CCW Pump 2 is running and will auto close if CCW Pump 1 was running therefore they were not listed.
Made a note for clarification.
Updated Answer Key.
- 3. CC35 and CC4 will be closed if CCW Pump 3 is aligned as 2 which is in the initial cue.
Made a note for clarification.
Validation Comments: Add DB-OP-06262 to available references Response: Reference added.
A3 - Stay Time Calculation A
N 2
S NRC: No comments.
Response: N/A Validation Comments: Remove the range from performance steps 1 and 4.
Response: Ranges removed from steps 1 and 4.
Early Look Unsat Enhancement Satisfactory
Form 2.3-3 Operating Test Review Worksheet (JPMs) 4 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation CONTROL ROOM/SIM LOD REF IC TSK CUE CS TL
- a. Deborate the RCS S
Y 2
S NRC: No comments.
Response: N/A Validation Comments: Alternate path statement, change positive to negative
Response
- b. Manually actuate SFAS Levels 1 & 2 S
N 2
X E
S NRC: Task standard is SAT; however, enhance to specify boundary condition (conditions for failure).
Evaluator Note/Cue needed in case the applicant mis-operates incorrect component to recover.
Response: Task Standard revised to include statement of failure if SFAS Level 3, 4, or 5 equipment actuated. Instructor note added, that inadvertent channels taken to trip may be reset if applicant requests permission to do so.
Validation Comments: Ensure the correct examinee cue sheet is correct (was not the correct one during validation)
Response: Correct cue sheet provided in JPM.
- c. Perform boron equalization S
Y 3
X E
S NRC: Task standard is SAT; however, enhance to specify boundary condition (conditions for failure).
Response: Failure criteria for receiving a low pressure reactor trip was added to the Task Standard.
Form 2.3-3 Operating Test Review Worksheet (JPMs) 5 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation CONTROL ROOM/SIM LOD REF IC TSK CUE CS TL
- d. Initiate flow from BWST on loss of DHR S
Y 3
X X
X E
S RO Only NRC: Task standard is SAT; however, enhance to specify boundary condition (conditions for failure).
Evaluator Note/Cue needed in case the applicant mis-identifies incorrect procedure section to be implemented.
Performance step 6 and 8 are critical steps. Change to critical steps.
Response: Step 6 made critical, cue added for procedure section.
NRC: Step 8 still not marked as critical.
Response: - Fixed Validation Comments: Delete first bullet from Additional Setup on page 2, add a cue for another operator will complete this task performance step 17, numbering issue after performance step 14.
Response: Setup for SPDS clarified, numbering corrected for JPM steps, and examiner cue added about another operator completing the task.
- e. Cooldown using TBVs S
Y 3
X X
E S
NRC: Task standard is SAT; however, enhance to specify boundary condition (conditions for failure).
Delay time for trigger to initiate alt path is too long.
Recommend shortening the delay time.
Performance step 4 is a critical step. Change to a critical step.
Response: Delay time changed to 3 minutes. Task Standard enhanced to include transfer to AVVs prior to SFRCS actuation.
NRC: Step four still not marked as critical.
Response: - Fixed
Form 2.3-3 Operating Test Review Worksheet (JPMs) 6 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation CONTROL ROOM/SIM LOD REF IC TSK CUE CS TL
- f.
Manually start CSS trains S
N 2
X X
E S
NRC: No performance step to block the discharge valves.
Recommend adding a performance step to block.
Performance Step 8 has a copy and paste error.
Recommend correcting this error.
Response: Copy and paste error corrected on step 8.
NRC: No step to press BLOCK of CS Discharge valves added.
Response: Not required to press the Block PBs.
Added a note to JPM steps 2 and 6.
- g. Restore power to D2 (LOOP)
S Y
3 X
X S
NRC: Task standard is SAT; however, enhance to specify boundary condition (conditions for failure).
Performance step 7 is a critical step.
Add evaluator note/cue for deviation from procedure to nameplate identification.
Response: Task Standard enhanced. Step 7 made critical. Evaluator note made for equipment nomenclature discrepancy.
N 2
S NRC: No comments.
Response: N/A Early Look Unsat Enhancement Satisfactory
Form 2.3-3 Operating Test Review Worksheet (JPMs) 7 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation INPLANT LOD REF IC TSK CUE CS TL
- i.
Perform WGDT 3 release P
N 3
X E
S NRC: Add periods on two sentences in initial conditions without punctuation.
Response: - Fixed Validation Comments: Discrepancy noted on initial conditions for FIC1821 (some had FIC1821A which is not the correct one), add to the cue on performance step 1 that if the candidate requests the position indication of valves 1840, 1819, and 1820 (in step 4.3.19.c) of an open indication, add an initial indication cue for FYIS1822 of zero to performance step 2, modify cue to read The SM directs you to stop the release and secure the lineup on performance step 5, include a copy of the procedure to the examiner copy.
Response: Cues added as indicated above for steps 1, 2, and 5.
- j.
Reset overspeed trip and TTV for AFW pump P
N 3
X E
S NRC: Discuss with facility about need to make steps critical (JPM Step 8, 11, 12).
Response
Step 8 was marked C, changed to not Critical.
Step 11 changed to C. This step ensures the valve will not get stuck on the backseat.
Step 12 is not required to be critical. It does not affect valve operation. It is a lock wire used as a human performance tool to prevent mis-operation.
Validation Comments: Add a picture of the tappet to the examiner copy of the JPM, change the validation time to 15 min, modify performance step 9 to read like a communication from the MCR giving direction to open ICS38D.
Response: Cue for step 9 modified to indicate control room communication. Validation time changed to 15 minutes. Picture to be provided.
Form 2.3-3 Operating Test Review Worksheet (JPMs) 8 Facility: Davis-Besse Exam Date: January 2024 1
JPM # or title 2
Type (S/P/A) 3 ALT (Y/N) 4 LOD (1-5) 5 JPM Errors 6
U/E/S 7
Explanation INPLANT LOD REF IC TSK CUE CS TL
N 2
S NRC: No comments.
Response: N/A Validation Comments: Change validation time to 25 minutes, add a cue to performance step one to include an explanation on how to obtain the key AND ensure the examiner has the key to give to the candidate, add a description of the status of CT2955 for a loss of SW event (facility to research the expected position of the valve)if the expected position of that valve is open then this step will NOT be criticalif the valve is expected to be closed then the guide needs to be modified to open the valve (remove the if used).
Response: Validation time changed to 25 minutes.
Cues for obtaining a key were added to performance step 1, cue for condition of valve CT2955 added and step made not critical.
Early Look Unsat Enhancement Satisfactory
Form 2.3-3 Operating Test Review Worksheet (JPMs) 9 Form 2.3-3 Instructions for Completing the JPM Table
- 1. Enter the JPM number and/or title.
- 2. Enter the type of JPM(S)imulator, (P)lant, or (A)dministrative.
- 3. Enter (Y)es or (N)o for an Alternate Path JPM.
- 4. Rate the level of difficulty (LOD) of each JPM using a scale of 1-5 (easy-difficult). A JPM containing less than two critical steps, a JPM that tests solely for recall or memorization, or a JPM that involves directly looking up a single correct answer is likely LOD = 1 (too easy).
Conversely, a JPM with over 30 steps or a JPM that takes more than 45 minutes to complete is likely LOD = 5 (too difficult).
- 5. Check the appropriate block for each JPM error type, using the following criteria:
LOD = 1 or 5 is unsatisfactory (U).
REF: The JPM lacks required references, tools, or procedures (U).
IC: The JPM initial conditions are missing or the JPM lacks an adequate initial cue (U).
CUE: The JPM lacks adequate evaluator cues to allow the applicant to complete the task, or the evaluator cues are subjective or leading (U).
TSK: The JPM lacks a task standard or lacks completion criteria for a task standard (U).
CS: The JPM contains errors in designating critical steps, or the JPM lacks an adequate performance standard for a critical step (U).
TL: The JPM validation times are unreasonable, or a time-critical JPM lacks a completion time (U).
- 6. Mark the JPM as unsatisfactory (U), satisfactory (S), or needs enhancements (E). A JPM is (U) if it has one or more (U) errors as determined in step 5. Examples of enhancements include formatting, spelling, or other minor changes.
- 7. Briefly describe any JPM determined to be unsatisfactory (U) or needing enhancement (E).
Save initial review comments and detail subsequent comment resolution so that each exam-bound JPM is marked by a satisfactory (S) resolution on this form.
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 10 Facility: Davis-Besse Scenario: # 1 100% Rx. Power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario Event Errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS Swap MFPT Main Oil Pumps S
Normal Event NRC: No comments.
Response: N/A Validation Comments: Remove one of the MFW LO pump shifts (only do one), fix local operator step number, add and stable to local operator actions Response: Added notes to insert event 2 after the first set of LO pumps are swapped, added and stable to field indications, and corrected step numbers.
SFAS BWST Level Fails High (TS)
E S
NRC: Include the Function # in the TS section for this event Response: Function 5 added to 3.3-2.
Validation Comments: Add the report the BOP will give when he reports conditions on the back panels.
Response: Added expected BOP report on back panel conditions.
RCP Injection Flow Transmitter Fails Low S
NRC: Spelling error on annunciator cue (INK vie INJ).
MC - ATC manual control of RCP Seal injection.
Response: Spelling error fixed.
Added MC for ATC Condensate Pump 3 High Bearing Temp /
Reduce Power S
Reactivity Event (ATC)
NRC: No comments.
Response: N/A Validation Comments: Change page numbering on page 2.
Response: Page number corrected.
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 11 Facility: Davis-Besse Scenario: # 1 100% Rx. Power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario Event Errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS SG Tube Leak (approx. 10 gpm)
(TS)
S NRC: No comments.
Response: N/A SG Tube Rupture (CT)
S Major Event NRC: No comments.
Response: N/A SG 1 Startup Valve Fails Closed (CT)
X E
S NRC: Need to determine at what point the component malfunction will be inserted to ensure equity for all runs of this scenario.
MC - BOP manual control of SG1 level.
Response: Event will be inserted with a time delay after the reactor is tripped.
Added MC for BOP.
NRC: Please add to the 3.3-1 and 3.3-2 how long the time delay is.
Response: Done
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 12 Facility: Davis-Besse Scenario: # 2 Rx Startup SPARE SCENARIO Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS E
S NRC: Add MUP 2 OOS to initial conditions.
Remove Breaker ABDC1 OOS from initial conditions.
Remove CT #2 and re-number as appropriate.
Response: Initial conditions modified for breaker ABDC1 and MUP 2.
CT #2 removed from scenario Validation Comments: Fix turnover sheet to include venting FW bonnets in progress and remove MFW LO pumps.
Response: Turnover sheet corrected as requested.
Power ascension to 10%
S Reactivity Event (ATC)
NRC: No comments.
Response: N/A Validation Comments: Remove reactivity SRO, add SM injection point at 8% to place FRVs in service. Fix page numbering (combined events 1&2)
Response: Reactivity SRO removed from scenario, SM injection created, and page number corrected.
Place MFRVs in service S
Normal Event NRC: No comments.
Response: N/A Broken oil sight glass for HPI pump 2 (TS)
S NRC: No comments.
Response: N/A
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 13 Facility: Davis-Besse Scenario: # 2 Rx Startup SPARE SCENARIO Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS Condensate deaerator level control transmitter fails S
NRC: No comments MC - BOP manually control deaerator storage tank level.
Response: MC added for BOP PRNI 5 fails high (TS)
E S
NRC: Remove function 1b from TS 3.3.1 and annunciator 5-2-H.
Response: Function 1b and annunciator 5-2-H removed from 3.3-1.
Validation Comments: Termination criteria (page
- 8) replace with with will Response: Replaced.
TPCW service water pipe rupture S
Major Event NRC: No comments.
Response: N/A Validation Comments: Page 9, isolate TPCW/SW add Attachment 15.
Response: Attachment 15 added.
AFW Pump 2 fails to auto start S
NRC: No comments.
MC - BOP manually starts AFW Pump 2.
Response: MC added for BOP C2 Lockout -
EDG CCW pump fails to auto start (CT)
S NRC: No comments.
MC - ATC manually starts CCW Pump 1.
Response: MC added for ATC Validation Comments: Page 12, remove HPI pump 2 and open bullet HP2A and B and DH63 Response: Corrected for inoperable HPI train 2.
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 14 Facility: Davis-Besse Scenario: # 2 Rx Startup SPARE SCENARIO Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS LOCA / Loss of SCM S
NRC: No comments.
Response: N/A Start HPI Pump 1 (CT)
E S
NRC: No comments.
MC - ATC manually starts HPI Pump 1.
Response: N/A NRC: Spelling error on pg 21 (RUPTUR).
Response: Fixed.
Validation Comments: Open bullet DH63 on page 19 Response: DH63 status updated.
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 15 Facility: Davis-Besse Scenario: # 3 80% power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS E
S NRC: Add MUP2 OOS to initial conditions.
Modify CT #1 from procedure step to prior to tripping Main Turbine.
Modify scenario termination from SG level to attachment 8 complete.
Response: MUP2 OOS added to IC.
CT#1 modified.
Termination point modified.
Validation Comments: Event 2 remove MC from event from ATC, on CT2 success path replace immediate actions with Specific Rule 6 step 6.2, executive summary event 2 change low to mid-scale, provide engineering assessment that being on alt power does not make any equipment inoperable, event 8 remove fast bus transfer, adjust safety significance statement for CT1, executive summary event 7 remove all mention of fast bus transfer.
Response: All changes made.
Swap substation power from alt to normal power S
Normal Event NRC: No comments.
Response: N/A Loop 1 MFW flow indication fails mid-scale E
S NRC: Add ICS in track and cross-limit annunciators to the cue. Add actions to clear annunciator 14-4-E.
MC - ATC control rod control panel in HAND MC - BOP control MFW Demand in HAND Response: ICS and X-Limit annunciators added to cue.
MC added for ATC.
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 16 Facility: Davis-Besse Scenario: # 3 80% power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS MC added for BOP Validation Comments: Add annunciator 14-2-F to Symptoms/cues, add DB-OP-06407 steps into the guide to select the good channel
Response
NRC: Annunciator 14-4-C Limited is mis-spelled, please correct.
Response: Fixed.
NRC: Limited still misspelled on pages 2 and 3 of this event.
Response: Fixed.
CSS oil leak (TS)
S NRC: No comments.
Response: N/A 10 gpm unidentified leak in RCS (TS)
S NRC: No comments.
Response: N/A Rapid shutdown due to RCS leak S
Reactivity Event (ATC and BOP)
NRC: No comments.
Response: N/A Validation Comments: Termination cue, fix events remove the s Response: Corrected.
LOCA inside containment (MAJOR)
E S
Major Event NRC: Add steps from Attachment 8.
Response: Steps from Attachment 8 have been added.
Validation Comments: Page 12 under Attachment 8 actions, add for train energized
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 17 Facility: Davis-Besse Scenario: # 3 80% power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS Response: Moved Att 8 actions to later in scenario after bus energized and added note.
RPS fails to trip the reactor (CT)
S NRC: No comments.
MC - ATC manually trips the reactor during ATWS.
Response: MC added for ATC.
LOOP / Both EDGs fail to start (CT)
S NRC: Ensure scenario guide contains the steps to restore power to both C1 and D1.
MC - BOP manually restores power to C1 or D1 with the SBODG.
Response: MC added for BOP.
AF6452 fails open due to failed SG level instrument S
NRC: No comments.
MC - BOP manually controls AFP1 speed.
Response: N/A
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 18 Facility: Davis-Besse Scenario: # 4 92% Rx Power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS X
U S
NRC: Regarding CTs:
Remove CT #1 (low safety significance)
Modify new CT #1 to prior to SFAS initiation.
Modify new CT #2 to add within 10 minutes of THOT exceeding 600°F.
Response: All CTs modified as requested Validation Comments: FOR ALL SCENARIOS, add a step to check placards to the simulator setup Response: Added to Scenario Executive Summary Initial Conditions / Turnover as needed.
Swap running condensate pumps S
Normal Event NRC: No comments.
Response: N/A RCS Pressure NNI input fails low (TS)
X E
S NRC: Remove bypassing RPS channel from the guide. Add annunciators 5-3-G and 4-4-C.
Add Function(s) required for TS 3.3.1 entry.
MC - ATC takes manually pressurizer pressure control.
Response: Bypassing RPS removed from guide.
Annunciator 5-3-G added.
MC added for ATC.
NRC: Please add:
Affected functions for T.S. 3.3.1 Annunciator 4-4-C to Cue
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 19 Facility: Davis-Besse Scenario: # 4 92% Rx Power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS Response: - Done Validation Comments: Add annunciator 5-3-J to symptoms/cues, add functions 4 and 5 to TS 3.3.1 Response: Annunciator added and TS 3.3.1 Functions 4 and 5 added.
A group 5 control rod drops fully into the core (TS)
X E
S Reactivity Event NRC: Add TS 3.4.9 to the scenario guide in case PZR level TS tolerance is exceeded.
Required entry is for TS 3.1.7 Condition A not B.
Response: T.S. 3.4.9 added to guide.
Correction made to T.S. 3.1.7 Validation Comments: Add annunciator 14-2-F to symptoms/cues, add adjust to May MU32 Response: Annunciator 14-2-F added and set added to May MU32.
Second control rod drops into the core S
Major Event NRC: No comments.
Response: N/A Main Turbine fails to trip (CT)
X E
S NRC: No comments.
MC - ATC manually trips the Main Turbine when it fails to auto trip.
Response: MC added to ATC NRC: Add ** Critical Task notation for Initiate and Isolate SFRCS.
Response: - Done
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 20 Facility: Davis-Besse Scenario: # 4 92% Rx Power Exam Date: January 2024 1
Scenario Event ID/Name 2
Scenario event errors 3
U/E/S 4
Explanation Realism/
Credibility Performance Standards Verifiable Actions Critical Task TS Loss of all feedwater / loss of both MUPs S
NRC: Change MUP sheared shaft to tripped upon start.
Response: Change made Initiate HPI/MU cooling (CT)
E S
NRC: Update scenario guide to indicate event 7 on pages 11 and 12. Can say both events 6 and 7 for those pages.
Response: Change made
Form 2.3-3 Operating Test Review Worksheet (Scenarios) 21 Form 2.3-3 Instructions for Completing the Scenario Table
- 1. For each scenario, enter the scenario event names and descriptions.
- 2. Review the individual events contained in each scenario, and identify and mark event errors:
The scenario guide event description is not realistic/credibleunsatisfactory (U).
The scenario guide event description lacks adequate crew/operator performance standardsneeds enhancement (E).
The scenario guide event description lacks verifiable actions for a credited normal event, reactivity event instrument/component malfunction, or technical specification (TS) event (or a combination of these) (U).
The scenario guide event description incorrectly designates an event as a critical task (i.e., a noncritical task labeled as critical or a critical task labeled as noncritical).
This includes critical tasks that do not meet the critical task criteria (i.e., the critical task does not have a measurable performance standard) (U).
The scenario guide event description incorrectly designates entry into TS actions when not required or does not designate entry into TS actions when required (U).
- 3. Based on the outcome in step 2, mark the scenario event as unsatisfactory (U), satisfactory (S), or needs enhancements (E). An event is (U) if it has one or more (U) errors as determined in step 2. Examples of enhancements include formatting, spelling, or other minor changes.
- 4. Briefly describe any scenario event determined to be unsatisfactory (U) or needing enhancement (E). Save initial review comments and detail subsequent comment resolution so that each exam-bound scenario event is marked by a satisfactory (S) resolution on this form.