ML25352A040
| ML25352A040 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 12/18/2025 |
| From: | Todd Fish NRC/RGN-I/DORS/OB |
| To: | Vistra Operations Company |
| References | |
| EPID L-2025-OLL-0033 | |
| Download: ML25352A040 (0) | |
Text
Form 3.4-1 Events and Evolutions Checklist NUREG-1021, Revision 12 Page 1 of 5 BVPS Facsimile Rev. AG Facility Beaver Valley Unit 2 Date of Exam: 10/6/2025 - 10/17/2025 Operating Test No: BV2LOT25 A
P P
L I
C A
N T
E V
E N
T T
Y P
E Scenarios 1
2 3 (Spare) 4 T
O T
A L
M I
N I
M U
M(*)
CREW POSITION CREW POSITION CREW POSITION CREW POSITION S
R O
A T
C B
O P
S R
O A
T C
B O
P S
R O
A T
C B
O P
S R
O A
T C
B O
P R I U
M A
S T
E R
RX 5
6 2
1 1
0 NOR 2
1 1
1 1
I/C 1, 3, 4, 5, 6, 10, 11, 12 1, 4, 5
3, 6, 10, 11, 12 1, 2, 4, 8, 9, 10, 11, 12 2, 8, 11, 12 1, 4, 9, 10 1, 2, 3, 4, 5, 8, 9, 10, 12 1, 3, 5, 12 2, 4, 8, 9, 10 2, 3, 4, 6, 9, 10 2, 3, 6
4, 9, 10 4
4 2
MAJ 7, 8, 9 7, 8, 9
7, 8, 9 6, 7 6, 7 6, 7 7, 11 7, 11 7, 11 5, 7, 8 5, 7, 8
5, 7, 8
2 2
1 MC 5
3 2
1 1
2 3
10 1
1 0
TS 1, 4 1, 3 1, 2, 5 3, 4 0
2 2
SRO-U1 RX 0
1 1
0 NOR 0
1 1
1 I/C 1, 3, 4, 5, 6, 10, 11, 12 8
4 4
2 MAJ 7, 8, 9 3
2 2
1 MC 0
1 1
0 TS 1, 4 2
0 2
2 SRO-U2 RX 0
1 1
0 NOR 0
1 1
1 I/C 1, 3, 4, 5, 6, 10, 11, 12 8
4 4
2 MAJ 7, 8, 9 3
2 2
1 MC 0
1 1
0 TS 1, 4 2
0 2
2
Form 3.4-1 Events and Evolutions Checklist NUREG-1021, Revision 12 Page 2 of 5 BVPS Facsimile Rev. AG Facility Beaver Valley Unit 2 Date of Exam: 10/6/2025 - 10/17/2025 Operating Test No: BV2LOT25 A
P P
L I
C A
N T
E V
E N
T T
Y P
E Scenarios 1
2 3
4 T
O T
A L
M I
N I
M U
M(*)
CREW POSITION CREW POSITION CREW POSITION CREW POSITION S
R O
A T
C B
O P
S R
O A
T C
B O
P S
R O
A T
C B
O P
S R
O A
T C
B O
P R I U
SRO-I1 RX 5
1 1
1 0
NOR 0
1 1
1 I/C 1, 3, 4, 5, 6, 10, 11, 12 1, 4, 9,
10 12 4
4 2
MAJ 7, 8, 9 6, 7 5
2 2
1 MC 1
1 1
1 0
TS 1, 4 2
0 2
2 SRO-I2 RX 0
1 1
0 NOR 2
1 1
1 1
I/C 1, 4, 5
1, 2, 4, 8, 9, 10, 11, 12 11 4
4 2
MAJ 7, 8, 9
6, 7 5
2 2
1 MC 5
1 1
1 0
TS 1, 3 2
0 2
2 SRO-I3 RX 1
1 1
0 NOR 0
1 1
1 I/C 3, 6, 10, 11, 12 2, 8, 11, 12 2, 3, 4, 6, 9, 10 16 4
4 2
MAJ 7, 8, 9
6, 7 5, 7, 8
8 2
2 1
MC 3
2 2
1 1
0 TS 3, 4 2
0 2
2 SRO-I4 RX 2
1 1
1 0
NOR 0
1 1
1 I/C 1, 2, 4, 8, 9, 10, 11, 12 2, 3, 6
11 4
4 2
MAJ 6, 7 5, 7, 8
5 2
2 1
MC 3
1 1
1 0
TS 1, 3 2
0 2
2
Form 3.4-1 Events and Evolutions Checklist NUREG-1021, Revision 12 Page 3 of 5 BVPS Facsimile Rev. AG Facility Beaver Valley Unit 2 Date of Exam: 10/6/2025 - 10/17/2025 Operating Test No: BV2LOT25 A
P P
L I
C A
N T
E V
E N
T T
Y P
E Scenarios 1
2 3
4 T
O T
A L
M I
N I
M U
M(*)
CREW POSITION CREW POSITION CREW POSITION CREW POSITION S
R O
A T
C B
O P
S R
O A
T C
B O
P S
R O
A T
C B
O P
S R
O A
T C
B O
P R I U
SRO-I5 RX 0
1 1
0 NOR 1
1 1
1 1
I/C 1, 2, 4, 8, 9, 10, 11, 12 4, 9, 10 11 4
4 2
MAJ 6, 7 5, 7, 8
5 2
2 1
MC 10 1
1 1
0 TS 1, 3 2
0 2
2 RO-R1 RX 5
1 1
1 0
NOR 2
1 1
1 1
I/C 1, 4, 5
1, 4, 9,
10 7
4 4
2 MAJ 7, 8, 9
6, 7 5
2 2
1 MC 5
1 2
1 1
0 TS 0
0 2
2 RO-R2 RX 0
1 1
0 NOR 0
1 1
1 I/C 3, 6, 10, 11, 12 2, 8, 11, 12 9
4 4
2 MAJ 7, 8, 9
6, 7 5
2 2
1 MC 3
2 2
1 1
0 TS 0
0 2
2
Form 3.4-1 Events and Evolutions Checklist NUREG-1021, Revision 12 Page 4 of 5 BVPS Facsimile Rev. AG Facility Beaver Valley Unit 2 Date of Exam: 10/6/2025 - 10/17/2025 Operating Test No: BV2LOT25 A
P P
L I
C A
N T
E V
E N
T T
Y P
E Scenarios 1
2 3
4 T
O T
A L
M I
N I
M U
M(*)
CREW POSITION CREW POSITION CREW POSITION CREW POSITION S
R O
A T
C B
O P
S R
O A
T C
B O
P S
R O
A T
C B
O P
S R
O A
T C
B O
P R I U
RO-R3 RX 5
1 1
1 0
NOR 2
1 1
1 1
I/C 1, 4, 5
1, 4, 9, 10 7
4 4
2 MAJ 7, 8, 9
6, 7 5
2 2
1 MC 5
1 2
1 1
0 TS 0
0 2
2 RO-R4 RX 0
1 1
0 NOR 0
1 1
1 I/C 3, 6, 10, 11, 12 2, 8, 11, 12 9
4 4
2 MAJ 7, 8, 9 6, 7 5
2 2
1 MC 3
2 2
1 1
0 TS 0
0 2
2 0
1 1
0 0
1 1
1 0
4 4
2 0
2 2
1 0
1 1
0 0
0 2
2 RX 1
1 0
NOR 1
1 1
I/C 4
4 2
MAJ 2
2 1
MC 1
1 0
TS 0
2 2
Form 3.4-1 Events and Evolutions Checklist NUREG-1021, Revision 12 Page 5 of 5 BVPS Facsimile Rev. AG Form 3.4-1 Instructions for the Events and Evolutions Checklist
- 1.
Mark the applicant license level for each simulator operating test number.
- 2.
For the set of scenario columns, fill in the associated event number from Form 3.3-1, Scenario Outline, to show the specific event types being used for the applicant while in the assigned crew position for that scenario.
- Minimums are subject to the instructions in Section C.2, License Level Criteria.
KEY:
RX = Reactivity Manipulation NOR = Normal Evolution I/C = Instrument/Component Failure MAJ = Major Transient MC = Manual Control of Automatic Function TS = Technical Specification Evaluation RO = Reactor Operator SRO-I or I = Instant Senior Reactor Operator SRO-U or U = Upgrade Senior Reactor Operator SRO = Senior Reactor Operator ATC = At the Controls BOP = Balance of Plant