ML21361A124

ES-301-4

ML21361A124
Person / Time
Site:	Byron
Issue date:	10/28/2021
From:	Gregory Roach NRC/RGN-III/DRS/OLB
To:	Exelon Generation Co
Roach G
Shared Package
ML21055A845	List: ML21361A107 ML21361A116 ML21361A124 ML21361A126 ML21361A135 ML21361A157 ML21361A159 ML21361A169 ML21361A173 ML21361A177 ML21361A178
References
BYRON 2021-0041, 1.10.0101 (10 .101), 50-454/21-301, 50-455/21-301 50-454/OL-21, 50-455/OL-21
Download: ML21361A124 (1)

Text

ES-301 Simulator Scenario Quality Checklist Form ES-301-4 Facility: Byron Date of Exam: 09/27/2021 Scenario Numbers: Spare/ 2 / 3 / 4 / 5 Operating Test No.: 2021-301 QUALITATIVE ATTRIBUTES Initials a

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1.

The initial conditions are realistic in that some equipment and/or instrumentation may be out of service, ( JI t!

but it does not cue the operators into expected events.

2.

The scenarios consist mostly of related events.

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3.

Each event description consists of the following:

the point in the scenario when it is lo be initiated the malfunction(s} or conditions that are entered to initiate the event CJl i!.

the symptoms/cues that will be visible to the crew the expected operator actions (by shift position) the event termination point (if applicable) 4.

The events are valid with regard to physics and thermodynamics.

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5.

Sequencing and timing of events is reasonable and allows the examination team to obtain complete -:x; re.

evaluation results commensurate with the scenario objectives.

6.

If time compression techniques are used, the scenario summary clearly so indicates.

JA Operators have sufficient time to carry out expected activities without undue time constraints.

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A Cues are given.

7.

The simulator modeling is not altered.

L!I} (l 8.

The scenarios have been validated. Pursuant to 10 CFR 55.46(d), any open simulator performance



deficiencies or deviations from the referenced plant have been evaluated to ensure that functional fidelity is maintained while running the planned scenarios.

9.

Scenarios are new or significantly modified in accordance with Section D.5 of ES-301.

e 10.

All individual operator competencies can be evaluated, as verified using Form ES-301 *6 (submit the

 e form along with the simulator scenarios).

11. The scenario set provides the opportunity for each applicant to be evaluated in each of the applicable rating factors. (Competency rating factors as described on Forms ES-303-1 and ES-303-3.}

12. Each applicant will be significantly involved in the minimum number of transients and events specified 3Q (£ on Form ES-301 *5 (submit the form with the simulator scenarios).

13. Applicants are evaluated on a similar number of preidentified critical tasks across scenarios, when DI @

possible.

14.

The level of difficulty is appropriate to support licensing decisions for each crew position.

t\\) e Target Quantitative Attributes per Scenario (See Section D.5.d)

Actual Attributes

1.

Malfunctions after EOP entry (1-2) 2/1/2/1/1 a (J) 2.

Abnormal events (2-4) 4/4/3/4 /4 G  (P

3.

Major transients (1-2}

1/1/1/1/1 -- Ii)

4.

EOPs entered/requiring substantive actions (1-2) 2/2/1/2/1 rID @

5.

Entry into a contingency EOP with substantive actions (?. 1 per scenario 0 / 0 / 0/ 1/ 0 cw e set}

6.

Preidentified critical tasks 2}

2/2/2/2/2 rt\\. j 

• The facility licensee signature is not applicable for NRG-developed tests.

1. An independent NRC reviewer initials items in column "c"; chief examiner concurrence is required.

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