ML23325A022
| ML23325A022 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 05/31/2023 |
| From: | Jack Giessner NRC/RGN-III/DORS/OB |
| To: | Constellation Energy Generation |
| Travis Iskierka-Boggs | |
| Shared Package | |
| 22122A028 | List: |
| References | |
| Download: ML23325A022 (1) | |
Text
Form 4.1-1 Record of Rejected Knowledge and Abilities Refer to Examination Standard (ES)-4.2, Developing Written Examinations, Section B.3, for deviations from the approved written examination outline.
Tier/Group Randomly Selected K/A Reason for Rejection 1/2 Q20 APE.037A.1.01 Steam Generator Tube Leak Ability to operate and/or monitor the following as they apply to a Steam Generator Tube Leak:
Maximum controlled depressurization rate for the effected S/G Importance Factor: 3.8 The question topic is not covered in Byron AOPs or EOPs. During a review for relevant procedure guidance in 1BOA SEC-8, Steam Generator Tube Leak, did not find any subject matter that could reasonably used to develop a discriminating question. 1BOA SEC-8 does not provide steps to cooldown the affected Sg. Rather it directs the operators to consult with the Station Duty Officer to determine cooldown method. The choices in 1BOA SEC-8 (step 18) for cooling down the affected SG are to use Blowdown or Steam Dumps. However, no cooldown method procedure is referenced in 1BOA SEC-8.
Assuming the relevant EOPs would be used as a guide, the only reference for cooldown rate of the affected SG is in 1BEP ES-3.3, Post-SGTR Cooldown Using Steam Dumps, step 11, is to cooldown the affected SG slowly (by opening the MSIV bypass valve slowly). Slowly is not defined in terms of rate.
Suggested replacement KA:
APE037A.1.16 - Steam Generator Tube Leak Ability to operate and/or monitor the following as they apply to a Steam Generator Tube Leak: RCS Use of this KA will maintain exam integrity, point totals and outline balance, being in the same tier, group, APE and K/A topic (K.1).
NRC: APE037AA1.16 selected as new K/A 2/1 Q86 SYS.004 G2.1.18 CVCS Ability to make accurate, clear, and concise logs, records, status boards, and reports.
When attempting to create a question for this K/A, it was not possible (without expending an unreasonable amount of resources) to prepare a psychometrically sound question related to the subject K/A.
Suggested replacement KA:
SYS.004 G2.4.4 - CVCS Ability to recognize abnormal indications for system operating parameters that are entry-level conditions for emergency and abnormal operating procedures.
Use of this KA will maintain exam integrity, point totals and outline balance, being in the same tier, group, and K/A category (Generic).
NRC: 004G2.4.4 selected as new K/A
2/2 Q92 SYS.027A2.01 CIRS Containment Iodine Removal System Ability to (a) predict the impacts of the following on the Containment Iodine Removal System and (b) based on those predictions, use procedures to correct, control, or mitigate the consequences of those abnormal operations:
High temperature in the filter system The CIRS has been abandoned in place at Byron Station.
The filters and associated hardware have been removed, and fire protection to the filters isolated.
Suggested replacement KA:
SYS.035A2.01 - S/G Steam Generator System Ability to (a) predict the impacts of the following on the Steam Generator System and (b) based on those predictions, use procedures to correct, control, or mitigate the consequences of those abnormal operations: Faulted, leaking, or ruptured S/G Use of this KA will maintain exam integrity, point totals and outline balance, being in the same tier, group, and K/A topic (A2.01).
NRC: 035A2.01 selected as new K/A
ES-4.1, Page 28 of 28