ML21005A023

ES-301-2 RO

ML21005A023
Person / Time
Site:	LaSalle
Issue date:	12/01/2020
From:	Gregory Roach Operations Branch III
To:	Exelon Generation Co, NRC/RGN-III/DRS/OLB
Roach G
Shared Package
ML19127A359	List: ML21005A020 ML21005A022 ML21005A023 ML21005A026 ML21005A039 ML21005A040 ML21005A043 ML21005A046
References
Download: ML21005A023 (2)

Text

ES-301 Control Room/In-Plant Systems Outline Form ES-301-2 Facility: LaSalle Date of Examination: 11/2020 Exam Level: RO SRO-I SRO-U Operating Test Number: 2020301 Control Room Systems:* 8 for RO, 7 for SRO-I, and 2 or 3 for SRO-U System/JPM Title Type Code* Safety Function

a. Start HPCS with failure of manual pushbutton (S-HP-05) A, D, EN, L, S 2

[209002 A4.05 3.8/3.8]

b. Start Off-Gas with Main Steam High Radiation (S-OG-02) A, D, L, S 9

[271000 A2.03 3.5/3.8]

c. Use the Main Condenser as a Heat Sink in an ATWS (S-MS-06) D, E, S 3

[239001 A2.03 4.0/4.2]

d. Bypass a Failed Local Power Range Monitor (S-NR-01) D, S 7

[215005 A4.04 3.2/3.2]

e. Monthly Notch Withdrawal Surveillance (S-RD-01) D, S 1

[201002 A4.01 3.5/3.4]

f. Establish Normal Nitrogen Makeup to the Drywell (S-VQ-14) M, S 5

[223001 A4.10 3.2/3.2]

g. Respond to Loss of Bus 142X (S-AP-07) A, D, S 6

[295003 AA2.01 3.4/3.7]

h. Respond to Loss of Shutdown Cooling due to Pump Trip A, L, N, S 4

[205000 A2.06 3.4/3.5]

In-Plant Systems:* 3 for RO, 3 for SRO-I, and 3 or 2 for SRO-U

i. Remove Fuses for a Stuck Open SRV (P-NB-01) P, E, R 3

[239002 A2.03 4.1/4.2] LaSalle 2016 NRC ILT Exam

j. Defeat RCIC Isolations IAW LGA-RI-101 (P-RI-02) D, E, R, L 2

[295031 EA1.05 4.3/4.3]

k. Respond to low Service Water Pressure due to Failed Open TCV A, N, E, R 8 IAW LOA-WS-101 [400000 K6.01 2.7/2.8]

• All RO and SRO-I control room (and in-plant) systems must be different and serve different safety functions, all five SRO-U systems must serve different safety functions, and in-plant systems and functions may overlap those tested in the control room.

ES-301 Control Room/In-Plant Systems Outline Form ES-301-2

• Type Codes Criteria for R /SRO-I/SRO-U (A)lternate path 4-6/4-6 /2-3 (C)ontrol room (D)irect from bank 9/ 8/ 4 (E)mergency or abnormal in-plant 1/ 1/ 1 (EN)gineered safety feature 1/ 1/ 1 (control room system)

(L)ow-Power/Shutdown 1/ 1/ 1 (N)ew or (M)odified from bank including 1(A) 2/ 2/ 1 (P)revious 2 exams 3/ 3/ 2 (randomly selected)

(R)CA 1/ 1/ 1 (S)imulator