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2016 Byron Nuclear Station Initial License Examination Form ES-301-2 RO Rev 0
	ML16116A076
Person / Time
Site:	Byron
Issue date:	03/23/2016
From:	Bielby M; Operations Branch III
To:	; Exelon Generation Co
References
	Download: ML16116A076 (1)
	v • d • e

ES-301 Control Room/In-Plant Systems Outline Form ES-301-2 Facility: Byron NRC 2016 Date of Examination: 3/14/2016 Exam Level: RO SRO-I SRO-U Operating Test No.: Byron 2016301 Control Room Systems:* 8 for RO; 7 for SRO-I; 2 or 3 for SRO-U System / JPM Title Type Code* Safety Function

a. Realign RCCA S, D 1 003AA1.02 Ability to operate and/or monitor the following as they apply to the Dropped Control; Rod: Controls and componenets necessary to recover rod. 3.6/3.4 Bank

b. Switch to Hot Leg Recirculation S, P, D, EN, L 2 011EA1.11 Ability to operate and monitor the following as they apply to a Large Break LOCA: Long-term cooling of core. 4.2/4.2 Bank - 2013 NRC

c. SI pump ASME startup (with cavitation indication) S, D, EN, A 3 006A2.04 Ability to (a) predict the impacts of the following malfunctions or operations on the Emergency Core Cooling System; and (b) based on those predictions, use procedures to correct, control, or mitigate the consequences of those malfunctions or operations: Improper discharge pressure. 3.4/3.8 Bank

d. Respond to RCP seal malfunction S, D 4P 015AA1.22 Ability to operate and/or monitor the following as they apply to the Reactor Coolant Pump Malfunctions: RCP seal failure/malfunction. 4.0/4.2 Bank

e. Switch running SX pumps - with failure to develop pressure (BOP S, N, A 4S SX-9) 076A4.01 Ability to manually operate and/or monitor in the control room: SWS pumps. 2.9/2.9 NEW

f. Start MDCT fans and align risers w/ shut down of 2 RCFCs S, D, EN, L, A 5 022A4.01 Ability to manually operate and/or monitor in the control room: CCS fans. 3.6/3.6 Bank

g. Supply Non-ESF Bus from ESF Bus (Post-LOCA) S, N, EN, L 6 062A4.01 Ability to manually operate and/or monitor in the control room: All breakers (including available switchyard). 3.3/3.1 NEW

h. CW Pump trip with discharge valve failure to auto close S, N, A 8 075A2.02 Ability to (a) predict the impacts of the following malfunctions or operations on the Circulating Water System; and (b) based on those predictions, use procedures to correct, control, or mitigate the consequences of those malfunctions or operations: Loss of circulating water pumps. 2.5/2.7 NEW In-Plant Systems* (3 for RO); (3 for SRO-I); (3 or 2 for SRO-U)

i. Trip Reactor outside the MCR (Open MCC breakers) M, E, A 1 029EA1.12 Ability to operate and monitor the following as they apply to an ATWS: M/G set power supply and reactor trip breakers. 4.1/4.0 Modified from 2013 NRC

j. Transfer instrument bus to CVT supply D, E 6 057AA1.01 Ability to operate and monitor the following as they apply to the Loss of Vital AC Instrument Bus: Manual inverter swapping.

3.7/3.7 Bank

k. Manual makeup to CC surge tank from backup SX system R, E, N, A 8 008K4.02 Knowledge of CCWS design feature(s) and/or interlocks which provide for the following: Operation of the surge tank, including the associated valves and controls. 2.9/2.7 NEW

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; in-plant systems and functions may overlap those tested in the control room.

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

(L)ow-Power / Shutdown 3 1/1/1 (N)ew or (M)odified from bank including 1(A) 5 2/2/1 (P)revious 2 exams 1 3 / 3 / 2 (randomly selected)

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