ML25290A124

Updated Final Safety Analysis Report, Rev. 72, Questions 442

ML25290A124
Person / Time
Site:	Susquehanna
Issue date:	10/13/2025
From:	Talen Energy, Susquehanna
To:	Office of Nuclear Reactor Regulation
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Text

SSES-FSAR QUESTION 442.1 Provide a diagram of the control area that indicates the area designated "at the controls. 11

RESPONSE

Figure 442.1-1 illustrates the area designated "at the controls."

Rev. 46, 06/93 442.1-1

Security-Related Information Figure Withheld Under 10 CFR 2.390 SUSQUEHANNA STEAM ELECTRIC STATION UNITS 1 & 2 FINAL SAFETY ANALYSIS REPORT MAIN CONTROL ROOM FIGURE 442.1-1

Security-Related Information Figure Withheld Under 10 CFR 2.390 FIGURE 442.1-1 MAIN CONTROL ROOM SUSQUEHANNA STEAM ELECTRIC STATION UNITS 1 & 2 FINAL SAFETY ANALYSIS REPORT

SSES-FSAR QUESTION 442.2 The description of administrative procedures should include Fire Protection and Temporary Procedures of an administrative nature.

RESPONSE

A revision to FSAR Subsection 13.5.1.3 has been made to include fire protection and temporary procedures as topics addressed by administrative procedures.

Rev. 46, 06/93 442.2-1

SSES-FSAR QUESTION 442,3 Figure 442.1-1, submitted by Revision 4, does not adequately define the "at the controls" area.

For example, an operator should not routinely enter areas behind control panels, yet Figure 442.1-1 shows the area behind panel 1Z651 (2Z651) as being "at the controls." It does not appear that an operator would have an unobstructed view of the control panels from this position.

Revise Figure 442.1-1 to indicate the surveillance area (an area where continuous attention can be given to reactor operator conditions and to the manipulations at reactor controls) and areas which may be entered by the operator at the controls to verify receipt of an annunciator alarm or initiate corrective action in the event of an emergency.

Please note that Regulatory Guide 1.114, "Guidance on Being Operator at the Controls of a Nuclear Power Plant," provides information on this subject.

RESPONSE

Figure 442.1-1 is an accurate description of the control room area defined as "at the controls." Panels 1Z651 and 2Z651 are in fact typers that stand approximately waist-high and in no way obstruct the operator's view at the control panels.

The operator has a significant need to have access to the 4 typers in this area to obtain information vital to the safe operation of the plants. Regulatory Guide 1.114 was used extensively in the preparation of the FSAR, and it is our opinion that we are in complete compliance with this publication.

Rev. 46, 06/93 442.3-1