ML18068A692

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Attachment 6 - List of Regulatory Commitments
ML18068A692
Person / Time
Site: Callaway Ameren icon.png
Issue date: 03/09/2018
From:
Ameren Missouri, Union Electric Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML18068A685 List:
References
ULNRC-06401, CAC MF8118, CAC MF8119
Download: ML18068A692 (1)


Text

Attachment 6 to ULNRC-0640 1 Page 1 of 1 LIST OF REGULATORY COMMITMENTS The folIo ing table identifies those actions committed to h Ameren Missouri in this document. Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments. Please direct questions regarding these commitments to David Brow nawell at (3 14) 225-I $01.

Regulatory Commitment Due Date Commitment Tracking Number Planned modifications are in process to achieve the It is anticipated that the 50428 capabiliP, for one Class I E electrical equipment A/C planned modifications train to provide adeqtiate cooling for both trains of and procedure revisions electrical eqttipment during normal and accident will be completed during conditions by design changes. The planned the Spring 2019 modifications include the following: Refueling Outage Computer points are used to verify the DC switchboard rooms and ES F switchgear room temperatures are less than 87°F and provide an alarm to alert Control Room personnel. The temperature limits established for these i-oorns is 87°F (this includes an allowance for instrument error of +/-3°F).

The alarm setpoint on the associated temperature indicators will be lotvered to 83°F.

2016 Level

  • Installation of four recirculation fans \\ith isolation dampers in the ESF switchgear rooms The wattage of the Control Room Presstirization heater 50429 ill be reduced to 5 +/- I KW.

Ameren Missouri will revise the Callaway Emergency 50430 Operating Procedures to provide instructions for restarting the supplemental cooling system for the case when operation of the supplemental cooling system is desired or needed due to the inoperability of a Class I E electrical equipment A/C train during or at the onset of an event/accident involving a loss of offsite power.