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The Perry Nuclear Power Plant has taken a … The Perry Nuclear Power Plant has taken a portion of the Plant Computer out of service for scheduled maintenance. This has resulted in a portion of ERDS being out of service. From 0025 hours EDT on March 13, 2009 for approximately 36 hours, personnel will be performing maintenance activities which result in a partial loss of the Plant Computer. During this planned maintenance, portions of the Safety Parameter Display System (SPDS) and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP) will be unavailable.</br>In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Private Branch Exchange, Off Premise Exchange, and various redundant intra-facility circuits throughout the emergency facilities. The dose assessment function will be maintained during the out of service time period by manual input of data into CADAP and, if required, by manual calculation. The ability to open and maintain an 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the period of unavailability.</br>This event is being reported in accordance with 10CFR50.72(b)(3)(xiii), as a condition that results in a major loss of offsite communication capability. A follow-up notification will be made when the maintenance activities are completed and the equipment is restored.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1132 ON 3/14/2009 FROM TONY JARDINE TO MARK ABRAMOVITZ * * *</br>The plant has extended the expected plant computer outage time by 60 hours (ending 3/16/2009 at 2400).</br>Notified the R3DO (Lara).</br>* * * UPDATE AT 1907 EDT ON 3/16/2009 FROM TOM STEC TO BILL HUFFMAN * * *</br>The licensee has extended the expected outage time for the plant computer maintenance by an additional 24 hours. Repairs are now expected to be completed by 2400 EDT on 3/17/09. </br>The licensee will notify the NRC Resident Inspector. R3DO(Ring) notified.</br>* * * UPDATE AT 1723 EDT ON 3/17/2009 FROM ANTHONY JARDINE TO BILL HUFFMAN * * *</br>The licensee states that that the plant computer and all associated functions (SPDS, CADAP, and ERDS) were returned to service at 1313 EDT on 3/17/09. The licensee has notified the NRC Resident Inspector.</br> R3DO(Ring) notified. Resident Inspector.
R3DO(Ring) notified.
04:25:00, 13 March 2009 +
44,905 +
00:42:00, 13 March 2009 +
04:25:00, 13 March 2009 +
The Perry Nuclear Power Plant has taken a … The Perry Nuclear Power Plant has taken a portion of the Plant Computer out of service for scheduled maintenance. This has resulted in a portion of ERDS being out of service. From 0025 hours EDT on March 13, 2009 for approximately 36 hours, personnel will be performing maintenance activities which result in a partial loss of the Plant Computer. During this planned maintenance, portions of the Safety Parameter Display System (SPDS) and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP) will be unavailable.</br>In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Private Branch Exchange, Off Premise Exchange, and various redundant intra-facility circuits throughout the emergency facilities. The dose assessment function will be maintained during the out of service time period by manual input of data into CADAP and, if required, by manual calculation. The ability to open and maintain an 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the period of unavailability.</br>This event is being reported in accordance with 10CFR50.72(b)(3)(xiii), as a condition that results in a major loss of offsite communication capability. A follow-up notification will be made when the maintenance activities are completed and the equipment is restored.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1132 ON 3/14/2009 FROM TONY JARDINE TO MARK ABRAMOVITZ * * *</br>The plant has extended the expected plant computer outage time by 60 hours (ending 3/16/2009 at 2400).</br>Notified the R3DO (Lara).</br>* * * UPDATE AT 1907 EDT ON 3/16/2009 FROM TOM STEC TO BILL HUFFMAN * * *</br>The licensee has extended the expected outage time for the plant computer maintenance by an additional 24 hours. Repairs are now expected to be completed by 2400 EDT on 3/17/09. </br>The licensee will notify the NRC Resident Inspector. R3DO(Ring) notified.</br>* * * UPDATE AT 1723 EDT ON 3/17/2009 FROM ANTHONY JARDINE TO BILL HUFFMAN * * *</br>The licensee states that that the plant computer and all associated functions (SPDS, CADAP, and ERDS) were returned to service at 1313 EDT on 3/17/09. The licensee has notified the NRC Resident Inspector.</br> R3DO(Ring) notified. Resident Inspector.
R3DO(Ring) notified.
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00:00:00, 17 March 2009 +
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