NOTICE DATE: February 15, 2010

NOTICE TYPE: M-A021510-02 Outage

SHORT DESCRIPTION:  MOS Listener outage on February 14, 2010

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED:  February 14, 2010, from 6:35 AM to 7:08 AM

LONG DESCRIPTION:  ERCOT failed to update a configuration file prior to starting the scheduled Maintenance Outage on Sunday morning, February 14, 2010. This resulted in an outage of the MOS Listener from 6:35 AM until 7:08 AM. As a mitigation plan, prior to future Maintenance Outages, a checklist will be performed in order to avoid a similar-type outage. 

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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dh