Jan 20 (Reuters) - AMERICAN ELECTRIC POWER COMPANY INC'S $(AEP)$ INDIANA MICHIGAN POWER:

• SAYS AFTER A BRIEF PERIOD OFFLINE TO RESOLVE AN ELECTRONIC INSTRUMENTATION ISSUE, COOK PLANT’S UNIT 2 WAS RETURNED TO SERVICE, CONNECTING TO THE GRID AT 4:23 P.M., TUESDAY, JANUARY 20

• SAYS AT 3:20 A.M. ON SUNDAY, JANUARY 18, INDIANA MICHIGAN POWER’S COOK NUCLEAR PLANT UNIT 2 WAS AUTOMATICALLY SHUT DOWN DUE TO AN ISSUE WITH ELECTRONIC INSTRUMENTATION THAT MONITORS STEAM FLOW TO ONE OF THE UNIT’S FOUR STEAM GENERATORS

• SAYS IMMEDIATELY FOLLOWING THE AUTOMATIC TRIP, PLANT OPERATORS FOLLOWED PROPER PROTOCOLS TO SAFELY REMOVE THE REACTOR FROM SERVICE, PLACING THE UNIT IN A STABLE CONDITION.

• SAYS ONCE THE INSTRUMENTATION WAS REPLACED, THE UNIT WAS ABLE TO RETURN TO SERVICE ON THE ELECTRIC GRID.

• THE UNIT TRIP WAS NON-COMPLICATED, AND ELECTRIC SERVICE TO CUSTOMERS WAS NOT IMPACTED.

• SAYS COOK’S UNIT 1 REACTOR REMAINED SAFELY IN SERVICE AT 100% POWER FOR DURATION OF UNIT 2’S SHORT OUTAGE.

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((anushree.ashishMukherjee@thomsonreuters.com;))